Chemical Reaction - when one or more substances are rearranged to form different substances

Products - the substances that are formed from the reaction

Reactants - the substances that produce the products, they are the starting materials

Word equations - using words to represent the equationex.

Skeleton equations - uses chemical formulas to represent the equation

ex.

Chemical equation - a statement that uses chemical formulas to show the identities and relative amounts of the substances involved in a chemical reaction

Balancing Chemical Equations

Coefficient - number written in front of a reactant or product, usually whole numbers, and represent how many moles of the substance there is

Steps to balance an equation:1 - write the skeleton equation for the reaction2 - count the atoms of the elements in the reactants3 - count the atoms of the elements in the products4 - Change the coefficients to make the number of atoms of each element equal on both sides of the equation5 - write the coefficients in their lowest possible ratio6 - check your work

GENERAL CHEMISTRY NAME__________________________ Hour _____Chapter 8 Homework #2 For each of the following, a) write the formula of each substance and b) write a balanced equation c) indicate the type of reaction on ___

1) Magnesium bromide + Sodium sulfate yields Magnesium sulfate + Sodium bromide. _____

2) Barium chloride + Potassium sulfite yields Barium sulfite + Potassium chloride. _____

3) Calcium carbonate + Hydrochloric acid yields Calcium chloride + Carbon dioxide + water. _____

4) Magnesium + Oxygen gas yields Magnesium oxide. _____

5) Phosphorus + Iodine yields Phosphorus triiodide. _____

6) Calcium hydroxide + Ammonium sulfate yields Calcium sulfate + Ammonium hydroxide. _____

7) Iron III chloride + Ammonium sulfide yields Iron III sulfide + Ammonium chloride. _____

8) Silver nitrate + Zinc chloride yields Silver chloride + Zinc nitrate. _____

9) Lead + Sulfuric acid yields Lead II sulfate + Hydrogen gas. _____

10) Iron + Copper I nitrate yields Iron II nitrate + Copper. _____

11) Copper + Silver nitrate yields Silver + Copper II nitrate. _____

12) Antimony + Fluorine gas yields Antimony III fluoride. _____

13) Barium acetate + Magnesium bisulfite yields Barium bisulfite + Magnesium acetate. _____

14) Sodium bromide + Chlorine gas yields Sodium chloride + Bromine. _____

15) Ferric sulfate + sodium carbonate yields Ferric carbonate + Sodium sulfate. _____

16) Lithium sulfite + Acetic acid yields Lithium acetate + Sulfurous acid. _____

17) Perchloric acid + Copper I carbonate yields Copper I perchlorate + Carbon dioxide + water. _____

18) Silver sulfate + Aluminum chlorate yields Silver chlorate + Aluminum sulfate. _____

19) Sodium hydroxide + Carbon dioxide yields Sodium bicarbonate. _____

20) Lead IV chloride + Calcium oxide yields Lead IV oxide + Calcium chloride. _____

Reactions in Aqueous Solutions

Solute -

Solvent -

Aqueous - When the solvent is Water

Precipitate - a solid that is produced in a chemical reaction

Ex. NaOH + CuCl2 ------> NaCl + Cu(OH)2

Complete ionic equation - an ionic equation that shows all of the particles in a solution

Spectator ions - ions that do not participate in a reaction, they are usually not shown in an equation

net ionic equations - equations that include only the particles that participate in the reaction

ex.

TEST Review -

Vocab -

aqueous solution precipitatechemical equation productchemical reaction reactantcoefficient single-replacement reactioncombustion reaction spectator ioncomplete ionic equation synthesis reactiondecomposition reaction solutedouble-replacement reaction solventnet ionic equation

Balancing Equations -

Reactivity