Question

Which is the balanced formula and correct state symbol for the reaction: Potassium carbonate + calcium hydroxide gives potassium hydroxide + calcium?

A) K₂CO₃(s) + Ca(OH)₂(aq) → 2KOH(aq) + CaCO₃(s)
B) K₂CO₃(aq) + Ca(OH)₂(aq) → 2KOH(aq) + CaCO₃(s)
C) KCO₃(s) + CaOH(aq) → KOH(aq) + CaCO₃(s)
D) KCO₃(aq) + Ca(OH)₂(s) → KOH(aq) + CaCO₃(s)

Answer 1

The balanced formula and correct state symbol for the reaction Potassium carbonate + calcium hydroxide gives potassium hydroxide + calcium is option B) K₂CO₃(aq) + Ca(OH)₂(aq) → 2KOH(aq) + CaCO₃(s).

Step-by-step explanation:

The balanced formula and correct state symbol for the reaction Potassium carbonate + calcium hydroxide gives potassium hydroxide + calcium is option B) K₂CO₃(aq) + Ca(OH)₂(aq) → 2KOH(aq) + CaCO₃(s).

In this reaction, the potassium carbonate (K₂CO₃) and calcium hydroxide (Ca(OH)₂) react to form potassium hydroxide (KOH) and calcium carbonate (CaCO₃).

The state symbols (s for solid, l for liquid, g for gas, aq for aqueous solution) indicate the physical state of each substance. In this case, the reactants potassium carbonate and calcium hydroxide are both in aqueous solution, while the products potassium hydroxide and calcium carbonate are solid.