Chemistry Equation Test

Types of Reactions

100

Synthesis

Element + Element = Element

200

Decomposition

Element = Element + Element

300

Single Replacement

Compound + Element = Compound + Element

400

Double Replacement

Compound + Compound = Compound + Compound

500

Neutralization

Acid + Base = Compound + Water

T.O.R P2 + Reaction Tellers

100

Combustion

Compound + Oxygen = Carbon + Water

200

Temperature

Increases or Decreases without adding heat or cooling the reaction

300

Color Change

Without adding any dye

400

Gas Forms

Without causing a liquid to boil from external energy

500

Solid Forms

A precipitate appears in the solution where there was no solid previously or a new solid replaces the original solid

Types of Equations + Identification

100

Word Equation

Uses words 

Ex: Lead (II) nitrate and sodium iodide react to make lead (II) iodide and sodium nitrate

200

Skeletal Equation

Uses regular subscripts

Ex: Pb(NO3)2 + NaI = PbI2 + NaNO3

300

Balanced Equation

Uses Mole Ratios

Ex: Pb(NO3)2 + 2 NaI = PbI2 + 2 NaNO3

400

What does (s), (aq), (l), and (g)  stand for?

Solid (s), Aqueous (aq), Liquid (l), and Gas (g)

500

What do the coefficients in front of NaCl and CaCO₃ indicate?

CaCl₂ (aq) + Na₂CO₃ (aq) → CaCO₃ (s) + 2NaCl (aq)

The mole ratio of substances in the reaction

Balancing Practice

100

_N2 + _O2 = _N2O5

(2) N2 + (5) O2 = (2) N2O5

200

_C2H6 + _O2 = _CO2 + _H2O

(1) C2H6 + (2) O2 = (2) CO2 + (3) H2O

300

_KClO3 = _KCI + _O2

(2) KClO3 = (2) KCl + (3) O2

400

_HCl + _Ca(OH)2 = _CaCl2 + _H2O

(2) HCl + (1) Ca(OH)2 = (1) CaCl2 + (2) H2O

500

_C4H10 + _O2 = _CO2 + _H2O

(2) C4H10 + (13) O2 = (8) CO2 + (10) H2O

Reaction Practice

100

N2 + O2 = N2H5

Synthesis

200

C2H6 + O2 = CO2 + H2O

Combustion

300

BaCl2 + Na2SO4 = BaSO4 + NaCl

Double Replacement

400

KClO3 = KCl + O2

Decomposition

500

HCl + Ca(OH)2 = CaCl2 + H2O

Neutralization