An inactive substance used in a controlled experiment to test the effects of an active substance.

Answers

Answer 1

Answer:

its placebo it is inactive substance not active like outer drugs which forms bonds with chemicals present in our body


Related Questions

Why are the properties of a compound different than the elements that make it up.

Answers

The properties of a compound are different than the elements that make it up.

What are properties of a compound ?

Physical and chemical characteristics of compounds allow us to recognize them. A quality that may be observed or measured is referred to as a physical property.

The characteristics of a compound are completely distinct from the characteristics of the constituent elements. Reason: Water is a chemical substance that is a nonflammable, noncombustible liquid. It is made up of two substances: oxygen, which promotes combustion, and hydrogen, a highly flammable gas.

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If two atoms have the same number of protons in their nucleus, you can conclude for sure that they ______. multiple choice question.

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If two atoms have the same number of protons in their nucleus, and different no. of neutrons, then they're called isotopes.

What are isotopes?

The term "isotope" refers to an element's atoms that have the same number of protons but differing numbers of neutrons. Because they have the same number of proton, they remain the same element.

The amount of neutrons varies among different isotopes of a given element, resulting in variations in atomic mass. They also differ in the abundance of the surrounding environment.

Therefore, two atoms of the same element with the same number of protons and different number of neutrons are called isotopes.

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Help I need help on this !! Please

Fast!!

Answers

Step 1 convert gal to L step 2 convert L to cl

Here given data is water are held in tanker truck volume = 5,500 gallon

So here 1st we have to convert

5,500 gallon = 20,819 Litre

So in 1st step we have to converted gallons into litre

Then 1 litre = 100 centilitre so,

20,819 Litre = 208.19 centilitre

So, in the 2nd step we have to converted litre to centilitre

5,500 gallon = 20,819 Litre and 20,819 Litre = 208.19 centilitre

This is how the conversion from beginning to ending

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Gold has a density of 0.01932 kg/cm3. what volume (in cm3) would be occupied by a 22.2 g sample of gold?

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A 22.2 g sample of gold with a density of 0.01932 kg/cm3 will occupy a volume of 1.1491 cm3.

Density, denoted by ρ, of a substance is its mass per unit volume. It shows the ratio between a substance mass and the volume it occupies. To solve for density, the formula is given by

ρ = mass / volume

Given a substance density, we can compute for its mass or volume using the same formula and vice versa.

But before inputting the values, convert the mass from g to kg to match the unit of density. (1 kg = 1000g)

mass = 22.2 g = 22.2 / 1000 = 0.0222 kg

To compute for the volume a sample of gold occupies,

volume = mass / ρ

where mass = 22.2 g = 0.0222 kg

ρ = 0.01932 kg/cm3

volume = 0.0222 kg / 0.01932 kg/cm3

volume = 1.1491 cm3

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Determine the excess reactant and calculate the mass of the remaining excess reactant after 20.0 grams of al and 10.0 grams of o2 react.

Answers

The reactant in excess is Al (s)

The mass of remaining surplus reactant is 8.76 g

According to question

4 moles of aluminium reacts with 3 moles of oxygen, to make 2 moles of alumina.

Molar mass Al: 26.98 g/m

Molar mass O2: 32.00 g/m

Mass / Molar mass: Moles

20 g Al / 26.98 g/m = 0.741 moles 10 g O2/32.00 g/m 0.312 moles =

Let's find out the limiting reactant and reactant in surplus by rules of three: the 4 moles of Al reacts with 3 moles of O2

0.741 moles of Al reacts with (0.741.3)/4 = 0.555 moles

Now we know that are needed 0.555 moles of O2 to consume all the Al but we only have 0.312 moles of O2.

The O2 is the limiting reactant, so the Al is the reactant in excess.

Let's make another rule of three

3 moles of O2 reacts with 4 moles of Al

0.312 of O2 reacts with (0.312 .4)/3 = 0.416

We need 0.416 moles to consume all the O2 and we have 0.741 moles of Al.

When we use 0.416 moles from 0.741 it remains 0.325

0.325 moles . 26.98 g/m = 8.76 grams

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In a photochemical process a hydroen atom absorbs a 410 nm photon and shortly thereafter it emits a 2628 nm photon. what is the change in energy for the combination of these processes?

Answers

0.389×10^−19J  is the change in energy for the combination of these processes.

