Unit 4: Chemical Reactions

Learning Objectives:

PSc.2.2.4 Exemplify the law of conservation of mass by balancing chemical equations.

• Use coefficients to balance simple chemical equations involving elements and/or binary compounds.
• Conclude that chemical equations must be balanced because of the law of conservation of matter.

PSc.2.2.5 Classify types of reactions such as synthesis, decomposition, single replacement, or double replacement.

• Classify chemical reactions as one of four types: single replacement, double replacement, decomposition and synthesis. (Neutralization reaction is a type of double replacement reaction.)
• Summarize reactions involving combustion of hydrocarbons as not fitting into one of these four types. Hydrocarbon + oxygen --> carbon dioxide + water