Chemistry Essentials Writing Equations Worksheet More Practice Name: ___KEY___________________ Per.: _____ Date: _________ For each of the following, 1) underline the reactants and circle the products, 2) write a word equation and 3) write a symbolic equation. 1) When dissolved beryllium chloride reacts with silver nitrate dissolved in n water, aqueous beryllium nitrate and silver chloride powder are made. Aqueous beryllium chloride + aqueous silver nitrate aqueous beryllium nitrate + solid silver chloride BeCl2(aq) + AgNO3(aq) Be(NO3)2(aq) + AgCl(s) 2) When liquid isopropanol (C3H8O) burns in oxygen gas, carbon dioxide gas and liquid water are produced. liquid isopropanol (C3H8O) + oxygen gas carbon dioxide gas + liquid water C3H8O(l) + O2(g) CO2(g) + H2O(l) 3) When dissolved sodium hydroxide reacts with sulfuric acid, aqueous sodium sulfate and water are formed. aqueous sodium hydroxide + sulfuric acid aqueous sodium sulfate + water NaOH(aq) + H2SO4(aq) Na2SO4(aq) + H2O(l) 4) When fluorine gas is put into contact with calcium metal at high temperatures, calcium fluoride powder is created. Fluorine gas + solid calcium solid calcium fluoride F2(g) + Ca(s) CaF2(s) 5) When hydrogen gas and oxygen gas react, they form liquid water. hydrogen gas + oxygen gas react → liquid water H2(g) + O2(g) → H2O(l) 6) Iron metal reacts with aqueous lead(II) sulfate to form aqueous iron(II) sulfate and lead metal. Solid iron + aqueous lead(II) sulfate → aqueous iron(II) sulfate + solid lead Fe(s) + PbSO4(aq) → FeSO4(aq) + Pb(s) 7) Phosphoric acid and aqueous calcium hydroxide react to form a calcium phosphate precipitate and liquid water. Phosphoric acid + aqueous calcium hydroxide → solid calcium phosphate + liquid water. H3PO4(aq) + Ca(OH)2(aq) → Ca3(PO4)2(s) + H2O(l) 8) Nitrogen gas and oxygen gas react to form gaseous dinitrogen pentoxide. Nitrogen gas + oxygen gas → gaseous dinitrogen pentoxide N2(g) + O2(g) → N2O5(g) 9) Aqueous potassium iodide reacts with bromine to form aqueous potassium bromide and iodine. Aqueous potassium iodide + bromine →aqueous potassium bromide + iodine. KI(aq) + Br2(l) → KBr(aq) + I2(s) 10) Nitrogen gas and hydrogen gas react to form gaseous nitrogen trihydride. Nitrogen gas + hydrogen gas →gaseous nitrogen trihydride. N2(g) + H2(g) → NH3(g) 11) Solutions of magnesium nitrate and potassium phosphate react to form solid magnesium phosphate and a solution of potassium nitrate. Aqueous magnesium nitrate + aqueous potassium phosphate →solid magnesium phosphate + aqueous potassium nitrate. Mg(NO3)2(aq) + K3PO4(aq) → Mg3(PO4)2(s) + KNO3(aq) 12) When placed in liquid water, sodium metal reacts to produce aqueous sodium hydroxide and hydrogen gas. Liquid water + sodium metal →aqueous sodium hydroxide + hydrogen gas H2O(l) + Na(s) → NaOH(aq) + H2(g) .