Science
Write the balanced chemical equations for the following reactions.
(a) Calcium hydroxide + Carbon dioxide ⟶ Calcium carbonate + Water
(b) Zinc + Silver nitrate ⟶ Zinc nitrate + Silver
(c) Aluminium + Copper chloride ⟶ Aluminium chloride + Copper
(d) Barium chloride + Potassium sulphate ⟶ Barium sulphate + Potassium chloride
Related Questions
Translate the following statements into chemical equations and then balance them.
(a) Hydrogen gas combines with nitrogen to form ammonia.
(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
(c) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
Balance the following chemical equations.
(a) HNO3 + Ca(OH)2 ⟶ Ca(NO3)2 + H2O
(b) NaOH + H2SO4 ⟶ Na2SO4 + H2O
(c) NaCl + AgNO3 (aq) ⟶ AgCl + NaNO3
(d) BaCl2 + H2SO4 ⟶ BaSO4 + HCl
Write the balanced chemical equation for the following and identify the type of reaction in each case.
(a) Potassium bromide (aq) + Barium iodide (aq) ⟶ Potassium iodide (aq) + Barium bromide (s)
(b) Zinc carbonate (s) ⟶ Zinc oxide (s) + Carbon dioxide (g)
(c) Hydrogen (g) + Chlorine(g) ⟶ Hydrogen chloride (g)
(d) Magnesium (s) + Hydrochloric acid (aq) ⟶ Magnesium chloride (aq) + Hydrogen(g)
What does one mean by exothermic and endothermic reactions? Give examples?