Question

write the balanced equation for the following chemical reaction:
1.Hydrogen+ Chlorine=Hydrogen chloride
2.Barium chloride+ Aluminum sulphate=Barium sulphate+ Aluminium chloride
3.Sodium+Water=Sodium Hydroxide+ hydrogen

Answer 1

Hydrogen chloride may be formed by the direct combination of chlorine (Cl2) gas and hydrogen (H2) gas; the reaction is rapid at temperatures above 250° C (482° F). The reaction, represented by the equation H2 + Cl2 → 2HCl, is accompanied by evolution of heat and appears to be accelerated by moisture.

Following steps need to be followed while balancing a chemical equation 1. Write down your given equation. 2. Write down the number of atoms that you have on each side of the equation. 3. Balance atoms of each element on both sides of the reaction. 4. Always leave hydrogen and oxygen for last to balance. 5. Balance the hydrogen atoms lastly followed by balancing of oxygen atoms. Given equation is un balanced: BaCl2 + Al2(SO4)3 → BaSO4 + AlCl3 Balance the Aluminium atoms on both sides by multiplying with suitable coefficient. BaCl2 + Al2(SO4)3 → BaSO4 + 2AlCl3 Balance Chlorine atoms on both sides by multiplying with suitable coefficient. 3BaCl2 + Al2(SO4)3 → BaSO4 + 2AlCl3 Balance Barium atoms on both sides by multiplying with suitable coefficient. 3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3 Balanced equation: 3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3

Sodium metal reacts rapidly with water to form a colourless solution of sodium hydroxide (NaOH) and hydrogen gas (H2). Now as per the law of conservation of mass, mass is neither created nor destroyed in a chemical reaction. So, the equation should be balanced.

Answer 2

I think it's easy to understand you