Amino acids are built around a central ____________ atom bonded to a ____________ atom and three other groups of atoms.

Answer:

electrolytes

Explanation:

Hello!

Density measures... (c) how tightly packed an object's particles are.

Hope this helps!

Answer:

34.4

Explanation:

You would divide the mg by 1000 to get the number of grams.

The electrons are more closely linked the closer they are to the nucleus, enhancing the atom's electronegativity.

The ability of an atom to polarise electron density in its own direction is measured by electronegativity. As a result, it is USUALLY a function of the nuclear charge's symbol, atomic number Z. The most electronegative elements are fluorine and oxygen, which are located to the right of the Periodic Table.

These elements have smaller atomic radii and greater electronegativity due to their higher atomic numbers. The distribution of electrons around an atom's nucleus determines its size, so it makes sense that there would be a link between electronegativity and radius. The electrons are more closely linked the closer they are to the nucleus, enhancing the atom's electronegativity.

To learn more about electronegativity please visit-
https://brainly.com/question/17762711
#SPJ9

There is more traffic between 8 and 9 in the morning because most people start work at 9. this would be a(n) hypothesis.

A hypothesis is a tested assertion about the relationship between two or more variables or a proposed justification for an observed phenomenon in a scientific context. It helps make a connection to the guiding idea and specific study topic.

It supports data processing and evaluates the study's validity and reliability. It provides a base or further proof to back up the study's validity.

A hypothesis can be categorised as being straightforward, complex, or direction-based.

To learn more about hypothesis from given link

https://brainly.com/question/606806

#SPJ4

Answer:

Same amount of liquid and take up same amount of liquid but they are in different containers

Explanation:

The difference between ideal gases and real gases are most pronounced under conditions of inter molecular forces.

Difference between ideal gases and real gases are discussed below :

Real gases differ from ideal gases thanks to the presence of inter molecular forces, which cause the molecules of a true gas to deviate from perfect random motion.

As a result, real gases deviate from the perfect gas law at high densities and low temperatures, where the results of inter molecular forces are more pronounced.

So, the difference between ideal gases and real gases are most pronounced under conditions of inter molecular forces.

What are inter molecular forces?

The attractive forces that exist between molecules are liable for many of the bulk physical properties exhibited by substances.An inter molecular force (IMF) (or secondary force) is that the force that mediates interaction between molecules, including the electromagnetic forces of attraction or repulsion which act between atoms and other sorts of neighboring particles, e.g. atoms or ions.

Learn more about inter molecular forces :

brainly.com/question/13588164

#SPJ4

The most complete charge balance expression for a saturated solution of CaC₂O₄ is [Ca²⁺] = [C₂O₄²⁻]

Saturated solution is a solution that has dissolved as much solute as it is capable of dissolving. CaC₂O₄ is named as Calcium oxalate it is colourless solution. complete charge balance expression for a saturated solution of CaC₂O₄ are as follow:

CaC₂O₄ → 1Ca²⁺ + 1C₂O₄²⁻

Know more about  saturated solution of CaC₂O₄

https://brainly.com/question/28500291

#SPJ4

If the dissolution of borax in water is spontaneous, the change in enthalpy will be both positive and negative. It can be predicted by the sign of the enthalpy change depending on the temperature.

Borax is a hydrated borate of sodium. It is a salt. When borax is mixed in water, it is converted into boric acid and the pH will be 9.13.

Enthalpy is a total heat energy present in a closed system, also called a thermodynamic system.

Thus, the change in enthalpy will be of both signs. Predicted by the sign of the change in temperature.

To learn more about enthalpy, refer to the link:

https://brainly.com/question/3298339

#SPJ4

The mass of fuel has the airplane taken on is 201145g.

Use the formula [tex]mass = density \times volume[/tex]. And since we are given the value of density, we just substitute it to the formula since the density of a compound is constant at a given temperature. So we have:

mass = [tex]0.821 \dfrac{g}{mL}\times(245 L\times\dfrac{1000mL}{1L}) =201145g[/tex]

Density is the dimension of how tightly a cloth is packed together. It is defined as the mass per unit volume. Density Symbol: D or ρ Density Formula: ρ = m/V, where ρ is the density, m is the mass of the object and V is the volume of the object.

Learn more about Density here:

https://brainly.com/question/15164682

#SPJ4

Cr2O3 is the empirical formula of a compound that is 68.42% Cr and 31.58% O by mass.

The subscripts are Cr2O3.

Here is another question with an answer similar to this about getting the empirical formula: https://brainly.com/question/14044066

#SPJ4

Answer:

Which problem ??

Explanation:

Can you write your problem ??

