Chapter 2 Test Flashcards
Which of the following is a heterogeneous mixture?
Soil.
Which of the following changes to a metal is a chemical change?
Rusting.
Which of the following is true about homogeneous mixtures?
They are known as solutions.
The first letter in a properly written chemical symbol is always…
Capitalized.
Which state of matter takes both the shape and volume of its container?
Gas only.
An example of an extensive property of matter is…
Mass.
Which state of matter is characterized by having an indefinite shape, but a definite volume?
Liquid only.
Which of the following is a physical property of a substance in the liquid state?
Definite volume.
Which of the following is a physical property of a substance in the liquid state?
Definite volume.
Which of the following may have more than one phase?
A heterogeneous mixture.
Which of the following may have more than one phase?
A heterogeneous mixture.
The chemical formula of a compound indicates..
The relative proportions of the elements in the compound.
The chemical formula of a compound indicates..
The relative proportions of the elements in the compound.
Which of the following is a chemical property?
Ability to react with oxygen.
Which of the following is a chemical property?
Ability to react with oxygen.
Which of the following is a physical property?
Melting point.
Which of the following is a physical property?
Melting point.
Which of the following is a homogeneous mixture?
Salt water.
Which of the following is a homogeneous mixture?
Salt water.
Which of the following can be classified as a mixture?
Pure air.
Which of the following can be classified as a mixture?
Pure air.
Which substance has a chemical symbol that is derived from a Latin name?
Potassium.
Which substance has a chemical symbol that is derived from a Latin name?
Potassium.
Which of the following is a heterogeneous mixture?
Oil and vinegar.
Which of the following is a heterogeneous mixture?
Oil and vinegar.
Which of the following is true about compounds?
They are substances.
Which of the following is true about compounds?
They are substances.
A horizontal row of the periodic table is usually referred to as a …
Period.
A horizontal row of the periodic table is usually referred to as a …
Period.
A chemical change occurs when a piece of wood…
Decays.
A chemical change occurs when a piece of wood…
Decays.
Which of the following is a physical change?
Evaporation.
Which of the following is a physical change?
Evaporation.
In the chemical reaction in which sucrose is heated and decomposes to form carbon dioxide and water, which of the following is a reactant?
Surcose.
In the chemical reaction in which sucrose is heated and decomposes to form carbon dioxide and water, which of the following is a reactant?
Surcose.
A golf ball has more mass than a tennis ball because it…
Contains more matter.
A golf ball has more mass than a tennis ball because it…
Contains more matter.
What is one difference between a mixture and a compound?
A compound can only be separate into its components by chemical means.
What is one difference between a mixture and a compound?
A compound can only be separate into its components by chemical means.
When an iron nail is ground into powder, its mass…
Stays the same.
When an iron nail is ground into powder, its mass…
Stays the same.
Which of the following is a chemical property of water at 4 degress Celsius.
Its ability to decompose into hydrogen and oxygen.
Which of the following is a chemical property of water at 4 degress Celsius.
Its ability to decompose into hydrogen and oxygen.
Which state of matter has a definite volume and takes the shape of its comtainer?
Both b and c (liquid and gas only).
Which state of matter has a definite volume and takes the shape of its comtainer?
Both b and c (liquid and gas only).
Which of the following is used for chemical symbols today?
Letters.
Which of the following is used for chemical symbols today?
Letters.
Which state of matter is characterized by having a definite shape and definite volume?
Solid only.
Which state of matter is characterized by having a definite shape and definite volume?
Solid only.
Which of the following is a physical property of water?
It melts below room temperature.
Which of the following is a physical property of water?
It melts below room temperature.
Which state of matter expands when heated and is easy to compress?
Gas.
Which state of matter expands when heated and is easy to compress?
Gas.
Which of the following represents a compound?
H2o.
Which of the following represents a compound?
H2o.
Separating a solid from a liquid by evaporating the liquid is called…
Distillation.
Which of the following processes involves a change in physical properties?
Boiling.
Give an example of a two-phase mixture and describe how you would separate the substances.
Ice cubes in a cup filled with water.
Which is the difference between a solution and a heterogeneous mixture? Give an example of each.
A heterogeneous mixture doesn’t look the same throughout. An example would be water and oil mixed together in a container. The oil doesn’t combine with the water, it just sits there.
