Magnesium ignites, forming magnesium oxide in a dazzling combination reaction. 2Mg(s) + O2(g) → 2MgO(s)
Zinc displaces hydrogen in sulfuric acid, crafting zinc sulfate and liberating hydrogen gas. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)
Iron reacts with steam, yielding iron oxide and releasing hydrogen gas in a decomposition reaction. 3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g)
Calcium oxide combines with water, producing calcium hydroxide, known as slaked lime. CaO(s) + H2O(l) → Ca(OH)2(aq)
Carbon combusts with oxygen, generating carbon dioxide, heat, and light. C(s) + O2(g) → CO2(g)
Hydrogen ignites with oxygen, creating water vapor, heat, and light. 2H2(g) + O2(g) → 2H2O(g)
Methane combines with oxygen, forming carbon dioxide and water vapor, accompanied by heat and light. CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)