λ1=410nm=410×10^−9m

λ2=2628nm=2628×10^−9m

E1−E2 = Energy absorbed by the atom in the process =hc[1/λ1−1/λ2]

=6.63×3[1/410−1/2628]×10^−9 = 0.389×10^−19J

We get, 0.389×10^−19J.

Energy is the quantitative property that is transferred to a body or to a bodily system, recognizable in the performance of work and in the structure of warmth and light. Energy is a conserved quantity—the regulation of conservation of energy states that strength can be transformed in form, however not created or destroyed. The unit of size for energy in the International System of Units (SI) is the joule (J).

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What reagent or reagents is reuired for the conversion of yclohexene to cycloexane?

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Reagents required for conversion of clohexene to cycloexane is H2,Pt.

Functions do reagents serve in chemistry:

A chemical reaction is used to confirm the detection of another substance and is referred to as a "substance or compound that is added to a system in order to bring a chemical reaction or is added to check whether a reaction has occurred or not."

Reagents required for conversion of clohexene to cycloexane is H2,Pt.

Hydrogenation of cyclohexene in presense of Pt catalyst gives cyclohexane .

cyclohexene + H2  -----(Pt)----> cyclohexane .

Pt is acting here as a catalyst.

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How would you prepare 10. 0 ml of a 0. 25% m/v hcl solution if 1% m/v hcl was available? how much 1% m/v hcl is needed? how much distilled water is used?.

Answers

To prepare the HCl solution if 1% m/v HCL was available, take 2.5ml of the stock solution and makeup to mark with 7.5 ml of water.

What is HCl?

HCl is hydrochloric acid, and it is a highly reactive and strong acid.

Given, the dilution formula

C₁V₁= C₂V₂

C₁ = initial concentration

V₁ = initial volume

C₂ = Final concentration

V₂ = final volume

The values are

C₁ = 1% m/v

V₁ = ?

C₂ = 0.25% m/v

V₂ =  10 ml

V₁  = C₂V₂/C₁

V₁  = 0.25% m/v ×  10 ml /1% m/v

V₁  = 2.5 ml

Thus, the amount of HCl is 2.5ml of the stock solution. The amount of water is 7.5 ml of water.

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How many positional isomers of nonene are there? (consider only linear compounds, not branched isomers.)

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2 linear positional isomers of nonene are there

Nonene have molecular formula is C₉H₁₈ called nonene no of possible isomers are 35 but including branched there are 35 isomers of nonene while linear compound mean only straight chain compound here straight chain compound are only 2 common name for nonene is non-1 ene there are so many isomers are seen in nonene Straight chain, Octanes, Heptanes,3,1 Dimethylheptanes,3,2 Ethylheptanes, Hexane, 4.1 Trimethyl. 4.2 Methyl+Ethyl, Pentane. in nonene class of organic compounds known as unsaturated aliphatic hydrocarbons. these are aliphatic hydrocarbons that contains one or more unsaturated carbon atoms. These compounds contain one or more double or triple bonds.

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Chemisrty seeks to explain the submicroscopic events that lead to macroscopic observations. explain this statement

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Submicroscopic events are the structure and behavior of the matter or particle that can use for the macroscopic observations of the matter.

What are submicroscopic elements?

Sub microscopic elements are very minute and small particles that can be only seen by a microscope. These are small particles that together make the big matter.

Macroscopic particles are big particles that are constituted by small particles.

Thus, the structure and behavior of the matter or particle that can be used for macroscopic observations of the matter are submicroscopic occurrences.

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A solution is 0.0480 m lif. what is the molarity of the solution if the density is 1.10 g/ml?

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The molarity of the solution is 0.528 mol/L.

Given,

Molarity = 0.0480 LiF.

Density = 1.10 g/ml

0.0480 moles of LiF are present in 1 kg of solvent.

Mass of 0.0480 moles of LiF = zero.0480 mol × 26 g/mol = 1.248 g

Mass of the answer (m)=  1 kg (solvent) + 1.248 g(solute)

m = a thousand g + 1.248 g = 1001.248 g

locating the quantity of the solution,

extent = Mass / density

setting the values of mass and density, we get the quantity,

quantity = 910.2254 mL or, 0.9102254 L

The molarity of the solution is the moles of the compound in a single liter of solutions.

Molarity = mass of compound/ molar mass × volume(L)

via placing the values we get,

Molarity = zero.528 mol/L

as a result the molarity of the answer is zero.528 molar.

