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leva [86]
3 years ago
15

How does the Law of Conservation of Mass relate to changes in physical state? How does it relate to chemical changes?

Chemistry
1 answer:
Nana76 [90]3 years ago
8 0
The Law of Conservation of Mass states that matter cannot be created nor destroyed. It can only be transformed from one state or substance to another. This means that this law applies to both physical and chemical changes. In physical changes, the substance before and after the phase change still has the same mass. In chemical changes, the mass of reactants will always have the same mass of products and by-products.
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How much heat is required to vaporize 25g of water at 100*c
ElenaW [278]

Answer:

Heat required = 13,325 calories or 55.75 KJ.

Explanation:

To convert a water to steam at 100 degree celsius to vapor, we have to give latent heat of vaporization to water

Which equals ,

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Where, m is the mass of water present

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Here , m= 25 gram

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Or , Q = 55,750 Joules = 55.75 KJ

so, Heat required = 13,325 calories or 55.75 KJ.

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What does it mean to say B is representing the dominant gene
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