Worksheetschemistry review
Total questions: 16
Worksheet time: 32mins
Name
Class
Date
1.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
2.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
3.
Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
a)
Yes
b)
No
4.
Balance this equation
_N2 + _H2 --> _NH3
_N2 + _H2 --> _NH3
a)
1,2,3
b)
1,3,2
c)
1,1,2
d)
2,1,1
5.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction.
6.
What part of the plant soaks up water for photosynthesis?
a)
roots
b)
leaf
c)
petals
d)
stem
7.
Where do plants get the energy for photosynthesis to take place?
a)
nutrients in the soil
b)
the sun
c)
chlorophyll
d)
bee pollination
8.
What is the food manufacturing process in plants?
a)
reparation
b)
glucose
c)
chlorophyll
d)
photosynthesis
9.
TRUE or FALSE: Plants make their own food and use the energy from the food that is made.
a)
True
b)
False
10.
What two things are the product (end result) of photosynthesis?
a)
Oxygen
b)
Glucose
c)
Chloroplasts
d)
Carbon Dioxide
11.
What is a product?
a)
The starting substance
b)
The ending substance
12.
What is a reactant?
a)
The starting substance
b)
The ending substance
13.
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
14.
Using the following chemical reaction
Hydrogen + Oxygen --> water
Identify the product(s).
Hydrogen + Oxygen --> water
Identify the product(s).
a)
Hydrogen and oxygen
b)
water
15.
How many electrons can each p orbital hold?
a)
6
b)
3
c)
2
d)
4
16.
What is the electron configuration for F?
a)
1s2 2s2 3p5
b)
1s2 2s2 3d5
c)
1s2 2s2 2p5
d)
1s2 2p5
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