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for number less than 0.1, such as 0.06, the zeros to the right of the decimal point but before the first nonzero digit

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For the number less than 0.1 such as 0.006, the zeroes to the right of the decimal point but before the first non zero digit show the decimal place of the first significant digit.

The number that is given as digits is established using significant figures.Any two non-zero digits that are separated by a zero are significant figure.Every zero that is both to the right and left of a non-zero digit and the decimal point is not significant figure. The quantity of significant figures frequently reveals the degree of measurement accuracy. From the first non-zero digits in the figure, we may determine the number of significant figures.

There is only one significant figure in the provided number 0.06. The decimal place of the first digit is indicated by the zeros that appear to the right of the decimal point but before the first non-zero digit.

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The nuclear envelope differs from the cell membrane and the membranous endoplasmic reticulum because it _____.

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The nuclear envelope differs from the cell membrane and the membranous endoplasmic reticulum because it Is a double membrane.

What is the Difference Between Nuclear Membrane and Nuclear Envelope?

Nuclear membrane and nuclear envelope vary primarily in that nuclear membrane serves as a barrier that selectively separates nucleoplasm from cytoplasm, whilst nuclear envelope serves as a structure that separates the nucleus's contents from the cytoplasm. Additionally, the nuclear envelope is made up of two nuclear membranes and nuclear pores, whereas the nuclear membrane is a lipid bilayer.

All eukaryotic cells with a nucleus have two structural elements called the nuclear membrane and nuclear envelope.

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A 59. 4 g sample of the compound x4o6 contains 14. 4 g of oxygen atoms. What is the molar mass of element x?.

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The molar mass of element X is 75 g/mol.

m(X₄O₆) = 59.4 g; mass of the compound

m(O) = 14.4 g; mass of oxygen in the compound

n(O) = 14.4 g ÷ 16 g/mol

n(O) = 0.9 mol; amount of oxygen in compound

m(X) = m(X₄O₆) - m(O)

m(X) = 59.4 g - 14.4 g

m(X) = 45.0 g; mass of element X

Ratio of the elements in the compound: n(X) : n(O) = 4 : 6.

n(X) = 0.9 mol × 4 / 6

n(X) = 0.6 mol; amount of element X in the compound

M(X) = m(X) ÷ n(X)

M(X) = 45.0 g ÷ 0.6 mol

M(X) = 75 g/mol; molar mass of element X

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How are the electron arrangements in a given
group (vertical column) of the periodic table
related? How is this relationship shown in the
properties of the elements in the given group?

Answers

Although the valence electron structures of the atoms of each element in a vertical column are often the same, the number of energy levels in the atoms increases as the elements descend the column.

How are elements with the same vertical group related in terms of their electron configuration?

Because of their comparable chemical behavior, the vertical columns of the periodic table are referred to as groups or families. A family of elements' members share the same valence electron count and chemically similar characteristics.

Why are the characteristics of the components within the same vertical column similar group?

Periods and groups are the names of the horizontal rows and vertical columns, respectively. Chemical characteristics of elements within the same group are comparable. Due to the fact that they have an equal number of outside

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3.7+5.894+782.52=
in sig fig rules

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In scientific notation, "significant figures" refers to the significant single digits (0 to 9, inclusive) of the coefficient of expression.

What do you mean by significant numbers using an example?

A significant figure in a given number is made up of all the certain digits plus one uncertain digit. They are reliant on the scale's or measurement tool's accuracy.

What is the example of significant figure?

1. 587 is an example of four important digits (three are certain and one is doubtful).

What is the calculation of the above problem?

On solving above problem we get,

3.7 + 5.894 + 782.52

9.594 + 782.52

792.114

792.1

The answer of the above problem is 792.1.

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A vacuum gage connected to a chamber reads 54 kpa at a location where the atmospheric pressure is 92 kpa. determine the absolute pressure in the chamber.

Answers

The absolute pressure in the chamber is 38 kPa.

p(vacuum gauge) = 54 kPa; pressure of vacuum gauge, pressure is below atmospheric pressure, so it is called negative or vacuum gauge pressure

p(atmospheric pressure) = 92 kPa

p(absolute pressure) = ?

p(absolute pressure) = p(vacuum gauge) - p(atmospheric pressure)

p(absolute pressure) = 92 kPa - 54 kPa

p(absolute pressure) = 38 kPa

Atmospheric pressure or barometric pressure is the pressure within the atmosphere of the Earth.

Absolute pressure is the pressure in a vacuum. Absolute pressure uses absolute zero as its zero point.

