CHEMICAL

REACTIONS

LEVEL 1 –

CH

APTER 10

Reactant A

Reactant B

Product(s)

CHEMICAL REACTIONS:Reactants → products

Symbols:

(s)

(l)

(g)

(aq)

Δ

Catalyst

Descriptive sentence → Word Equation (Names → Formulas) → Chemical Equation

BALANCING CHEMICAL EQUATIONSExamples:

A. Ca + H3PO4 Ca3(PO4)2 + H2

B. KBrO3 KBr + O2

C. (NH4)2CO3 + NaOH Na2CO3 + NH3 + H2O

5 TYPES OF CHEMICAL REACTIONS:

1. Combination (Synthesis): only 1 product

2. Decomposition: only 1 reactant

3. Single-Replacement

Activity Series of Metals

Reactivity Trend in Periodic Table for Halogens

4. Double-Replacement

5. Combustion

Complete:

Incomplete:

WILL SOMETHING PRECIPITATE?Always soluble (aq): ionic compounds containing…

group 1 alkali metals, ammonium, nitrate, chlorate

Soluble EXCEPT:

chloride = soluble, unless containing Pb, Ag, Hg “the big three”

sulfate = soluble, unless containing Pb, Ag, Hg, Ca, Sr, Ba

NOT soluble (unless meets conditions above):

carbonate, phosphate, chromate, sulfide, hydroxide

TEST REVIEW: Matching / Multiple ChoiceWord / FormulaBalance / Type

Given: Periodic table, activity series of metals, solubility rules

Cu(s) + AgNO3(aq) → copper (II)…Type?Balance?

Lead (II) sulfate + nitric acid → Predict states?Type?Balance?