WorksheetsScience Study Review
Total questions: 14
Worksheet time: 14mins
Name
Class
Date
1.
What type of reaction is
FeS + FeS + 2 HCl → FeCl2 + H2S
FeS + FeS + 2 HCl → FeCl2 + H2S
a)
Chemical
b)
Physical
2.
Chemistry is
a)
Dumb
b)
A characteristic of a substance that can be observed without changing the substance into another substance
c)
The study of the properties of matter and how matter changes
d)
The best thing in the world other than Coach Crane
3.
Anything that takes up space and has mass is considered
a)
A physical object
b)
Physical change
c)
Chemical object
d)
Matter
4.
What happens when chemical bonds break and new bonds form?
a)
Physical Change
b)
Chemical Change
c)
Nothing
d)
A chemical bond breaks and forms again
5.
The substances listed on the left side of a chemical equation are the
a)
Products
b)
Chemical Equations
c)
Reactants
d)
Bonds
6.
CaCO3 represents a
a)
Chemical
b)
Chemical Reaction
c)
Physical
d)
Physical Change
7.
What does the principle of the conservation of mass state?
a)
Principles
b)
That matter is not created or destroyed during a chemical reaction.
c)
Matter is created and destroyed the same
d)
That mass should be conserved
8.
A chemical equation that shows the same number of each kind of atom on both sides of the equation is said to be
a)
The product
b)
A new Chemical
c)
Balanced
d)
Absurd
9.
A chemical reaction that absorbs energy in the form of heat is described as
a)
Endothermic
b)
Exothermic
c)
Exodothermic
d)
Endxothermic
10.
A rapid reaction between oxygen and fuel is known as
a)
Chemical Reaction
b)
A reaction
c)
Fire
d)
Combustion
11.
The production of gas when an eggshell is add to a sample of vinegar is considered to be a
a)
Chemical Change
b)
Physical Change
12.
Balance the chemical equation by adding a coefficient where it is needed.
KClO3 → KCl + O2
KClO3 → KCl + O2
a)
2KClO3 = 2KCl + 3O2
b)
2KcLO3 = 2KcL+302
c)
I don't understand the question
d)
3KClO3 = 3KCl + 3O2
13.
In the chemical equation below, MgCl2 and H2 are called the ______? 2 Mg + HC1 → MgCl2 + H2
a)
Products
b)
Reactants
c)
Chemicals
d)
Parts of The Equation
14.
In the chemcial equation below, 2Mg and HCl are called the 2 Mg + HC1 → MgCl2 + H2
a)
Chemicals
b)
Products
c)
Rectants
d)
Parts of The Equation
100 %
