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2 years ago

In cells, ATP temporarily stores

Chemistry

2 answers:

Lera25 [3.4K]2 years ago

7 0

Answer:

Chemical energy obtained from the breakdown of food molecules.

IgorLugansk [536]2 years ago

3 0

A molecule that temporarily stores energy for cellular activity in all living organisms. ATP is composed of an adenine, a sugar molecule, and a chai of three negatively charged phosphate groups. ... A typ of potential energy in which energy is stored in chemical bonds between atoms or molecules.

So the energy from cellular respiration is stored in the bond between the 2nd and 3rd phosphate groups of ATP. When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work.

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Can you use volume to measure out a mole of a gas? Why or why not?

Rashid [163]

The volume of a gas is defined by the volume of its container.

However, given the number of moles, and standard temperature and pressure, you can use the Ideal Gas Law to calculate the volume.

8 0

3 years ago

A student obtains the following data: Mass of empty, dry graduated cylinder: 21.577 g Volume added of NaCl solution: 4.602 mL Ma

klasskru [66]

<u>Answer:</u> The density of NaCl solution is 3.930 g/mL

<u>Explanation:</u>

We are given:

Mass of cylinder, $m_1$ = 21.577 g

Mass of NaCl and cylinder combined, M = 39.664 g

Mass of NaCl, $m_2$ = $(M-m_1)=(39.664-21.577)g=18.087g$

To calculate density of a substance, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

We are given:

Mass of NaCl = 18.087 g

Volume of NaCl solution = 4.602 mL

Putting values in above equation, we get:

$\text{Density of NaCl}=\frac{18.087g}{4.602mL}\\\\\text{Density of NaCl}=3.930g/mL$

Hence, the density of NaCl solution is 3.930 g/mL

7 0

3 years ago

Which of the following is composed of many cells?

vodomira [7]

Answer:

Bacteria

Explanation:

8 0

3 years ago

Question 7-Which of the following is not an acid-base neutralization reaction?

docker41 [41]

Answer:- It is choice D. $H_2SO_4+2NaCl\rightarrow 2HCl+Na_2SO_4$

Explanations:- In general, a neutralization reaction is the reaction of an acid with base to form salt and water.

in first reaction the reaction is taking place between ammonia(a base) and hydrochloric acid(an acid) to form their salt(ammonium chloride). So, it is an acid-base neutralization reaction.

In second reaction, sodium hydroxide(a base) is reacting with acetic acid(an acid) to form their salt(sodium acetate) and water. So, it is an acid-base neutralization reaction.

In third reaction, Nitric acid is reacting with calcium hydroxide(a base) to form a salt(calcium nitrate) and water. So, it is an acid-base neutralization reaction.

In fourth reaction, sulfuruc acid is reacting a sodium chloride(a salt) to give a double replacement reaction. It is not an acid-base neutralization reaction as it's not taking place between an acid and base.

So, the correct choice is D. $H_2SO_4+2NaCl\rightarrow 2HCl+Na_2SO_4$

7 0

3 years ago

Read 2 more answers

I really need help with this assignment

Mumz [18]

Answer:

A. Sublimation of camphor

8 0

3 years ago