Names and Terms
Balancing Chemical Equations
Chemical Reactions
Mass, Moles and Molar Mass
Anything Goes!
100
_________ are the species present before the reaction.
Reactants
100

Balance the following equation: N2 + O2 → N2O5. What is the coefficient of N2O5?

(2 N2 + 5 O2 → 2 N2O5)

100

What type of reaction is...

CH4 +2O2 -> CO2 + 2H2O

Combustion Reaction

100
What is the molar mass of ammonium carbonate, (NH4)2CO3?
96.09 g/mol
200

A __________ tells us the materials needed and the products formed in a chemical reaction. It also represents the sentence in the language of chemistry. This communicates a chemical change using symbols and formulas to represent the elements and compounds involved in a chemical reaction.

Chemical equation

200

Magnesium chloride (MgCl) and sodium hydroxide (NaOH) react to form magnesium hydroxide Mg(OH)2 and sodium chloride (NaCl). What is the balanced chemical equation for this reaction?

MgCl2 + 2 NaOH → Mg(OH)2 + 2 NaCl

200

Reaction that breaks down compounds

Decomposition reaction

200
What is the mass of 9.2 x 10E-4 mol of Argon?
0.037 g Ar
200

Write the net ionic equation for the following reaction.

FeCl2 (aq) + Zn (s) → ZnCl2 (aq) + Fe (s)

Fe2+ (aq) + 2 Cl- (aq) + Zn (s) → Zn2+ (aq) + 2 Cl- (aq) + Fe (s)

Fe2+ (aq) + Zn (s) → Zn2+ (aq) + Fe (s)

300
_________ are numbers used to balance a chemical equation.
Coefficients
300

Copper (II) sulfate reacts with Zn metal to produce Cu metals and Zinc sulfate. What is the balanced chemical equation for this reaction?

CuSO4 + Zn → Cu + ZnSO4

300

What type of reaction is this?

CaI2 (s) + Cl2 (g) → CaCl2 (s) + I2 (s)

Single-Displacement reaction

300
What is the mass of 0.443 moles of hydrazine, N2H4?
14.2 g
400
This area of chemistry examines the quantities of substances consumed and produced in chemical reactions.
Stoichiometry
400

Hydrogen gas and chlorine gas react to form Hydrochloric Acid (HCl). What is the balanced chemical equation for this reaction?

H2 + Cl2 → 2 HCl

NOTE: Hydogen gas and chlorine gas are diatomic molecules.

400

What kind of reaction is this ?
Na2SO4 (aq) + SrCl2 (aq) → SrSO4 (s) + 2 NaCl (aq)

Double-Displacement Reactions

400
How many moles of sucrose, C12H22O11, are in a 25 g sample of sucrose?
0.073 mol
400

Write the net ionic equation for the following reaction.

Na2SO4 (aq) + SrCl2 (aq) → SrSO4 (s) + 2 NaCl (aq)

2 Na+ (aq) + SO42- (aq) + Sr2+ (aq) + 2 Cl- (aq) → SrSO4 (s) + 2 Na+ (aq) + 2 Cl- (aq)


Sr2+ (aq) + SO42- (aq) → SrSO4 (s)

500
A _______ is defined as the amount of a substance that contains 6.02 x 10E23 particles.
Mole
500

What is the coefficient of O2 after balancing the following equation: C2H6 + O2 → H2O + CO2

7

(2 C2H6 + 7 O2 → 6 H2O + 4 CO2)

500

What would you call when a solid salt dissolves, the (+) ends of water molecules

associate with the anion, and the (-) ends of water molecules associate with the cation

Ionic equation

500
Our bodies synthesize protein from amino acids. One of these amino acids is glycine, which has the molecular formula C2H5O2N. How many moles of glycine are contained in 28.35 g of glycine?
0.378 mol glycine
500

What is the official animal of Scotland?

Unicorn