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3 years ago

When water changes state from a liquid to a solid is energy absorbed or lost?

Chemistry

2 answers:

Inessa [10]3 years ago

6 0

Answer:

Matter either loses or absorbs energy when it changes from one state to another. For example, when matter changes from a liquid to a solid, it loses energy. The opposite happens when matter changes from a solid to a liquid. For a solid to change to a liquid, matter must absorb energy from its surroundings.

Explanation:

Brrunno [24]3 years ago

4 0

Answer:

Loses

Explanation:

liquid changes into solid, heat is released. The energy released upon freezing, known as the enthalpy of fusion, is a latent heat, and is exactly the same as the energy required to melt the same amount of the solid.

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What is the balanced equation and type of reaction for: <br> Copper metal+aqueous silver nitrate

Gnesinka [82]

Answer:

Cu(s) + 2AgNO3(aq)→Cu(NO3)2(aq)+2Ag(s)

This chemical equation means:

One mole of solid copper plus two moles of aqueous silver nitrate produce one mole of copper(II) nitrate plus two moles of solid silver.

This is a single replacement reaction in which the metal copper replaces the metal silver.

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2 years ago

Please help with the attached picture question 21, 22, 23

klasskru [66]

Explanation:

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3 years ago

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Korvikt [17]

Answer:

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3 years ago

Why a slow growing forest can have a very low NPP and yet store a massive amount of biomass.

drek231 [11]

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4 years ago

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Gemiola [76]

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