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Properties And Changes Of Matter Part 3
Test Description: Students prepare for their test on properties and changes of matter
Instructions: Answer all questions to get your test result.
1) Which state of matter usually has the greatest density?
A
gas
B
liquid
C
solid
D
plasma
2) Calculate the density of a cube with a volume of 3 milliliters and a mass of 15 grams
A
8 grams per milliliter
B
1/5 of a gram per milliliter
C
5 grams per milliliter
D
10 grams per milliliter
3) Water is formed when:
A
two hydrogen atoms react with two oxygen atoms
B
a carbon atoms reacts with four oxygen atoms
C
2 hydrogen atoms react with one oxygen atom
D
sodium reacts with chlorine
4) The atoms of a gas:
A
are very slow moving and slightly spread out
B
are very fast moving and far spread out
C
are chemically reacting to form a new substance
D
are tightly packed and vibrating
5) The melting point describes the temperature at which:
A
a liquid turns into a gas
B
plasma becomes a gas
C
a solid changes to a liquid
D
a solid changes directly to a gas
6) Which statement is true when comparing elements and compounds?
A
elements have one type of atom, while compounds have two or more.
B
elements can be broken down by chemical means, but compounds can not
C
elements and combines can both be broken down by chemical means
D
compounds contain only one type of atom, while elements contain two or more types of atoms
7) a mixture that is the same throughout is
A
heterogenous
B
an alloy
C
homogenous
D
an allotrope
8) How many atoms of the same element do diatomic elements have?
A
1
B
2
C
3
D
4
9) How are physical changes different from chemical changes?
A
chemical changes involve a change in the state of matter
B
chemical changes can not be reversed by physical means
C
physical changes change the identity of the substance
D
physical changes can not be reversed
10) Which property of aluminum allows it to be rolled into thin sheets to make aluminum foil?
A
ductility
B
flammability
C
malleability
D
reactivity
*select an answer for all questions
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