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Ch 4 Phys Sci--Compounds
Test Description: A quiz on Section 2 of Chapter 4.
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
element
B
mixture
C
compound
D
colloid
2) Elements are rarely found alone in nature.
A
False
B
True
3) How do elements form compounds?
A
They join together by common interests and hobbies.
B
They join in a specific ratio according to their masses.
C
They join together based on their colors and sizes.
D
They randomly join together.
4) Which of the following explains the properties of a compound?
A
A compound has 3/4 the properties of teh elements that make it up.
B
A compound's properties differ from the elements that made it up.
C
A compound has half the properties of the elements that make it up.
D
A compound's properties are exactly the same as the elements that made it up.
5) Compounds can be broken down by
A
chemical changes.
B
chemical and physical changes.
C
physical changes.
D
magic.
6) Which is a method that a compound can be broken down?
A
adding heat
B
adding an electric current
C
all of the above
D
adding energy
7) Which is a compound used in industry?
A
nitrogen compounds
B
carbon dioxide
C
ammonia
D
proteins
8) Which is a compound found in nature?
A
all of the above
B
nitrogen compounds
C
proteins
D
carbohydrates
9) A jar contains samples of the elements carbon and oxygen. What is in the jar?
A
carbon and oxygen
B
a compound
C
carbon dioxide
D
carbon monoxide
10) What is the difference between an element and a compound?
A
Compounds are found in nature and elements are only found in industry.
B
Elements cannot be separated into simpler substances, but compounds can.
C
Elements are only found in nature and compounds are only found in industry.
D
Compounds cannot be separated into simpler substances but elements can.
*select an answer for all questions
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