Question

Please balance equations. I will be grateful if you help me. Equations:
1. Iron pyrites+oxygen=ferric oxide+ sulphur dioxide

2. Potassium permanganate+ hydrochloric acid=potassium chloride+ magnesium chloride+ chlorine+water

3. Aluminum sulphate+ sodium hydroxide=sodium sulphate+sodium meta aluminate+water



In the above equations(=) sign means 'gives'.

Answer 1

1. 4FeS2 + 11O2 ------› 2Fe2O3 + 8O2

2. 2KMnO4 + 16HCl ------› 2MnCl2 + 2KCl + 5Cl2
+ 8H2O

3. Al2(SO4)3 + 8NaOH ------› 3Na2SO4 +
2NaAlO2 + 4H2O

I hope this will be sufficient to help you.