Chemical Reactions Question Preview (ID: 50784)


Identifying Evidence Of New Substances Formed. TEACHERS: click here for quick copy question ID numbers.

Two substances combine to form a new substance with new properties.
a) chemical change
b) physical change
c) mixture
d)

Two liquids combine creating a solid substance at the bottom. This solid is called a
a) atom
b) precipitate
c) molecule
d) physical change

Which of the following is an example of a chemical change?
a) dissolving sugar in water
b) boiling water on the stove
c) iron rusting
d) cutting a piece of paper

Which of the following is NOT a chemical change
a) digesting food
b) freezing water
c) baking cookies
d) acid rain weathering limestone

Which of the following IS evidence of chemical change
a) change in size
b) change in smell
c) change in shape
d) change in state

Which of the following IS evidence of chemical change
a) change in temperature
b) expected change in color
c) change in shape
d) change in size

Which of the following is NOT and example of chemical change?
a) combining a white substance and clear liquid and a gas is produced
b) combining two clear liquids and a bright pink liquid appears
c) mixing a clear liquid with a white liquid and a solid substance forms
d) mixing salt in water and the salt disolves

Which of the following NOT a physical change?
a) cutting paper
b) melting butter
c) burning wood
d) boiling water

All of the following are evidence of chemical change EXCEPT
a) light production
b) sound production
c) temperature change
d) change in state of matter

Which IS an example of a chemical change?
a) mixing salt and pepper
b) evaporation
c) photosynthesis
d) mixing oil and water

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