Okay, let's complete these chemical reactions. I'll provide the balanced equations and some explanations.
SO3 + LiOH = Li2SO4 + H2O
Balanced equation: SO3 + 2LiOH → Li2SO4 + H2O
Explanation: Sulfur trioxide (SO3) reacts with lithium hydroxide (LiOH) to form lithium sulfate (Li2SO4) and water (H2O). It needs to be balanced to ensure the number of atoms for each element is equal on both sides of the equation.
CrO3 + KOH = K2CrO4 + H2O
Balanced equation: CrO3 + 2KOH → K2CrO4 + H2O
Explanation: Chromium trioxide (CrO3) reacts with potassium hydroxide (KOH) to form potassium chromate (K2CrO4) and water (H2O). Balancing ensures mass conservation.
H3PO4 + N2O5 = 2HNO3 + HPO3
H3PO4 + N2O5 → 2HNO3 + HPO3
Explanation: Phosphoric acid (H3PO4) reacts with dinitrogen pentoxide (N2O5) to produce nitric acid (HNO3) and metaphosphoric acid (HPO3).
Ag2O + HNO3 = AgNo3 + H2O
Balanced equation: Ag2O + 2HNO3 → 2AgNO3 + H2O
Explanation: Silver oxide (Ag2O) reacts with nitric acid (HNO3) to produce silver nitrate (AgNO3) and water (H2O).
CaO + CO2 = CaCO3
Balanced equation: CaO + CO2 → CaCO3
Explanation: Calcium oxide (CaO) reacts with carbon dioxide (CO2) to form calcium carbonate (CaCO3). This is a direct combination reaction.
Fe2O3 + CO = Fe + CO2
Balanced equation: Fe2O3 + 3CO → 2Fe + 3CO2
Explanation: Iron(III) oxide (Fe2O3) reacts with carbon monoxide (CO) to produce iron (Fe) and carbon dioxide (CO2). This is a redox reaction where iron is reduced, and carbon is oxidized.
Fe2O3 + SO3 = Fe2(SO4)3
Balanced equation: Fe2O3 + 3SO3 → Fe2(SO4)3
Explanation: Iron(III) oxide (Fe2O3) reacts with sulfur trioxide (SO3) to form iron(III) sulfate (Fe2(SO4)3).
Na2O + N2O5 = NaNo3
Balanced equation: Na2O + N2O5 → 2NaNO3
Explanation: Sodium oxide (Na2O) reacts with dinitrogen pentoxide (N2O5) to form sodium nitrate (NaNO3).