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WorksheetsChemistry
Total questions: 25
Worksheet time: 17mins
Name
Class
Date
1.
Basic unit of matter - the smallest piece of matter known
a)
Element
b)
Atom
c)
Molecule
d)
Compound
2.
Density is...
a)
the amount of mass in an object
b)
the amount of space an object takes up
c)
the amount of mass in a given space
d)
the weight of an object
3.
How many protons does Carbon have?
a)
3
b)
4
c)
5
d)
6
4.
Negatively charged part of an atom located in levels outside the nucleus
a)
Proton
b)
Neutron
c)
Electron
d)
Neutron
5.
In a liquid, the molecules have a definite shape and a definite volume
a)
True
b)
False
6.
The density of water is
a)
.1 g/cubic cm
b)
10g/cubic cm
c)
1.0 g/cubic cm
d)
0 g/cubic cm
7.
Burning a piece of paper
a)
Chemical Change
b)
Physical Change
8.
Mixing salt and water
a)
Chemical Change
b)
Physical Change
9.
Melting Ice
a)
Chemical Change
b)
Physical Change
10.
Milk turning sour
a)
Chemical Change
b)
Physical Change
11.
What is the symbol for chlorine?
a)
C
b)
Ch
c)
Ce
d)
Cl
12.
Which of these elements has a symbol which DOES NOT include a letter from its name?
a)
iron
b)
helium
c)
magnesium
d)
zinc
13.
What is the symbol for the element Neon?
a)
Na
b)
Ne
c)
He
d)
N
14.
A _________ is a substance made of two or more DIFFERENT elements chemically combined.
a)
mixture
b)
compound
c)
substance
15.
A mixture can be separated by ________ means.
a)
physical
b)
chemical
16.
Which of the following is NOT a mixture?
a)
NaCl + H2O
b)
C6H12O6 + H2O
c)
C6H12O6
d)
SiO2 +H2O
17.
Salt Water
a)
Compound
b)
Mixture
18.
Chalk and Vinegar
a)
Compound
b)
Mixture
19.
Has properties different than the elements that make it up
a)
Compound
b)
Mixture
20.
A bar of gold is made of only one ______
a)
Plasma
b)
Mixture
c)
Element
d)
Compound
21.
If the number of electrons in an element changes, a new element is formed
a)
True
b)
False
22.
These are the two particles located inside the nucleus of an atom
a)
Protons and Electrons
b)
Protons and Neutrons
c)
Electrons and Neutrons
d)
Neutrons and Molecules
23.
How many ATOMS are in the following compound: C2H4O2
a)
3
b)
8
c)
1
d)
6
24.
How many MOLECULES are in the following compound: CaCO3
a)
1
b)
3
c)
5
d)
0
25.
If I mix 8 grams of kool-aid powder with 82 grams of water, how much will the resulting kool-aid drink weigh?
a)
A little more than 82 grams
b)
74 grams
c)
90 grams
d)
82 grams
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