Chapter 4 Mixtures, Elements And Compounds Question Preview (ID: 33061)


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A molecule is..
a) made of 2 or more elements physically combined
b) chemically combined
c) a heterogeneous mixture
d) used as a solvent

Compounds are...
a) pure substances that are made of more than one element
b) made of only one kind of atom
c) physically combined
d) substances that cannot be broken down.

The substances that make up a mixture...
a) keep most of their properties
b) lose most of their properties
c) are chemically combined
d) are combined in definite proportions

An example of a homogeneous mixture is...
a) oil and vinegar dressing
b) a pile of salt and pepper
c) salt water
d) concrete

An example of a heterogeneous mixture is...
a) concrete
b) brass
c) bronze
d) water

The -Best Mixed- of all mixtures is a...
a) suspension
b) solution
c) heterogeneous mixture
d) compound

The smallest particle of an element that has the properties of that element is...
a) nucleus
b) molecule
c) atom
d) proton

Chemical symbols are...
a) a shorthand way of representing the chemical elements
b) used to distinguish one group from another
c) used only in the United States
d) used to classify elements

An alloy is...
a) a compound
b) a solution of metals
c) a solution of gases
d) chemically combined

The description of a chemical reaction using symbols and formulas is called a chemical...
a) statement
b) reaction
c) property
d) equation

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