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Redox
Acids
Stoichiometry I
Chemical Equations
Chemical Reactions
100
What does oxidation and reduction indicate in terms of the electrons?
What is oxidation is losing electrons and reduction is gaining electrons?
100
HBr, HCl, and HF are considered _______ acids.
What is binary?
100
The number of grams in one mole of hydrogen gas
What is 2?
100
Those substances in a chemical reaction that exist before the reaction takes place
What are reactants?
100

What type of reaction is this: 2Ca + O2 --> 2CaO?

What is synthesis?
200

What are the oxidation numbers of each element in KClO3?

What are K=+1, Cl=+5, and O=-2?

200

Name the following acids:

-HF

-HBr

-HCl

What are hydrofluoric acid, hydrobromic acid, and hydrochloric acid?
200
The number of moles in 33.0 g of hydrogen gas?
What is 16.5?
200
Those substances in a chemical reaction that exist after the reaction is finished
What are products?
200

What type of reaction is this and how would you balance this:  H2 + O2 -->  H2O

What is synthesis & 2H2 + O2 --> 2 H2O?

300

Identify which is being oxidized and reduced:

Zn + HCl   -->    ZnCl2 + H2

What are Zn= oxidized and H=reduction?

300

Name the following oxyacids:

-H2SO3

-H2CO3


What are sulfurous acid and carbonic acid?
300

In this equation: 2 C2H2 + 5 O2 --> 4 CO2 + 2 H2O, if you have 8.3 mol of oxygen, how many moles of water would you produce?

What is 3.3 mol of H2O?

300
Number placed in front of each formula in a balanced chemical equation
What is a coefficient?
300

What type of reaction is this:

Cu + HNO3 --> CuNO3 + H2?

What is single replacement?
400

Daily Double!! Write the half reactions for the following equation:

Cl2 + 2NaBr --> 2NaCl + Br2

Oxidation: 2Br-1 --> Br2 + 2e-

Reduction: Cl2 + 2e- --> 2Cl-1

400

Daily Double!!!!

Name the following acids:

-HNO2

-H2S

-H3PO4

What are nitric acid, hydrosulfuric acid, and phosphoric acid?
400

In this equation: 2 PbS + 3 O2 --> 2 SO2 + 2 PbO, if 24.3 g of oxygen reacts with lead (II) sulfide, how much lead (II) oxide would be produced?

What is 113 g PbO?
400
Placing coefficients in a chemical equation to ensure that the number of each type of atom in the reactants is equal to the number in the products
What is balancing an equation?
400

This is what kind of reaction:

2 C2H2 + 5 O2  4 CO2 + 2 H2O

What is combustion?
500

Write the half reactions for this equation: Pb + CuCl2 --> PbCl2 + Cu

What are: Oxidation: Pb --> Pb+2 +2e-

Reduction: Cu+2 +2e- --> Cu

500

Name the following acids:

-acetic acid

-phosphorous acid

-chlorous acid

-nitric acid


HC2H3O2

H3PO3

HClO2

HNO3

500

This piece of information is ALWAYS needed when performing any stoichiometric problem and requires you to look at the chemical equation

What is a mole ratio?

500
The symbol placed above the reaction arrow to indicate that energy/heat is needed for the reaction to occur
What is delta, Δ?
500
Name at least four indications that a chemical reaction has occurred
What are temperature change, gas production, new odor, light, formation of a precipitate, or color changes?