Chemical Reactions

Reactants Before the reaction takes place

Products After the chemical took place

Writing equations Symbols most commonly used

Word equations Solid sodium reacts with a solution of aluminum chloride to produce aqueous sodium chloride and aluminum metal. Fluorine gas is bubbled through a solution of sodium bromide to produce bromine gas and aqueous sodium fluoride. Potassium chloride and water are produced from solutions of potassium hydroxide and hydrochloric acid.

Balancing equations 1) ____ Na3PO4 + ____ KOH  ____ NaOH + ____ K3PO4 All reactions follow law of conservation of mass. Use coefficients to balance number of atoms on each side of the reaction. Example: 1) ____ Na3PO4 + ____ KOH  ____ NaOH + ____ K3PO4 2) ____ MgF2 + ____ Li2CO3  ____ MgCO3 + ____ LiF 3) ____ P4 + ____ O2  ____ P2O3

Write the balanced chemical equation for the following: 1.) Solutions of calcium nitrate and sodium hydroxide react to produce sodium nitrate in solution with solid calcium hydroxide. 2.) Copper (II) chloride is reacted with solid aluminum metal. Copper metal is produced as a solid and aluminum chloride is left in solution.