Balance the following equations $$P + HNO_3 \rightarrow NO_2 + H_2O + H_3PO_4$$
$$P + 5HNO_3 \rightarrow 5NO_2 + H_2O + H_3PO_4$$
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.
Write a balanced chemical equation for each of the following reactions and also classify them. (b) A piece of sodium metal is added to absolute ethanol to form sodium ethoxide and hydrogen gas.
On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas and a brown gas X is formed. Write a balanced chemical equation of the reaction.
State whether the following statement is true or false: A chemical equation can be balanced easily by altering the formula of a reactant or product.
Correct and balance the following equation: $$Ca+H_2O\rightarrow CaOH+H$$
Correct and balance the following equation: $$N+H_2 \rightarrow NH_3$$
Aluminium hydroxide reacts with sulphuric acid to form aluminium sulphate and water. Write a balanced equation for this reaction.
Balance the following chemical reaction: $$MnO_2+HCl \rightarrow MnCl_2+Cl_2+H_2O$$
Write the balanced chemical equations of the following word equation: Aluminium carbide + water → aluminium hydroxide + methane
Write the balanced chemical equation for the following word equation: Potassium permanganate + Hydrochloric acid → Potassium chloride + Manganese chloride + Chlorine + Water