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Term 3 Quiz 1
Test Description: This is a Quiz to review Stoichiometry as well as types of reactions
Instructions: Answer all questions to get your test result.
1) Write the chemical equation for the Covalent compound Nitrogen Monoxide
A
NO
B
N2O
C
NO2
D
NCO
2) Balance the Equation:____ C3H8 + ____ O2 ⇒ ____ CO2 + ____ H2O
A
1, 2, 3, 4
B
1, 4, 3, 4
C
4, 3, 2, 5
D
1, 5, 3, 4
3) What is the definition for a limiting reactant
A
all reactants are used up in a reaction
B
chemical compound formed when an acid neutralizes a base
C
a reactant that is used up completely in reaction
D
Dissolving of ionic bonds when placed in water
4) What is the definition of a chemical reaction
A
don't tell anyone about the cookie I don't want to share.
B
I have a cookie
C
The material shrinks
D
Bonds are broken or formed
5) What is the molar mass (mass of one mole) of Methane gas CH4?
A
13.008 grams
B
13.069 grams
C
9.032 grams
D
16.042 grams
6) a subscript of (aq) means what
A
It is Solid
B
It is a Liquid
C
It is dissolved in water
D
the sample came from under the sea
7) What is the molar mass of Water
A
18 g/mol
B
42
C
10 g/mol
D
16 g/mol
8) Write the chemical equation for the compound that is formed by reacting lithium with Sulfur
A
Li2S
B
Li5Si
C
LiS2
D
Li2SO4
9) Which of the following is a chemical property
A
Electrical Conductivity
B
Release of pheramones
C
The weight of an object
D
The hardness of an object.
10) How can Water Skeeters Stay on top of Water
A
Waters hydrogen bonds
B
Magnetism
C
They are really Jedi bugs
D
Water Skeeters are not heavy
11) Which of the following types of bonds are the most effective at electrical conductivity?
A
Mechanical
B
Ionic
C
Covalent
D
Metallic
12) Water tends to Dissolve which types of bonds
A
Hydrogen Bond
B
James Bond
C
Ionic Bonds
D
Covalent Bond
13) Ether Alcohol is combusted to make Water and CO2. What is true of the products
A
They have the same properties than the reactants.
B
They have different properties than the reactants.
C
They have the same properties as Alcohol
D
Reactants are the same as products
14) What is the molar mass of Lithium
A
An isosceles triangle
B
22 gram/mol
C
7 gram/mol
D
3 gram/mol
15) If I react 2 moles of Sodium (Na) with 1 mole of Chlorine gas (Cl2) what will my products weigh
A
128 grams
B
23 grams
C
116 gram
D
35 grams
16) Write the chemical equation for the compound that is formed by reacting lithium with Sulfur
A
Li2SO4
B
LiS2
C
Li5Si
D
Li2S
17) Classify the following reaction: 2H2O2 ⇒ 2H2O + O2
A
Single Replacement
B
Combustion
C
Combination
D
Decomposition
18) Classify the following reaction: 2H2 + O2 ⇒ 2H2O
A
Combination
B
Combustion
C
Single Replacement
D
Decomposition
19) Write and balance the chemical reaction for Potassium metal and chlorine gas combine to form potassium chloride.
A
K + Cl ⇒ KCl
B
2 K + Cl2 ⇒ 2 KCl
C
K + Cl2 ⇒ 2 KCl
D
K + 2Cl ⇒ 2 KCl
*select an answer for all questions
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