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Worksheetschemistry
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
An elements is
a)
a substance that cannot be split into simpler substances
b)
a substance that can be split into simpler substances
2.
Using the following chemical reaction
Hydrogen + Oxygen --> water
Identify the reactant(s).
Hydrogen + Oxygen --> water
Identify the reactant(s).
a)
Hydrogen and Oxygen
b)
water
3.
What kind of change is a phase change?
a)
Physical - it's still the same substance
b)
chemical - it's made of chemicals
4.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
5.
What is a reactant?
a)
The starting substance
b)
The ending substance
6.
How many states of matter are there?
a)
1
b)
2
c)
3
d)
10
7.
Has a definite shape, mass, and volume
a)
solid
b)
liquid
c)
gas
d)
matter
8.
A chemical change happens when...
a)
a substance is changed at the atomic level
b)
bonds are broken and formed
c)
a new substance is made
d)
all of the above!
9.
How do you make a mixture?
a)
By combining 2 or more substances.
b)
By pouring lots of one substance into a cup.
c)
By stirring water
10.
What is the chemical symbol for carbon?
a)
C
b)
Ca
c)
Cn
d)
Crn
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