During the breakdown of fatty acids, not all acetyl coa enters the citric acid cycle, and your body converts some acetyl coa to?

Answer:

matter is substance that has mass.

Answer: Mass and Volume?

Explanation:

The observation most likely indicates that only a chemical change has taken place the change cannot be reversed.

What is a Chemical change?

Hence, The observation indicates chemical change is the change that cannot be reversed.

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Water molecules are held together by hydrogen bonds because they are polar covalent bond molecules.

The smallest particle of a substance has all the physical and chemical properties of that substance. A molecule is made up of one or more atoms. If they contain multiple atoms, those atoms can be the same (the oxygen molecule has two oxygen atoms) or different (the water molecule has two hydrogen atoms and one oxygen atom). Biomolecules such as proteins and DNA are made up of thousands of atoms.

A simple molecule contains only a few atoms joined by covalent bonds. An example is carbon dioxide (CO 2 ), whose molecule contains a carbon atom bonded to two oxygen atoms.

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The 12-hour time of contact between alginate and therefore the plaster cast is not recommended because it influences the quality of the plaster cast

Gypsum may be a resource that is found by doing a variety of activities. Gypsum are often crafted into Gypsum Orbs, which may then be turned into special caches is called Gypsum Casts. Gypsum Casts are gear type specific, and when opened, guarantee an Expertise bump for that sort of gear as well as an item of that type.

Gypsum products are one among the most broadly utilized dental materials for fabrication of dental casts and dies which are used as for further construction of indirect dental restorations

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19 ml of a 5m solution of sodium borate must be added to a 200 ml solution of 50mm boric acid in order for the ph to be 9.6

Here pH=Pka-log[A]/[B]

= 9.6=9.24-log[A]/[B]

= log[A]/[B]=-0.36

Here for ml molarity formula is used

Molarity=mass/volume here mass of sodium borate is 381g/mol and volume of solution is 200ml

mass/volume=381/200=1.905/5.0×50=19ml

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An a-t base pair consists of 2 h-bond(s); a c-g base pair consists of 3 h-bond(s). The correct option is E.

Base pairs are the pairs that are made up of nucleotides. They are pairs of DNA bases. The base pairs are connected with each other by hydrogen bonds.

In between adenine and thymine, there are two or double hydrogen bonds present and between cytosine and guanine, there are triple bonds present.

So, there is 2 hydrogen bonds and triple hydrogen bonds in the base pairs of DNA, the genetic material.

Thus, the correct option is E, 2, 3.

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The question is incomplete. Your most probably complete question is given below:

A. 1, 2.

B. 2, 1.

C. 2, 2.

D. 3, 2.

E. 2, 3.

Answer:

Ionic bonds are stronger than covalent bonds

Bacteria and archaea fix nitrogen (n2) by reducing it to ammonia (nh3), the form of nitrogen assimilated by plants. the main reservoir of nitrogen is is the atmosphere.

The transformation of atmospheric Nitrogen N[tex]_{2}[/tex] into ammonia NH[tex]_{3}[/tex] which is a form that plants may use, is known as biological nitrogen fixation. However, eukaryotes do not engage in the process; it is exclusive to bacteria and archaea.

It has long been recognized that some archaea can contribute to the nitrogen cycling processes (albeit some of these organisms were not initially recognized as archaea). These included both assimilatory and dissimilatory activities, such as the fixing of atmospheric nitrogen. However, rather than large terrestrial or aquatic environments, these reactions were linked to extremophilic archaea that are generally found in 'exotic' habitats like hot springs or salt-saturated lakes.

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The molar mass of compound tells you the mass of 1 mole of that substance. The percent by mass of y in x₂y₂ is 57.14%

Molar mass of a substance is the mass in grams of one mole of the compound. In a substance, the amount of entities present e.g. atoms, molecules, ions, is defined as a mole. A mole of any substance is 6.022×1023 molecules

In compound x₂y, the percentage mass of x is 60%. The percentage mass of y is 40 %. Let the compound  weighs M , 2 units of x weigh 0.6M, 1 unit of x weighs 0.3* M and one unit of y weight 0.4*M.

In the compound x2y2, the percentage mass of y is

0.4*2 ÷ (0.4*2 + 0.3* 2 ) = 8 ÷ (.8+.6) = 0.8 ÷ 1.4 = 57.14 %

The percent by mass of y in x₂y₂ is 57.14%.

