Question

what are the rules for writing chemiCal change​

Answer 1

Explanation:

In a chemical equation, the reactants are written on the left, and the products are written on the right.

The coefficients next to the symbols of entities indicate the number of moles of a substance produced or used in the chemical reaction.

Answer 2

Answer⭐

We know that,

The Chemical symbols are abbreviations used for chemicals elements and functional groups.

Elements symbol for the elements consists of one or two letters.

The rules are:

• First letter of any elements should be in upper case.

• second letter of any Element should be in lower case.

for example:

Hydrogen= H

Helium= He

Lithium= Li

Boron= B

Carbon= C

And much more elements!