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WorksheetsUnit 7 EOG Questions P.1.1, P.1.2, P.1.3, P.1.4
Total questions: 9
Worksheet time: 18mins
Name
Class
Date
1.
Which is the BEST example of a pure substance?
a)
peanuts
b)
milk
c)
gold
d)
air
2.
Which statement BEST explains how periods on the periodic table are organized?
a)
increasing atomic number from left to right
b)
increasing number of neutrons from left to right
c)
decreasing number of electrons from left to right
d)
decreasing atomic mass number from left to right
3.
An ice cube is put into a heated pan. What will MOST LIKELY happen to the molecules in the ice as they ice is heated?
a)
The molecules will begin to move slower
b)
The molecules will begin to move faster.
c)
The molecules will begin to increase in density
d)
The molecules will begin to condense in the air.
4.
Which BEST explains why the total mass of the product(s) would be less than the total weight of the reactant(s) after a chemical reaction?
a)
a physical change occurred
b)
Atoms involved in the reaction lost mass
c)
Precipitates were created in the new solution
d)
Gases were released to the atmosphere.
5.
What happens to water molecules during the boiling process?
a)
They move faster and move farther apart as they absorb heat.
b)
They move faster and remain close together as they absorb heat.
c)
They move more slowly but move farther apart as they lose heat.
d)
They move faster and move farther apart as they lose heat.
6.
Which pair of elements has the most similar properties?
a)
Li and B
b)
I and Ca
c)
K and He
d)
N and P
7.
If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon should be in the product?
a)
12 atoms of carbon (C)
b)
6 atoms of carbon (C)
c)
3 atoms of carbon (C)
d)
2 atoms of carbon (C)
8.
Which shows one example of a physical change and one example of a chemical change?
a)
boiling water and melting wax
b)
rusting iron and baking a cake
c)
dissolving powder and shredding paper
d)
freezing water and burning coal
9.
How does a balanced chemical equation satisfy the Law of Conservation of Mass?
a)
During a chemical reaction, the total number of matter stays the same.
b)
During a chemical reaction, matter is destroyed.
c)
During a chemical reaction, one or more new substances are formed.
d)
During a chemical reaction, the total number of atoms increases.
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