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