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ECS Ch3 Sec2 Compounds
Test Description: All about compounds
Instructions: Answer all questions to get your test result.
1) A substance made up of atoms of two or more different elements joined by chemical bonds
A
Mixture
B
Compound
C
Element
D
Solution
2) Which is an example of a compound?
A
Oxygen
B
Carbon
C
Iron
D
Carbon Dioxide
3) How can a Compound be broken down?
A
By Chemical Changes
B
By Physical Changes
C
By both Physical and Chemical Changes
D
A Compound Cannot be Broken Down
4) The elements in a compound
A
Do not join in a specific ration.
B
Join in a specific ratio according to their masses.
C
join by physical changes.
5) Which of the following best describes chicken noodle soup?
A
element
B
compound
C
solution
D
mixture
6) Which of the following substances can only be separated into simpler substances only by chemical means?
A
salt water
B
gold
C
Sodium
D
water
7) In which classification of matter are components chemically combined?
A
a suspension
B
a colloid
C
a solution
D
a compound
8) A substance that cannot be separated or broken down into simpler substances by chemical means
A
Compound
B
element
C
Solution
D
Mixture
9) A sample of matter, either a single element or a single compound, that has definite chemical and physical properties
A
Mixture
B
Compound
C
Solution
D
Pure substance
10) A combination of tow or more substances that are not chemically combined
A
Compound
B
Mixture
C
Element
D
Atom
*select an answer for all questions
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