Question

1. Define skeletal equation.
2. In a chemical reaction between sulphuric acid & barium chloride solution the white precipitate formed are of :
a) Hydrochloric acid b) Barium chloride
c) Chlorine d) Sulphur
3. It is necessary to balance a chemical equation in order to satisfy the law of :
a) Conservation of motion
b) Conservation of momentum
c) Conservation of energy
d) Conservation of mass
4. Give the ratio in which hydrogen and oxygen are present in water by volume :
a) 1 : 2 b) 1 : 1 c) 2 : 1 d) 1 : 8
5. What happens when copper rod is dipped in iron sulphate solution:
a) Copper displaces iron
b) Blue colour of Copper sulphate solution is obtained.
c) No reaction rakes place.
d) Reaction is exothermic nu​

Answer 1

Answer:

1. A skeleton equation is when your chemical reaction is written with the chemical formulas that represent each substance that takes part in the reaction

2. b) barium cholride

3. c) law of conservation of mass

4. c) 2:1

5. a) copper displaces iron

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