Chemical And Physical Changes And Properties; Elements, Compounds, And Mixtures Question Preview (ID: 17093)


Review Chemical And Physical Changes And Properties, Elements, Compounds, And Mixtures. TEACHERS: click here for quick copy question ID numbers.

Which of the following is an example of a chemical change?
a) melting
b) freezing
c) rusting
d) dissolving

Which of the following is an example of a physical change?
a) evaporation
b) combustion
c) rusting
d) nuclear fission

An example of a physical property of matter would be...
a) pH
b) reactivity
c) flammability
d) mass

An example of a chemical property of matter would be...
a) density
b) length
c) color
d) pH

Which of the following is an example of a mixture?
a) Pure gold
b) Water
c) Air
d) Copper wire

Which of the following is a pure substance?
a) NaCl
b) Salt water
c) Fruit salad
d) Lemonade

A mixture that looks like it is all one substance is called a(n)
a) acid
b) solution
c) element
d) compound

_________ are formed when two or more elements combine together to make a pure substance.
a) Mixtures
b) Solutions
c) Combinations
d) Compounds

A(n) _________ is the smallest unit of an element that still retains the properties of that element.
a) gram
b) molecule
c) ion
d) atom

All matter on earth is made up of combinations of ~100 _________.
a) atoms
b) mixtures
c) compounds
d) elements

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