Chemistry Review

Chemistry Review

Barlaz

Polyatomic ions:

phosphate PO4-3 sulfate SO4-2 nitrate NO3-1

carbonate CO3-2 hydroxide OH -1 ammonium NH4+1 acetate C2H3O2-1

diatomics: H2 Cl2 Br2 I2 O2

bases: Mg(OH) 2 NaOH NH4OH KOH Al(OH)3

acids: H2CO3 H2SO4 HCl HI H3PO4 HNO3 HC2H3O2

Text:

Check assignment sheets for pages: 15, 16, 17, selections from 19, 20 and 21 sections 1-3, Chapter 23, sections 1-2

Topics:

·  Drawing the atom

·  Dot structures

·  Periodic Table-Atomic number (protons), electrons, average atomic mass, neutrons

·  Difference between metal and non-metal

·  Subscripts on atoms in a formula, how many of each atom there are

·  Writing formulas for ionic compounds

·  Naming formulas for ionic compounds

·  Oxidation number

·  Types of bonds: ionic, covalent, metallic

·  Parts of the atom and what is their charge

·  Parts of the periodic table

·  Trends in the periodic table

·  Heat vs. temperature, difference

·  Gas properties-combustion lab

·  Writing ionic formulas

·  Balancing chemical equations

·  Identify each of the five types of reactions

·  Evidence that a reaction is taking place

·  Predicting the products from the reactants in a double or single replacement reaction

·  Reactions of Ions Lab, including carbonate chemistry

·  neutralization

·  definition of acid and base

Practice

element / Atomic number(p) / Mass number(p+n) / Number electrons / (average) Atomic mass / Number neutrons
Na / 24
31 / 39
Zn / 65
20 / 21

Fill in the formulas:

ions / O-2 / NO3-1 / PO4-3 / Cl-1 / OH-1
Lithium
sodium
potassium
calcium
magnesium
NH4+

I. Given the type of reactions, predict the outcomes when the reactant are combined.

double replacement: Na2CO3+ CaCl2 à ______

single replacement Mg + HCl à ______

double replacement: Pb(NO3 )2 + KOH à______

single replacement Ag(NO3 )2 + Cu+2 à ______

combustion: C3H8 + O2 à ______

II. Balance the following

1)  Fe + O2 à Fe2O3

2)  HCl + Ba(OH)2 à BaCl2 + H2O

3)  Si O2 + HF à SiF4 + H2O

III. Write the products that will result from the following reactants. Suggestion: Before you start, always look at the equation and label in a way that helps you remember how to figure out the products.

1) NH4OH + H3PO4 à ______

2) CH4 + O2 à ______

3) Na + H2SO4à ______

4) Ca (NO3) 2 + Na 2CO3 à ______

5) HI + Ca(OH) 2 à ______