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kakasveta [241]
3 years ago
11

Which two body systems are most affected when a person is participating in a marathon running event?

Chemistry
1 answer:
makvit [3.9K]3 years ago
4 0

Answer:

d. skeletal and muscular

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B. Earth’s tilt

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Find the number of molecules equal to 1.46 molecules of CaCl2
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8.7892x10^23

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When a solution forms, what interactions between particles are involved? Which are exothermic? Which are endothermic?
Blizzard [7]

Answer:

Explanation:

There are three types of interactions involved between the particles when solution are formed.

1 : Solute - solute interaction:

2 : Solute - solvent interaction:

3 : Solvent - solvent interaction:

1 : Solute - solute interaction:

It is the inter-molecular attraction between the solute particles.

2 : Solute - solvent interaction:

It involve the inter-molecular attraction between solvent and solute particles.

3 : Solvent - solvent interaction:

It involve the intermolecular attraction between solvent particles.

Solutions are formed if the intermolecular attraction between solute particles are similar to the attraction between solvent particles.

Exothermic process:

The process will exothermic when solute solvent bonds are formed with the release of energy and energy required to brake the solute-solute particles and solvent solvent particles are less.

Endothermic process:

The process will be endothermic when energy required to break the solute-solute particles and solvent solvent particles are higher than energy released when solute solvent bonds are formed .

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3 years ago
a gas that exerts a pressure of 151 mm Hg in a container with a volume of _____ L will exert a pressure of 166 mm Hg when transf
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