3.733mol potassium ions are in 5.48 g of potassium sulfate: k2so4

The molar quantity of potassium sulfate:

Here 5.48 g of potassium sulfate and molecular weight of potassium sulfate is 174.27 g/mol  are given so  5.48 g / 174.27 g/mol = 0.031mol

0.031mol potassium sulfate, there are 2×0.031=0.062mol with respect to potassium ion

we multiply this molar quantity by avagadro's no

avagadro's no=6.022×10²³

0.062×6.022×10²³=3.733mol

Know more about potassium ions

https://brainly.com/question/28498657

#SPJ4

We use laundry detergent as a liquid or powder because powder and liquid detergents have more enzymes.

What is detergent?

When present in diluted solutions, a surfactant or combination of surfactants has the ability to clean.There are many different types of detergents; one popular family is the alkylbenzene sulfonates, which are soap-like substances that are more soluble in hard water because the polar sulfonate in detergents is less likely to bind to calcium and other ions found in hard water than the polar carboxylate in soap.

Detergents in both powder and liquid form contain additional enzymes and surfactants that break down grease and slime on clothing. Additionally, because the molecules of liquid and powder soaps can move more freely than those of solid bar soap, it is simpler for them to function as nonionic surfactants.

To learn more about detergent click the given link

https://brainly.com/question/24852631

#SPJ4

The potential energy stored in high-energy bonds is commonly harnessed when the bonds are split by the addition of water in a process called hydrolysis.

Hydrolysis of high-energy compound (ATP) using water:

ATP + H2O → ADP + Pi

ATP is short for adenosine triphosphate.

Adenosine triphosphate converts to either the adenosine diphosphate (ADP) or adenosine monophosphate (AMP), in this process energy is released.

ATP is made of three components: the triphosphate, the sugar ribose and a nitrogenous base (adenine).

In cellular respiration where organic matter is transformed into carbon dioxide and energy is released for production of ATP.

Glucose and oxygen are reactants and carbon dioxide, water and energy are products of this chemical reaction; cellular respiration creates an energy molecule (ATP) when glucose is broken down.

More about potential energy: brainly.com/question/21175118

#SPJ4

The orbitals that overlap to form the c-h bond in ethene (h2c=ch2) is  s-sp2. The correct option is d.

Orbitals are wave functions that are the places where the electrons can be found. There are different orbitals present. These are s, p, d, and f. Orbitals are of different shapes. Round orbital and eight-like shapes.

Each carbon atom is joined to two hydrogen atoms in the ethylene molecule. Therefore, for the C-H sigma bonds in ethylene, overlap two sp2-hybridized orbitals with the 1s orbitals of two hydrogen atoms.

Thus, the correct option is d. s-sp2.

To learn more about orbitals, refer to the link:

https://brainly.com/question/18914648

#SPJ4

An increase in pressure increasing the billing point is an example of a physical property.

As it demonstrates the physical state, the increase in pressure with boiling point is an example of a physical property.

Learn more about boiling point:

https://brainly.com/question/25725550

The complete question is:

An increase in pressure increasing the boiling point of a liquid is an example of a —

A physical change

B chemical change

C physical property

D chemical property

#SPJ9

To prepare 128.2ml of a 0.364 M aqueous solution of NaCl.the mass in grams, of NaCl need to use to make the solution is 2.723 gm.

Molarity is defined as the no. of moles of solute per liter of solution.

Here,

Molarity =  moles of solute / Liter of solution

0.36 M solution will contains 0.364 moles of NaCl.

therefore, volume of solution in L =  ( 128.2 / 1000 ) L × 1 L

                                                 = 0.1282 L

that means, it will contain, no. of moles of NaCl

= (0.1282 L of solution × 0.364 ) / 1 L of solution      

= 0.0466 moles of NaCl

now, molar mass of NaCl  = 58.44 g/mol    

so, 1 mol of NaCl has a mass of  58.44 g/mol

therefore, 0.0466 moles of NaCl will have mass of

= ( 0.0466 moles of NaCl × 58.44 g ) / 1 mole of NaCl

= 2.723 g

Thus,To prepare 128.2ml of a 0.364 M aqueous solution of NaCl .the mass in grams, of NaCl need to use to make the solution is 2.723 gm.

To learn more about molarity here

#SPJ4

Answer: gas

Explanation:

Increased quantities of Mitochondria in the muscle cells leads to produce great amount of energy.

What are skeletal muscle cells?

Skeletal muscle fibers are very elongated cells with a sarcolemma, a very elastic and resilient plasma membrane. Muscle fibers are referred to as syncytiums because they are distinguished by the presence of many nuclei near the cell's edge.

Myocytes, or muscle cells, are the cells that make up muscular tissue. Long, cylindrical, multi-nucleated, and striated cells make up skeletal muscle. Due to their high energy needs, skeletal muscle cells have numerous mitochondria that enable them to produce enough ATP.

