Matter

Question 0

Chemical Properties

Answer 0

Are the characteristics that determine how the composition of matter changes as a result of contact with other matter or the influence of energy

Question 1

Physical Properties

Answer 1

Are the characteristics of matter that can be changed without changing its composition.

Question 2

Physical Changes

Answer 2

Are changes to matter that do not change the fundamental components that make that substance.

Examples:
Iron is melted- describes a state change, but the material is still iron

Question 3

Chemical Changes

Answer 3

Involve a change in the fundamental components of the substance.

Example:
Sugar ferments to form ethyl alcohol- describes how sugar forms a new substance (ethyl alcohol)
Iron combines with oxygen to form rust-describes how iron and oxygen react to make a new substance, rust

Question 4

Elements

Answer 4

Substances which cannot be broken down into simpler substances by chemical reactions

Question 5

Compounds

Answer 5

A substance with constant composition, that can be broken down into elements by chemical processes.
Most substances are chemical combinations of elements.
-compounds are made of elements
-compounds can be broken down into elements
-properties of the compound not related to the properties of the elements that compose it
-same chemical composition at all times

Question 6

Homogeneous

Answer 6

Uniform throughout, appears to be one thing. (A solution)

• pure substances
• solutions (homogeneous mixtures)

Question 7

Heterogeneous

Answer 7

Non-uniform, contains regions with different properties than other regions.

Question 8

Pure Substances

Answer 8

• All samples have the same physical and chemical properties
• Constant composition all samples have the same composition.
• Homogeneous
• Separate into components based on chemical properties

Question 9

Mixtures

Answer 9

• Different samples may show different properties
• Variable composition
• Homogeneous or Heterogeneous
• Separate into components based on physical properties

*All mixtures are made of pure substances

Question 10

Matter

Answer 10

Is the part of the universe that has mass and volume.

Question 11

Distillation

Answer 11

The method for separating the components of a liquid mixture that depends on differences in the ease of vaporization of the components.

Question 12

Filtration

Answer 12

A method for separating the components of a mixture containing a solid and a liquid.

Question 13

Solid

Answer 13

One of the three states of matter; has a fixed shape and volume.

Question 14

Solution

Answer 14

A homogeneous mixture

Question 15

States of Matter

Answer 15

The three different forms in which matter can exist: solid, liquid, and gas.