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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
carbon dioxide
B
solution
C
compound
D
molecule
3) A substance that can be combined with baking soda to produce carbon dioxide is
A
vinegar
B
peroxide
C
salt
D
water
4) How many elements are on the periodic table
A
just over 100
B
just under 50
C
210
D
70
5) The particle in the atom that is found outside the nucleus is the
A
element
B
electron
C
neutron
D
proton
6) When two or more atoms join together, they form a
A
model
B
atom
C
combination
D
molecule
7) Which of these is an example of a compound?
A
Calcium
B
iron
C
rust
D
Hydrogen
8) When sodium and chlorine combine, they form
A
an element
B
a solution
C
pepper
D
salt
9) Lemonade is an example of
A
a chemical
B
a solution
C
a compound
D
an element
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
Green tomatoes turning red
B
Cut apples turning brown
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
Hydrogen and peroxide
B
Gold and Sulfur
C
calcium and helium
D
iron and oxygen
13) The physical property that describes how much a substance will bend is known as
A
elasticity
B
bendability
C
twisting
D
flexibilty
14) What is a mixture?
A
Food that is made of 4 or more different things
B
when two or more substances combine and dissolve into each other
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
food is digested
B
wood is burned
C
pyrite comes into contact with acid
D
a fruit turns moldy
16) Knowing about chemical properties can help in identifying
A
protons and neutrons
B
elements and compounds
C
nuclei and atoms
D
mixtures and solutions
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
benchmark
D
neutron
19) When a chemical reaction happens what will happen?
A
you can see light
B
color will change
C
Smoke will occur
D
all of the above
20) What is the chemical symbol for Gold?
A
Ag
B
Go
C
G
D
Au
*select an answer for all questions
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