Question

Give a balanced equation for each of the following types of reactions:
1. A direct combination reaction between phosphorus and a neutral gas.
2 A soluble salt of lead formed from an insoluble hace hu double doonmn​

Answer 1

• We take the natural gas as oxygen so, we get

PHOSPHORUS PENTOXIDE

P4+502---------->2P2O5

sorry I don't understand your second Question

But if you mean that

a soluble salt of lead form an insoluble base by double decomposition neutralisation

so your answer is

• PBO+HNO3-------->PB(NO3)2+H2O

Note--> PBO is insoluble base and HNO3 is an acid...... PB(NO3)2.....since, due to this reaction only salt and water is formed so this is a neutralisation reaction.

Hope it helps you