Vacuum gauge pressure uses atmospheric pressure as its zero point.

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A solution of h2so4(aq) with a molal concentration of 6.80 has a density of 1.318 g/ml. what is the molar concentration of this solution?

Answers

The molal concentration of the solution is 5.38 M.

The molal concentration of sulphuric acid = 6.80 m

The density of the solution = 1.318 g/ml

Mass of the sulphuric acid in the solution is,

[tex] = 6.80 \times 9.80[/tex]

[tex] =666.4 \: g[/tex]

The mass of sulphuric acid present in the solution is 666.4 g.

Let the mass of the solvent in which sulphuric acid is dissolved be 1000 grams.

So the total mass of the solution is,

= Mass of solvent + Mass of sulphuric acid

[tex] = 666.4 \: + \: 1000[/tex]

[tex] = 1666.4 \: g[/tex]

The total volume of the solution is,

[tex] = \frac{1666.4 \times 1}{1.318 \times 1000} [/tex]

[tex] = 1.264 \: L[/tex]

The volume of the solution is 1.264 liters.

The molal concentration of this solution is,

[tex] = \frac{6.80}{1.264} [/tex]

[tex] = 5.38 \: M[/tex]

Therefore, the molal concentration of the solution is 5.38 M.

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When using a water-cooled condenser, the water should_____the condenser. to make this happen, the water should flow in at the____and should flow out at the_____.

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A water-cooled condenser must have the water flowing over it continuously to function. The water must enter through the bottom port and exit through the top port for this to occur.

What is condenser?

A device or component used to condense vapor into liquid is a condenser (heat transfer). HVAC air coils are an example of specific sorts. Condenser (laboratory), a group of glassware used in laboratories to cool fluids.

The condenser's job is to take the high-pressure gas coming from the compressor and turn it into a liquid. By using the idea that heat will always travel from a warmer to a cooler substance, it accomplishes this.

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What parts of polypeptide participate in bonds that hold together secondary structure? tertiary structure?

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The parts of polypeptide participate in bonds that hold together secondary structure and tertiary  Secondary structure shape is supplied via way of means of hydrogen bonds among atoms withinside the polypeptide spine of proteins. Interactions among the aspect chain atoms of the amino acid subunits shape the confirmation.

The  Secondary structure shape includes nearby packing of the polypeptide chain into α-helices and β-sheets via way of means of hydrogen bonding among the peptide bond and the significant carbon spine. Tertiary (3D) shape is the form that outcomes from secondary structural folding decided via way of means of interactions among amino acid aspect chains.

Secondary structure outcomes from hydrogen bonds that shape among atoms withinside the polypeptide spine. A hydrogen bond is shaped among a partially bad oxygen atom and a partially effective nitrogen atom.

The tertiary structure is stabilized via way of means of aspect chain purposeful corporations inclusive of numerous interactions, in particular hydrogen bonds, salt bridges, covalent disulfide bonds, and hydrophobic interactions.

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what is the difference between metals and non non metals

...

Answers

Answer:

Metals tend to be hard, metallic-looking solids, with high electrical and thermal conductivity values and high melting and boiling points. Nonmetals tend to be softer, often colorful elements. They may be solids, liquids, or gases.

Answer: Metals are hard and have high melting and high boiling points and high electrical and thermal conductivity values and nonmetals are softer and are substances like solids,liquids,or gases.

Which of the following best compares a fission reaction and a fusion reaction?
A.Both reactions absorb energy; in a fission reaction, two smaller atoms combine to form one larger atom, while in a fusion reaction, one large atom splits into smaller atoms.
B.Both reactions absorb energy; in a fission reaction, one atom splits into two smaller atoms, while in a fusion reaction, two smaller atoms combine to form one larger atom. C.Both reactions release energy; in a fission reaction, two smaller atoms combine to form one larger atom, while in a fusion reaction, one large atom splits into smaller atoms.
D.Both reactions release energy; in a fission reaction, one atom splits into two smaller atoms, while in a fusion reaction, two smaller atoms combine to form one larger atom.

Answers

Answer:

D.

Explanation:

A chemist experiments on a molecule with the formula of c5h10o5. this compound is likely a(n) ________.

Answers

A chemist experiments on a molecule with the formula of c5h10o5. this compound is likely a(n)  carbohydrates.

A molecule with the formula C₅H₁₀O₅  is carbohydrates.

What are Carbohydrates?