To learn more about skeletal muscle cells click the given link

https://brainly.com/question/1283837

#SPJ4

The heat will flow from a warm substance to a cold substance.

The movement of heat from a hotter object to a chillier one – when two resources at exclusive temperatures are blended together, warmth flows from the warmer physique to the cooler body until they attain the equal temperature (Zeroth Law of Thermodynamics – Thermal Equilibrium)

Learn more about heat here;

https://brainly.com/question/1429452

#SPJ4

Answer:

First, I will convert from grams to moles. This will give me approximately 4.032 moles of carbon, 6.740 moles of hydrogen, and 3.344 moles of oxygen. Then, I will calculate the mole ratio, using whole numbers. I must also identify the least amount of moles in an element for this step, which is oxygen at 3.344 moles.

Oxygen = 3.344/3.344 = 1

Carbon = 4.032/3.344 = 1

Hydrogen = 6.740/3.344 = 2

The empirical formula will be COH2.

Now that we have the molar mass of the molecular formula, we can calculate for the molecular formula. First, we will begin by discovering the molar mass of the empirical formula, which will be C molar mass x 1 + O molar mass x 1 + H molar mass x 2. That will be equal to 60.949. After that, we can divide the molecular mass by the empirical formula molar mass, giving us approximately 3. Now we will multiply the empirical formula by 3, giving us our molecular formula, which will be equal to C3O3H6.

The term measurement has to do with the process of obtaining the value of a quantity. There are several units that could be used in measurement but the SI unit is the internationally accepted unit of measurement.

Let us now match the words and the vocabulary;

Learn more about error:https://brainly.com/question/19575648

#SPJ1

Answer: Mass number is 15

Explanation:

Mass number of an atom is the sum or total number of protons and neutrons present in the atom. It is represnted by the letter A

The Atomic number (Z) of an atom is defined as the number of protons in an atom and it is equal to the number of electrons present in the atom.

A= n + p

where n is the number of neutrons and p is the number of protons present in the atom

Z = p = e

Where p is the number of protons and e is the number of electrons present in the atom

Z for oxygen atom is 8

So, Z = p = 8 for oxygen atom

If n = 7

then A for oxygen atom with 7 neutrons is given by

A= n + p = 8+7 = 15.

(To know more about Mass Number :  https://brainly.com/question/5502195)

Answer:

A. Refraction

Explanation:

Refraction is the redirection of a wave as it passes from one medium to another.

Answer:

magnesium

Explanation:

The concentration gradients are established and maintained by the sodium potassium - potassium exchange pump is the concentration of potassium (k+) is found higher inside the cell (neuron) and the concentration of sodium (Na+) is found higher outside the cell.

The sodium - potassium pump is an active transport that exchange sodium ions for potassium ions.Active transport is the energy - requiring process of pumping molecules and ions across membranes , against concentration gradient.

To move molecules against the concentration gradient , carrier protein is needed.The Na / K+ pump use the energy of ATP molecule to exchange the ions.

The Na+ / K+ Pump goes through cycles to maintain a negative membrane potential.Three sodium ions exit the cell while two potassium ion enters in the cell for every single ATP consumed.

Thus , the sodium - potassium pump maintains the gradient of high concentration of N+ extracellularly and high level of K+ intracellularly.

To learn more about sodium potassium pump here

https://brainly.com/question/28504043

#SPJ4

The given element has 18(Ar)+1+5=24 electrons i.e., the element is Cr. Thus the Cr atom has 6 unpaired electrons.

In atomic physics and quantum chemistry, the electron configuration refers to how an atom's or molecule's electrons are arranged in their respective orbitals.

The placement of electrons in orbitals surrounding an atomic nucleus is known as electronic configuration, also known as electronic structure or electron configuration.

The electron configuration is used to describe an atom's ground state orbitals, but it may also be used to depict an atom that has ionised into a cation or anion by making up for any lost or gained electrons in the orbitals after it.

to learn more about electronic configuration go to -

https://brainly.com/question/26084288

#SPJ4

The given element has 18(Ar)+1+5=24 electrons i.e., the element is Cr.

Thus the Cr atom has 6 unpaired electrons.

What's electronic configuration?

In atomic physics and quantum chemistry, the electron configuration refers to how an atom's or molecule's electrons are arranged in their respective orbitals.The placement of electrons in orbitals surrounding an atomic nucleus is known as electronic configuration, also referred to as electronic structure or electron configuration.

Commonly, the electron configuration is employed to describe the orbitals of an atom in its ground state, but it also can be used to represent an atom that has ionized into a cation or anion by compensating with the loss of or gain of electrons in their subsequent orbitals.

Learn more about electronic configuration:

brainly.com/question/26084288

#SPJ4