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