The carbohydrates are represented through the chemical system Cₙ(H₂O)ₓ.C denotes carbon within the components with a few water molecules. hence, carbohydrates mean hydrated carbon as it has some water molecules attached.The ratio of carbon, hydrogen and oxygen in carbohydrates is 1:2:1.Glucose is the maximum plentiful and simple carbohydrate.Monosaccharides and polysaccharides are the 2 kinds of carbohydrates.Carbohydrates are biomolecules.they also offer electricity to living things through numerous meals like bread, and rice, and so forth.

therefore the molecular method C₅H₁₀O₅ represents carbohydrates.

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A 2. 50 x 10-3 kg sample of oxygen gas at 31. 0 °c has an average molecular velocity of 487 m/s. What is the ke of the gas? report your answer in joules to the nearest whole number.

Answers

A 2. 50 x 10-3 kg sample of oxygen gas at 31. 0 °c has an average molecular velocity of 487 m/s then ke of the gas is 5,929.225 J

Here we have to find kinetic energy of gas and sample is given as 2. 50 x 10-3 kg and velocity of 487 m/s so, formula to find kinetic energy is:

KE=1/2mv²

KE=1/2×2. 50 x 10⁻³×(487)²

KE=5,929.225kgm²/s²

Here 1 joule = 1 kgm²/s² so

1×5,929.225=5,929.225 J

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Which compound would be most easily formulated as an aqueous solution used to quickly provide energy to an athlete?

Answers

The compound would be most easily formulated as an aqueous solution used to quickly provide energy to an athlete is carbohydrate.

carbohydrate strategy is used for athletes to maximize the storage of energy , in form of glycogen, in muscles. simple carbohydrates are simple sugar such as fructose and glucose.Every athletes anywhere should consume 3 - 12 gm per kilo weight throughout the day, depending on their training routine.

Carbohydrates provide energy for the body including muscles , brain, nerves and other tissues present in body.thus, carbohydrates acts  a master fuel in body.

carbohydrates are used for energy (glucose). athlete drinks contain carbohydrates ans electrolytes.

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Hydrogen+peroxide+used+as+a+6%+solution+is+used+to+clean+wounds+on+skin+as+a(n)+__________,+and+it+is+also+used+as+a+stronger+solution+(>30%)+as+a(n)+__________.

Answers

Hydrogen peroxide used as a 6% solution is used to easy wounds on pores and skin as an antiseptic ,and it is also used as a stronger answer (>30%) as an antimicrobial agent and an oxidizing agent.

Hydrogen peroxide (H2O2) is a topical antiseptic utilized in wound cleaning which kills pathogens through oxidation burst and nearby oxygen manufacturing. H2O2 has been said to be a reactive biochemical molecule synthesized by means of various cells that impacts biological behavior thru multiple mechanisms: alterations of membrane potential, technology of latest molecules, and changing intracellular redox balance, which leads to activation or inactivation of different signaling transduction pathways.

As an disinfectant, it additionally treats wounds. Hydrogen peroxide capabilities as an oxidizing element in personal care merchandise, which includes colorants and toothpastes, and gives a lightening/whitening impact.

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What group is obtained by adding or deleting from each of the following groups the indicated symmetry operation?
a) c3 plus i
b) c3v plus i
c) c3h minus s35
d) c3 plus s6

Answers

In the group that is obtained by adding or deleting from each of the following groups, the indicated symmetry operation is c3 plus i. The correct option is a.

What are symmetries?

In organic chemistry, the shape of the compounds that are formed is made or discovered. The shape of water molecules, benzene, etc. These structures of symmetries are sent by the connecting or joining of elements with bonds.

Citroën C3 is an organic compound that gives symmetry operation when a group or added or deleted from the compound.

Thus, the correct option is a. c3 plus i.

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Water has more structure than other liquids because of its ability to form hydrogen bonds. Because of this phenomena, water expresses a relatively high __________, which allows it to cushion and protect the body’s structures.

Answers

Water has more structure than other liquids because of its ability to form hydrogen bonds. Because of this phenomenon, water expresses a relatively high density, which allows it to cushion and protect the body’s structures.

Water is a chemical element consisting of hydrogen and oxygen and exists in gaseous, liquid, and solid states. It is one of the most abundant and important compounds. It is a tasteless, odorless liquid at room temperature and has the significant ability to dissolve many other substances.

