Question

e. Write balanced equation and indicate one main observation.
i. Lead nitrate heated.
ii. Ammonium dichromate crystals heated.
iii. Black manganese
dioxide is heated with conc. HCI. iv. Conc.
HNO3 heated with white phosphorous.
v. Conc H2SO dropped on blue vitriol crystals.​

Answer 1

Answer:

here is ur answer.

Explanation:

1). Pb(NO3)2 - 2PbO + 4NO2 + O2

Observation- lead oxide is formed.

2). (NH4)2Cr2O7 - N2 + Cr2O3 + H2O

observation - chromium oxide is formed.

3). MnO2 + 4HCl - MnCl2 + 2H2O + Cl2

Observation - Manganese chloride is formed.

4). P + 5HNO3 - H3PO4 + 5NO2 + H2O

Observation - Nitrogen dI oxide is formed.