2 years ago

Which of the following is not a clue that a chemical reaction has taken place? *

Chemistry

1 answer:

DaniilM [7]2 years ago

7 0

Answer:

A pure solid is heated and turns into a pure liquid.

Explanation:

No colour change recorded, only change of state, hence this is a physical change - physical changes I.e. change of state and temperature are not chemical reactions.

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We are given a compound named ammonium nitrate having formula $NH_4NO_3$

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To calculate the mole ratio, we write the ratio of their subscripts. For this compound, it is:

$N:H:O::2:4:3$

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