Elements Mixtures And Compounds Question Preview (ID: 49401)


Elements Mixtures And Compounds Review Questions. TEACHERS: click here for quick copy question ID numbers.

How is a mixture different from a compound?
a) Mixtures have two or more components.
b) Solids, liquids, and gases can form mixtures.
c) Mixtures are commonly found in nature.
d) Each substance in a mixture keeps most of its characteristic properties.

What two elements make up common table salt?
a) Sodium and hydrogen
b) Chlorine and sodium
c) Chlorine and hydrogen
d) Sodium and oxygen

Which one of the following substances is not a mixture?
a) Air
b) Water
c) Gasoline
d) Chex mix

Which of the following sets of substances represents mixtures only?
a) Orange juice, sodium and hydrogen
b) Air, blood and sodium chloride
c) Brass, seawater and air
d) Gold, carbon and air

How many atoms are there in a molecule of CH4?
a) 2
b) 3
c) 5
d) 4

Where two or more substances are mixed together but not chemically combined, this substance is called
a) a molecule
b) a mixture
c) a compound
d) an atom

Which of the following statements is correct?
a) Carbon is a mixture and air is a compound.
b) Air is a mixture and table salt is a compound.
c) Air is a mixture and carbon is a compound.
d) Table salt is a mixture and carbon is a compound.

The properties of a compound will be the same as the properties of the elements that make up the compound.
a) True
b) False
c)
d)

Which one of the following statements is correct?
a) Water is an element and nitrogen is a compound.
b) Water is a compound and nitrogen is an element.
c) Water and nitrogen are both compounds.
d) Water and nitrogen are both elements.

The smallest part of a compound which still has the properties of that compound is called
a) an atom
b) a mixture
c) a molecule
d) a solid

Italian Salad Dressing is a . . .
a) heterogeneous mixture
b) Pure Substance
c) Compound
d) homogeneous mixture

A mixture that appears to be evenly mixed throughout:
a) an atom
b) a homogeneous mixture
c) a compound
d) a heterogeneous mixture

Which of the following substances is a compound?
a) Oxygen
b) NaCl
c) Copper
d) Helium

Mixtures are separated through ___________changes.
a) Mixture
b) Compound
c) Chemical
d) Physical

Two or more materials that combine chemically form a(n) _____________.
a) Mixture
b) Compound
c) Liquid
d)

These are found on the Periodic Table.
a) Element
b) Compound
c) Mixture
d)

These are written as chemical formulas.
a) Element
b) Compound
c) Mixture
d)

These can be homogeneous OR heterogeneous.
a) Elements
b) Compounds
c) Mixtures
d)

Are there any compounds on the periodic table?
a) Yes there are many
b) Yes there are a couple
c) No because only elements are on the periodic table
d) No but mixtures are found on the periodic table

Which of the following is not a compound?
a) HCl
b) NaCl
c) Cl
d) CO2

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