honors chem reactions

reactant

starting substance in a reaction

product

ending substance in a reaction (arrow Points to this)

synthesis

type of reaction with 1 PRODUCT

decomposition

type of reaction with 1 REACTANT

combustion

type of reaction with O2 as a reactant

single replacement

one element replaces another element in a compound (1 switch)

double replacement

a chemical reaction where two elements in different compounds trade places (2 switches)

synthesis

A+B-->AB

decomposition

AB->A+B

combustion

? + O2 --> CO2 + H2O

single replacement

AB + C --> AC + B

double replacement

AB + CD --> AD + CB

chemical reaction

when one or more substances chemically react to form one or more new substances

coefficient

A number in front of a chemical formula in an equation that indicates how many atoms of each substance involved in a reaction.

aqueous

dissolved in water

(s)

solid

(g)

gas

(l)

liquid

(aq)

aqueous

-->

yields or reacts to produce

4 clues that a chemical change has taken place

odor/bubbles, heat change, color change, precipitate (solid, gas) forms

Law of Conservation of Mass

Matter is not created nor destroyed in any chemical or physical change

net ionic equation

an equation for a reaction in solution showing only those particles that are directly involved in the chemical change

spectator ions

Ions that do not take part in a chemical reaction and are found in solution both before and after the reaction

oxidation

The loss of electrons from a substance involved in a redox reaction.

reduction

gaining of electrons from a substance involved in a redox reaction.

oxidation acronym

LEO (lose electrons oxidation) OIL (oxidation is losing)

reduction acronymn

GER (gain electrons reduction) RIG (reduction is gaining)