Thus, the percentage by mass of y in x₂y₂ is 57.14.

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The molar mass of camphor in the nearest whole number is 152 g/mol.

Given,

P = 12 torr or 0.01579 atm

1 atm = 760 torr

Density = 0.0829 g/l

R = 0.0821 L.atm/mol.K

T = 273° K + 80° K

T = 353° K

As we know,

PV = nRT

Or, PV = mass × R × T / molar mass

Or, P = mass × R × T / volume × molar mass

Where, mass/ volume = density (d)

P = dRT / molar mass

Now putting the values,

0.01579 = 0.0829 × 0.0821 × 353 / molar mass

Or, molar mass = 152.156 g/mol.

Hence, the molar mass of camphor is 152 g/mol.

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Living systems are made out of - phosphorus, sulphur and carbon.

Matter itself has energy and matter can be converted to energy and vice versa.

Atoms associate with one another to strengthen the stability of their arrangement of negatively charged electrons.

1. Common elements of the living organisms are - Nitrogen, oxygen, phosphorus, sulphur and carbon. These are the 6 most knowing common elements.

2. It's included more then 95% to 97% mass on a human body . Matter itself has energy and matter can be converted to energy and vice versa. The equal amount of matter can have totally different amount of energy and so show up the different type of matter.

3. Electron can be transferred one atom to another this is the most basic way that outer electron can from atom bond .

Atoms associate with one another to strengthen the stability of their arrangement of negatively charged electrons. The positively charged nucleus is surrounded by these electrons in so-called "shells," and according to quantum theory, each shell becomes stable once it has a particular amount of electrons.

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Zn, Cd, and Ag are transition metals that usually form only one monoatomic cation.

A monatomic cation is a cation made of only one atom.

Cations are positively charged ions, in this example Ag⁺, Cd²⁺ and Zn²⁺.

These cations form only one type of ion, while iron and copper form more than one type of cations.

Iron and copper form cations with different charges (Fe²⁺, Fe³⁺, Cu⁺, Cu²⁺).

It depends on electron configuration which type would be formed.

Electron configuration of zinc atom: ₃₀Zn 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s²

Transition metals are elements in the d-block of the Periodic table.

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The molecular formula of a molecule that has an empirical formula of ch and its molar mass is known to be 26 g/mol is C₂H₂

The molecular formula of a compound is the total number of atoms present in a molecule of the compound.

The empirical formula of the molecule is the simplest whole number of atoms of a compound.

The empirical formula of the molecule is ch

The molar mass is 26 g/mol

So, the molecular formula will be C₂H₂ and the compound is acetylene. It is a hydrocarbon.

Thus, the molecular formula of the molecule is C₂H₂.

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The pancreas releases NaHCO₃ to buffer the pH of the stomach juices.

Balanced chemical equation for reaction of sodium hydrogen carbonate (NaHCO₃) and hydrochloric acid (main acid in stomach juices):

NaHCO₃ + HCl → NaCl + CO₂ + HCl.

Hydrogen carbonate mixed is used to neutralizes stomach acidity, it converts stomach acid (hydrochloric acid) to carbon dioxide.

Buffer is a solution that can resist pH change upon the addition of an acidic or basic components and it is able to neutralize small amounts of added acid or base, pH of the solution is relatively stable.

Other molecules cannot buffer the pH because there are bases or very strong acids.

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B) 2.72 * 10^13 oxygen atoms are there in phosphoric acid.

The most significant phosphorus oxygen acid, also known as orthophosphoric acid (H3PO4), is used to create phosphate salts for fertilizers. Additionally, it is utilized in the production of albumin derivatives, dental cement, sugar, and textile manufacturing. It is used in food goods as an acidic, fruity flavoring.

A less concentrated version of phosphoric acid is a colorless syrupy liquid, while pure phosphoric acid is a crystalline solid with a melting point of 42.35° C (or 108.2° F). While white phosphorus is used to create acid with a higher purity, phosphate rock is used to create crude acid. Three classes of salts are produced by phosphoric acid depending on whether one, two, or three hydrogen atoms are substituted.

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Answer:

The can at 30 degrees had more energy.

Explanation:

Since Heat is a type of energy, and the first can (30C) is hotter than the second can (20C) you can see that it has more energy. Energy is related directly to heat.

The aluminum  can at 30 degrees had more energy.