You may be surprised to learn that most of Liverpool's drinking water comes from two beautiful lakes, Llyn Celyn and Vyrnwy, 80km south of Wales. Both lakes supply millions of gallons of water to the city each day. In humans, it functions as both a solvent and transport mechanism, dissolving essential vitamins and nutrients from food and delivering them to cells. Our bodies also use water to flush out toxins, regulate body temperature, and support metabolism.

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In this lab experiment, you will react copper(ii) chloride and aluminum. you will look for clues as to which substance was in excess and which limited the reaction

Answers

How can you identify the reactant that is restricting a chemical reaction while watching it take place? ”

What is the real purpose of scientific study?

Building scientific knowledge, or discovering rules and positing ideas that may explain natural or social occurrences, is the aim of scientific study. It is crucial to recognize that this knowledge might be inaccurate or perhaps quite distant from the truth.

An experiment is what?

A hypothesis, or an anticipation about how a certain process or phenomena operates, is typically the subject of an experiment. However, an experiment may also seek to address a hypothetical issue or support earlier findings without having any preconceived notions about what would be revealed.

Complete question -

In this lab experiment, you will react copper(ll) chloride and aluminum. You will look for clues as to which substance was in excess and which

limited the reaction. Write an investigative question that describes the

scientific goals of this experiment. Make sure that your question applies to any reaction. Investigative Question:

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Electrodes have been placed on samantha's scalp. her doctor wants to assess her brain-wave activity through the use of a(n)?

Answers

Electrodes have been placed on samantha's scalp. her doctor wants to assess her brain-wave activity through the use of an electroencephalogram, or EEG. An electroencephalogram (EEG) is a test that uses small metal discs (electrodes) connected to the scalp to assess electrical activity in the brain.

Brain cells interact by electrical impulses and are constantly active, even while sleeping.  An EEG is a test that detects irregularities in your brain's electrical activity or brain waves. Electrodes comprised of small metal discs with thin wires are deposited onto your scalp during the process. An EEG is primarily used to detect and investigate epilepsy.

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The process of collecting information that identifies similarities and differences among jobs is ____. He incisal ridge of the permanent mandibular central incisors is usually at ____degrees to the labiolingual axis of the crown Exercise 2 Write the plural form of each noun. turkey (q004) which subfield of biological anthropology uses the fossil record to examine the anatomy and behavior of our relatives in the past? On the continuum of health, the two endpoints are absence of disease and optimal health. True or false?. what was the purpose of the declaration of sentiment This is science I don't know why they dont have science but the question is whats wrong list 6 diffrents saftey concerns shown in the picture Suppose the equilibrium price of a gallon of milk is $4. If the government imposes a price floor of $5 per gallon of milk, the. An epidemiological study of the spread of a certain influenza strain that hit a small school population found that the total number of students, P, who contracted the flu t days after it broke out is given by the model P = -2+ 17t + 180, where 1 st 6. Find the day that 210 students had the flu. Recall that the restriction on this at most 6.Submit Answer Which doctrine requires that searchers consider the probable size and shape of evidence they seek? Plant A is receiving sunlight , soil, and regular water, plant B is also receiving sunlight, soil, and regular water. Yet Plant B is ALSO getting fertilizer. Write a hypothesis of what will happen to the plants as they grow over the next few weeks. Hypothesis I need help please!! Ashley has many interests. She likes to read, listen to music, and play soccer with herfriends. But her favorite thing to do is to go camping with her family. She likes campingbecause she gets to spend time with her mom and dad and little brother. She also lovesbeing outside and sleeping in a tent. She likes cooking over a campfire and roastingmarshmallows. Camping is a great way to get fresh air and exercise.2. Which of the following is a supporting detail about Ashley from theparagraph that gives the best support for the main idea?OShe likes all kinds of music.OShe likes weekends.OShe likes cooking over a campfire.OShe likes her little brother.(1 point) Need help badly, I also need to know how you got the answer. A body of mass 20g performs simple harmonic motion at a frequency of 10Hz. Its position is 10cm from the mean position, calculate its velocity Solve the quadratic equation by completing the square.x+18x+79=0 Most archaeologists agree that many Phoenician styles were truly ________________.A) beautifulB) GreekC) well-designedD) Egyptian 4Albert made $54.25 bagging groceries for 5 hours last week. What was Albert's hourly wage? ' Consider even the earth and the moon. about how many moons would fit across the earth? when a cashier is deciding how many hours to work, the marginal benefit she should consider is and the marginal cost she should consider is .