Exam (elaborations)
Matter and Energy Test (1)
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Matter and Energy Test (1)
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Matter and Energy TestAn apple turning brown after being cut is an example of - ANS-Chemical Change
The melting of butter is a ________ change because it does not produce any new substances. -
ANS-Physical
Iron and sulfur, when heated, from an iron sulfide that has different properties from either iron or
sulfur. The formation of iron sulfide is an example of a __________ change. - ANS-Chemical
A sample of matter can be poured from container to container. It takes the shape of its container
but only takes up a certain volume. This sample is _______state. - ANS-Liquid
The particles of a substance in the _________state are able to slide past each other. -
ANS-Liquid or Gas
Matter that has neither a definite volume nor a definite shape is in _________ state. - ANS-Gas
Two types of matter that are pure substances are _______ and _______. - ANS-Element and
Compound
An alloy such as a gold ring is an example of an _____________ mixture. - ANS-Homogeneous
What change occurs burning occurs? (The two clues) - ANS-Chemical (Energy being released
and heat)
Name three wars that mixture might be separated: - ANS-Centrifuge, Filtration, Distillation
Two characteristics of all matter: - ANS-Takes up space and has mass
An atom is - ANS-Smallest unit of matter that maintains its chemical identity.
A compound is... - ANS-A substance made of two or more atoms that are chemically bonded,
that can be broken down into simpler, stable substances.
Which of the Following is not a physical change:
Cutting, Grinding, Burning, Boiling - ANS-Burning
Which of the following is not a chemical change:
Rusting, Burning, Igniting, Melting - ANS-Melting
A chemical Change occurs when:
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