Ch 4 Phys Sci--Compounds Question Preview (ID: 13524)

A Quiz On Section 2 Of Chapter 4.

A substance made up of atoms of two or more different elements joined by chemical bonds
a) mixture
b) compound
c) element
d) colloid

Elements are rarely found alone in nature.
a) True
b) False

How do elements form compounds?
a) They randomly join together.
b) They join in a specific ratio according to their masses.
c) They join together based on their colors and sizes.
d) They join together by common interests and hobbies.

Which of the following explains the properties of a compound?
a) A compound's properties are exactly the same as the elements that made it up.
b) A compound has half the properties of the elements that make it up.
c) A compound's properties differ from the elements that made it up.
d) A compound has 3/4 the properties of teh elements that make it up.

Compounds can be broken down by
a) chemical changes.
b) physical changes.
c) chemical and physical changes.
d) magic.

Which is a method that a compound can be broken down?
a) adding energy
b) adding heat
c) adding an electric current
d) all of the above

Which is a compound used in industry?
a) ammonia
b) proteins
c) nitrogen compounds
d) carbon dioxide

Which is a compound found in nature?
a) nitrogen compounds
b) proteins
c) carbohydrates
d) all of the above

A jar contains samples of the elements carbon and oxygen. What is in the jar?
a) a compound
b) carbon and oxygen
c) carbon dioxide
d) carbon monoxide

What is the difference between an element and a compound?
a) Compounds cannot be separated into simpler substances but elements can.
b) Compounds are found in nature and elements are only found in industry.
c) Elements cannot be separated into simpler substances, but compounds can.
d) Elements are only found in nature and compounds are only found in industry.

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