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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
solid
B
plasma
C
liquid
D
gas
2) Calculate the density of a cube with a volume of 3 milliliters and a mass of 15 grams
A
1/5 of a gram per milliliter
B
10 grams per milliliter
C
8 grams per milliliter
D
5 grams per milliliter
3) Water is formed when:
A
2 hydrogen atoms react with one oxygen atom
B
sodium reacts with chlorine
C
two hydrogen atoms react with two oxygen atoms
D
a carbon atoms reacts with four oxygen atoms
4) The atoms of a gas:
A
are tightly packed and vibrating
B
are chemically reacting to form a new substance
C
are very slow moving and slightly spread out
D
are very fast moving and far spread out
5) The melting point describes the temperature at which:
A
a liquid turns into a gas
B
a solid changes directly to a gas
C
plasma becomes a gas
D
a solid changes to a liquid
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
compounds contain only one type of atom, while elements contain two or more types of atoms
D
elements and combines can both be broken down by chemical means
7) a mixture that is the same throughout is
A
an alloy
B
homogenous
C
an allotrope
D
heterogenous
8) How many atoms of the same element do diatomic elements have?
A
2
B
1
C
4
D
3
9) How are physical changes different from chemical changes?
A
physical changes change the identity of the substance
B
chemical changes involve a change in the state of matter
C
chemical changes can not be reversed by physical means
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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