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3 years ago

In molecules, energy is stored in? Atoms Electrons The Nucleus Bonds

Chemistry

1 answer:

Nikolay [14]3 years ago

4 0

Answer:

Atoms

Explanation:

Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.

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Elements in the same period of the periodic table exhibit similar physical and chemical properties.

Vladimir [108]

Answer:

same valency electrons

Explanation:

example g 1 elements

5 0

3 years ago

A system gains 652 kJ of heat, resulting in a change in internal energy of the system equal to +241 kJ. How much work is done?

levacccp [35]

Answer:

-411 kj

Explanation:

We solve by using this formula

∆U = ∆Q + ∆W

This formula is the first law of thermodynamics

Change in internal energy U = +241

Heat gained by system Q = 652

Putting the value into the equation

+241 = 652 + W

Workdone = 241 - 652

Workdone = -411 kj

Since work done is negative it means that work was done by the system

3 0

3 years ago

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

sweet-ann [11.9K]

Answer:

The physical states that are represented by each graph region are the liquid and the solid, the highest temperature is the liquid and as it freezes it becomes a solid. The particles change because when it's a liquid, it isn't that compact it's just spreading smootly but as it freezes the atoms start to stick together and become compact.

Explanation:

Hope that made sense!

8 0

3 years ago

A student makes the following hypothesis: If the amount of chocolate increases then the cake will taste sweeter. What is the ind

Talja [164]

Answer:

the chocolate

Explanation:

You are changing the amount of chocolate

8 0

3 years ago

Wnich action forms a different chemical substance?

stiks02 [169]

B burning a piece of wood
Ash is a chemical substance not apparent before the chemical change,the fire burning the wood

4 0

4 years ago