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Elements B1
Test Description: Review
Instructions: Answer all questions to get your test result.
1) A chart that classifies elements by their properties is a
A
solution and mixture formula
B
periodic table
C
atom card
D
element chart
2) When the atoms of DIFFERENT elements combine to make a new substance, the substance is called a
A
molecule
B
carbon dioxide
C
compound
D
solution
3) A substance that can be combined with baking soda to produce carbon dioxide is
A
salt
B
peroxide
C
vinegar
D
water
4) How many elements are on the periodic table
A
210
B
just over 100
C
just under 50
D
70
5) The particle in the atom that is found outside the nucleus is the
A
neutron
B
electron
C
element
D
proton
6) When two or more atoms join together, they form a
A
model
B
molecule
C
atom
D
combination
7) Which of these is an example of a compound?
A
Hydrogen
B
iron
C
Calcium
D
rust
8) When sodium and chlorine combine, they form
A
salt
B
pepper
C
an element
D
a solution
9) Lemonade is an example of
A
a solution
B
a chemical
C
a compound
D
an element
10) An example of a physical property is
A
It reacts with acid
B
It is blue
C
It can burn
D
It reacts with air
11) An example of a change that is NOT a chemical change is
A
Cut apples turning brown
B
Green tomatoes turning red
C
Batter baked into a cake
D
Cucumbers tossed with lettuce for a salad
12) Rust occurs when what two elements combine with each other?
A
calcium and helium
B
iron and oxygen
C
Gold and Sulfur
D
Hydrogen and peroxide
13) The physical property that describes how much a substance will bend is known as
A
flexibilty
B
elasticity
C
twisting
D
bendability
14) What is a mixture?
A
a cake
B
Food that is made of 4 or more different things
C
when two or more substances combine but can be taken back apart
D
when two or more substances combine and dissolve into each other
15) Ash is a new substance formed when
A
food is digested
B
pyrite comes into contact with acid
C
a fruit turns moldy
D
wood is burned
16) Knowing about chemical properties can help in identifying
A
mixtures and solutions
B
elements and compounds
C
nuclei and atoms
D
protons and neutrons
17) Matter has mass and takes up
A
compound
B
water
C
solution
D
space
18) The smallest unit of a compound is a
A
neutron
B
molecule
C
proton
D
benchmark
19) When a chemical reaction happens what will happen?
A
color will change
B
all of the above
C
Smoke will occur
D
you can see light
20) What is the chemical symbol for Gold?
A
Go
B
Ag
C
G
D
Au
*select an answer for all questions
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