Question

1. a) How do you represent chemical changes in chemistry?
b) What should you know to write a chemical equation?
c) How are reactants and products separated in a chemical equation?​

Answer 1

Explanation:

a) change in temp. , colour , state , odure & quantity can be considered as a chemical change

b)we should know state,quantity&temp. at which a chemical change is taking place

c)for eg. H2 + O2 --> 2H2O

THE ARROW IN THE B/W OF 2H2O AND H2+O2 IS USED TO SAPERATE REACTANTS AND PRODUCTS IN A EQUATION

Answer 2

Explanation:

Chemical equation is the shorthand representation of a chemical reaction. The substances before reaction are called reactants and these produced after chemical reaction are products. It is represented as:

Reactants ---------------------------------------> Products.....