Question

9. How will you indicate the following effects in a chemical equation ?
(a) A solution made in water
(b) Exothermic reaction
(c) Endothermic reaction
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Answer 1

Answer:

Explanation:

a) Aqueous solution is indicated by a symbol aq.

b) at the end of this reaction, you will have to write "+heat" or "+heat energy" at the products side

c) at the end of this reaction, you will have to write "+heat" or "+heat energy" at the reactants side.

Answer 2

1.A solution made in water is indicated as 'aq'.

2.An exothermic reaction is indicated by writing "+Heat" or "+Heat energy" or "+Energy" on the products side of an equation.

3.An endothermic reaction is indicated by writing "+Heat" or "+Heat energy" or "+Energy" on the reactants side of an equation.

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