ICSE Class 9 Chemistry
Question 13 of 18
Chemical Changes & Reactions — Question 3
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Question Question 3
Give a balanced equation for each of the following types of reactions :
- A direct combination reaction between phosphorus and a neutral gas.
- A soluble salt of lead formed from an insoluble base by double decomposition – neutralization.
- A thermal decomposition reaction of a salt – which results in the formation of nitrogen gas.
- A synthesis reaction between a metal & a non-metal resulting in formation of an insoluble salt of iron.
- A decomposition reaction of a salt which leaves behind a silvery metal.
- 4P + O2 ⟶ 2P2O5
- PbO + 2HNO3 ⟶ Pb(NO3)3 + H2O
- (NH4)2Cr2O7 ⟶ Cr2O3 + 4H2O + N2
- Fe + S ⟶ FeS
- 2AgCl 2Ag + Cl2