Question

SiO2+CaO=? NH3+O2=? Si+H2O=?

Answer 1

CaO+SiO2 = CaSiO3(осадок)
NH3 +O2=NO + H2O

Answer 2

SiO2 +CaO = CaSiO3 4NH3+3O2 =2N2+6 H2O Si+H2O = SiO2 +2H2

Answer 3

Here are the chemical reactions for the given equations:

1. SiO2 + CaO → CaSiO3 This is a reaction between silicon dioxide (SiO2) and calcium oxide (CaO) to form calcium silicate (CaSiO3).

2. NH3 + O2 → NO + H2O This is a combustion reaction between ammonia (NH3) and oxygen (O2) to form nitric oxide (NO) and water (H2O).

3. Si + H2O → SiO2 + H2 This is a reaction where silicon (Si) reacts with water (H2O) to form silicon dioxide (SiO2) and hydrogen gas (H2).