Convert the following descriptions into balanced equations:(a) In a gaseous reaction, hydrogen sulfide burns in oxygen toform sulfur dioxide and water vapor.(b) When crystalline potassium chlorate is heated to just aboveits melting point, it reacts to form two different crystalline com-pounds, potassium chloride and potassium perchlorate.(c) When hydrogen gas is passed over powdered iron(III) oxide,iron metal and water vapor form.(d) The combustion of gaseous ethane in air forms carbon diox-ide and water vapor.(e) Iron(II) chloride is converted to iron(III) fluoride by treat-ment with chlorine trifluoride gas. Chlorine gas is also formed.

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".