Chapter 7 in Review

• Chemical equations: Chemical equations must be balanced to reflect the conservation of matter in nature.  

• Aqueous solutions and solubility: If a substance dissolves in water, it is soluble.

• Some specific types of reactions are precipitation reaction, acid–base reaction, gas evolution reaction, redox reaction, and combustion reaction.

• Chemical reaction classifications are synthesis reaction, decomposition reaction, single-displacement reaction, and double-displacement reaction.