Energy is defined as using physical or chemical resources to generate power, particularly to provide heat and light or operate machinery. People have figured out how to transform energy from one form to another and then use it to accomplish tasks, making modern civilization possible. Although energy can take on several forms, it cannot be created or destroyed.

Given that heat is a sort of energy and that the first can is hotter (30C) than the second can (20C), you can infer that the first can has more energy. You need to apply 0.90 J of heat in order to raise the temperature of 1 g of aluminum by 1 C. Under the same circumstances, the temperature of the aluminum varied less than that of the copper.

Thus, the aluminum  can at 30 degrees had more energy.

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The percent yield of reaction of tungsten (vi) oxide with excess hydrogen gas to produce metallic tungsten and 9.60 mL of water is 101.25%

The balanced chemical equation of reaction is -

          WO₃ + 3H₂ → W + 3H₂O

Given :

Mass of WO₃ = 43.9 g

Molar mass of WO₃ = 231.8 g/mol

Molar mass of H₂O = 18 g/mol

So,

Number of moles of WO₃ = Given mass

                                              Molar mass

                moles of WO₃ = 43.9 g         = 0.18 mol

                                           231.8 g/mol

Now, to calculate number of moles of H₂O, we use the balanced equation. From the equation,

1 mole of WO₃ reacts to give 3 moles of H₂O

So, 0.18 mole of WO₃ reacts to give 3 x 0.18 = 0.54 moles of H₂O

To calculate mass of H₂O,

Mass of H₂O = Moles x molar mass

                     = 0.54 mol x 18 g/mol

                     = 9.72 g

Therefore, the theoretical yield is = 9.72g

For actual yield,

 Actual mass = density x volume                             (density =mass/volume)

                       = 1.00 g/mL x 9.60 mL

                       = 9.6 g

Therefore, the actual yield is 9.6 g

Now, for percent yield of reaction,

        % yield =     actual yield     x 100

                         theoretical yield

                      = 9.72 x 100

                           9.6

                      = 101.25 %

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There is a significant quantity of energy released during the hydrolysis of the covalent bonds in ATP.

Phosphate-phosphate bond hydrolysis occurs during the breakdown of an ATP molecule, which releases a significant amount of energy.

How is ATP hydrolysis defined?

Adenosine triphosphate (ATP) contains highly energetic phosphoanhydride bonds that, when broken, such as occurs in muscles, release chemical energy through a catabolic reaction process called ATP hydrolysis.Nitrogen-carbon double bonds, phosphate-phosphate bonds, carbon-hydrogen bonds, and hydrogen bonds are all found in an ATP molecule.

Phosphate-phosphate bond hydrolysis occurs during the breakdown of an ATP molecule, which releases a significant amount of energy.

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The scientific questions Claudia can ask about the flame test are (A), (C), and, (D).

The flame test is used to find sure factors, which on heating deliver a particular colour to the flame.

clinical questions are extraordinary from regular questions as they've a prior goal and need to be testable.

a very good scientific question is absolutely reality-primarily based and may be answered through experiment or using previous evidence.

three principal kinds of clinical questions are Verification questions, size, or statement-based totally facts series, which include specific capabilities of an organism or phenomenon.

The clinical questions Claudia ask is-

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Answer:

a diagram of hydrogen has 1 proton with charge (+1) inside it's nucleus and no neutrons

also it has 1 electron with charge (-1) outside the nucleus in orbit

Explanation:

Answer:

2.70 grams

Explanation:

78.54% of the compound is carbon, so in a 1 gram sample, there would be 0.7854 grams of carbon since 78.54% * 1 = 0.7854. Similarly, we multiple 78.54% by 3.44 to get the mass of carbon in a 3.44 gram sample.
78.54% * 3.44 = 0.7854 * 3.44 = 2.701776, but only leave 3 digits because otherwise it would be false accuracy

Answer:

29.25g

Explanation:

Number of moles = Mass / Molar mass

Number of moles of NaOH = 20g/(23 + 16 + 1)

= 0.5mol

1 mol of NaOH = 1 mol of NaCl

Therefore, 0.5mol of NaOH = 0.5mol of NaCl

0.5mol = Mass of NaCl / (23 + 35.5)

Mass = 0.5 × 58.5

= 29.25g

I hope this helps! ^^

The balanced chemical equation for the standard formation reaction of solid calcium hydroxide CaOH2 is:

                                Ca + O2 + H2  →   Ca(OH)2

The reactant components that are required in the standard states are calcium(Ca), Oxygen(O2), and hydrogen(H2). Oxygen and hydrogen are in their gaseous form and calcium is in solid state.

