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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
atom card
B
periodic table
C
element chart
D
solution and mixture formula
2) When the atoms of DIFFERENT elements combine to make a new substance, the substance is called a
A
molecule
B
compound
C
solution
D
carbon dioxide
3) A substance that can be combined with baking soda to produce carbon dioxide is
A
vinegar
B
salt
C
peroxide
D
water
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
electron
B
element
C
proton
D
neutron
6) When two or more atoms join together, they form a
A
atom
B
model
C
combination
D
molecule
7) Which of these is an example of a compound?
A
Hydrogen
B
iron
C
rust
D
Calcium
8) When sodium and chlorine combine, they form
A
pepper
B
a solution
C
an element
D
salt
9) Lemonade is an example of
A
an element
B
a solution
C
a chemical
D
a compound
10) An example of a physical property is
A
It reacts with acid
B
It can burn
C
It is blue
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
Gold and Sulfur
C
iron and oxygen
D
Hydrogen and peroxide
13) The physical property that describes how much a substance will bend is known as
A
bendability
B
flexibilty
C
twisting
D
elasticity
14) What is a mixture?
A
when two or more substances combine but can be taken back apart
B
a cake
C
when two or more substances combine and dissolve into each other
D
Food that is made of 4 or more different things
15) Ash is a new substance formed when
A
a fruit turns moldy
B
food is digested
C
wood is burned
D
pyrite comes into contact with acid
16) Knowing about chemical properties can help in identifying
A
protons and neutrons
B
nuclei and atoms
C
mixtures and solutions
D
elements and compounds
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
proton
B
molecule
C
benchmark
D
neutron
19) When a chemical reaction happens what will happen?
A
all of the above
B
you can see light
C
Smoke will occur
D
color will change
20) What is the chemical symbol for Gold?
A
Au
B
G
C
Ag
D
Go
*select an answer for all questions
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