balancing chemical equations

Question 1

what is a balanced chemical equation

Answer 1

must contain equal numbers of atoms of each element on both sides of the equation.

Question 2

steps to write word equations

Answer 2

1. chemical formula for each reactant
2. write chemical equations
3. balance chemical equations
4. write state symbols

Question 3

what is on the left side of a chemical equation

Answer 3

The reactant(s)

e.g. 2H₂(g) + O₂(g) → 2H₂O(l)

Question 4

what is on the right side of a chemical reaction

Answer 4

The product(s)

e.g. 2H₂(g) + O₂(g) → 2H₂O(l)

Question 5

how to make chemical equation balanced

Answer 5

1. Write down the chemical formulae of the reactants and products to get the chemical equation.
2. Check the number of atoms of each element in the formulae on both sides of the equation.
   if the equation is not balanced:
3. Add the state symbols to indicate the physical state of each reactant and product.