All of these reactants react to form Ca(OH)2 which is also known as slaked lime.

                           Ca + O2 + H2  →   Ca(OH)2

This chemical equation is balanced because there are 1 Ca, 2 Oxygen atoms and 2 Hydrogen atoms on either sides.

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a. 55.0 g of ti = 0.02 moles

b. 16.9 mg of na = 0.62 moles

c.  7.95 x 1024 ne atoms = 0.4 moles

d. 25 xe atoms = 0.0037 moles

In chemistry, the term "mole" (sometimes written "mole") refers to a standard scientific unit for measuring vast amounts of extremely small objects like atoms, molecules, or other specific particles.

The mole represents 6.02214076 × 10^23 units, an astronomically huge number. With effect from May 20, 2019, the International System of Units (SI) adopted this number as the mole definition by the General Conference on Weights and Measures.

The number of atoms found in 12 grams of carbon-12, as established scientifically, made up the definition of the mole in the past. The quantity of units in a mole is also known as Avogadro's number or Avogadro's constant in honor of the Italian physicist Amedeo Avogadro (1776–1856).

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When Methane thiol, CH₃SH, reacts with O₂, 25.8 grams of Sulfur dioxide, SO₂ is formed and limiting reactant is Oxygen, O₂.

The balanced chemical reaction is:

CH₃SH(g) + 3 O₂(g) → 2 H₂O(g) + CO₂(g) + SO₂(g)

             Molecular weights:       Actual/given mass:

CH₃SH = 48.11 g/mol                    27.3 g      

O₂         = 32.01 g/mol                    38.6 g  

H₂O      = 18.01 g/mol            

CO₂      = 44.01 g/mol                  

SO₂       = 64.06 g/mol

Number of moles =    Given mass    

                                  Molecular mass

So,

moles of methane thiol = 27.3 ÷ 48.11= 0.56 moles

moles of oxygen = 32.01÷38.6 = 0.82 moles

From the reaction,

1 mole of CH₃SH reacts with 3 moles of O₂  to give 1 mole of SO₂

Thus, 0.56 moles of CH₃SH reacts to form 1 × 0.56 = 0.56 moles of SO₂

Mass of SO₂ produced is 0.56 × 64.06 g = 35.86 g

moles of SO₂ = 35.86 ÷ 64.06 = 0.55 moles

So,

The classification of an instrument that makes sound from the substance itself is Idiophones.

Instruments are objects that are used in labs and music classes. They are the main items that help in doing work in those classes and labs. Instruments are made with technical knowledge and help in technical things.

The idiophone is an instrument that produces sound by vibrating the plates of the instrument. Under this, the instrument produces voices by themselves.

Thus, Idiophones are a type of instrument that produces sound using the substance itself.

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The precaution to be taken while measuring the temperature of a liquid in a beaker is applying proper heat balance and taking all the required precautions.

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By ideal gas approximation, the final pressure is 2.14 atm.

We need to know about the ideal gas theory to solve this problem. The ideal gas is assumed that there is no interaction between particles in a gas. It can be determined by the equation

P . V = n . R . T

where P is pressure, V is volume, n is the number of moles gas, R is the ideal gas constant (8.31 J/mol.K) and T is temperature.

From the question above, we know that

V1 = 12.5 L

V2 = 29.3 L

P1 = 5.01 atm

When the initial and final temperature is the same, we can use the ratio of pressure and volume as

P1 . V1 = P2 . V2

5.01 . 12.5 = P2 . 29.3

P2 = 2.14 atm

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The two effects a soluble impurity usually has on the melting point of a compound are increase or decrease in the melting point of the compound.

The temperature at which a substance transforms from a solid into a liquid is known as its melting point. Melting happens for a pure substance at a single temperature.

The more prevalent soluble contaminants are organic matter, sodium chloride, sodium sulphate, sodium carbonate, magnesium chloride, calcium chloride, calcium sulphate, and calcium bicarbonate.

A solid's melting point is lowered by impurities, which have an impact on it. This occurs because the majority of solids have some sort of crystal lattice structure that is held together by the strong ionic binding forces. Impurities interfere with this lattice structure, weakening the bonds when they are present. Because of the weakened nature of these linkages, the solid will melt at a cooler temperature.

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