Question

1)CaCO3 + HNO3= Ca(NO3)2+ CO2+ H2O 2) H2SO4 + KOH= K2SO4+ H2O

Answer 1

Ответ:1)CaCO3 +2 HNO3= Ca(NO3)2+ CO2+ H2O

2) H2SO4 +2 KOH= K2SO4+ 2H2O

Объяснение:

Answer 2

It looks like you've provided two chemical equations:

1. Calcium carbonate (CaCO3) reacts with nitric acid (HNO3) to produce calcium nitrate (Ca(NO3)2), carbon dioxide (CO2), and water (H2O).

   Balanced equation: CaCO3 + 2HNO3 -> Ca(NO3)2 + CO2 + H2O

2. Sulfuric acid (H2SO4) reacts with potassium hydroxide (KOH) to yield potassium sulfate (K2SO4) and water (H2O).

   Balanced equation: H2SO4 + 2KOH -> K2SO4 + 2H2O

These equations represent chemical reactions where reactants combine to form products. The coefficients in the balanced equations indicate the stoichiometric ratios between the reactants and products.