Chapter 2 - - Matter And Change

Question 1

What is the term for the physical property that depends on the type of matter in a sample?

Answer 1

Intensive Property

Question 2

What is the term for the following Statement - - any physical change or chemical reaction mass is neither created nor destroyed; it is conserved.

Answer 2

Law of Conservation of Mass

Question 3

What is the term for the quality or condition of a substance that can be observed or measured without changing the substanc’s composition?

Answer 3

Physical Property

Question 4

What is the term for the ability of a substance to undergo a specific chemical change?

Answer 4

Chemical Properties

Question 5

What is the term for mixtures were composition is not uniform throughout?

Answer 5

Heterogeneous Mixture

Question 6

What is the term for an expression that indicates the number and type of atoms present in a compound?

Answer 6

Chemical Formula

Question 7

What is the term for the physical property that depends on the amount of matter in a sample?

Answer 7

Extensive Property

Question 8

What is the term for the physical blend of two or more substances?

Answer 8

Mixture

Question 9

What is the simplest form of matter that has a uniques set of properties?

Answer 9

Element

Question 10

What is the term for a substance that contains two or more elements chemically combined in a fixed proportion?

Answer 10

compound

Question 11

What is the term for anything that takes up space and has mass?

Answer 11

Matter

Question 12

What is the term for matter that has a uniform and definite composition?

Answer 12

Substance

Question 13

What is the term for a mixture where composition is uniform throughout?

Answer 13

Homogeneous Mixture

Question 14

What is the term for one or more substances are changed into new substances?

Answer 14

Chemical Change

Question 15

What is the term for a change during which some properties of a material change, but the composition of the materials does not change?

Answer 15

Physical Change

Question 16

Be able to determine if a substance is an element, compound, homogeneous mixture or heterogeneous mixture.
Example:
Apple juice
Boron
Fruit salad
Hydrogen Oxide

Answer 16

Apple juice - - homogeneous mixture
Boron - - Element
Fruit Salad - - Heterogeneous
Hydrogen Oxide - - Compound

Question 17

Be able to determine if something is a chemical change or a physical change.
Example:
Tearing a piece of paper
Burning a wooden chair

Answer 17

Tearing a piece of paper - - physical change

Burning a wooden chair - - chemical change

Question 18

Be able to circle the REACTANTS in a chemical reaction

Answer 18

Use your notes

Question 19

Be able to determine how much of a substance is producted in a chemical reaction

Answer 19

Use your notes

Question 20

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Answer 20

Homogeneous mixture - - uniform throughout (apple juice)

Heterogeneous mixture - - non uniform (fruit salad)

Question 21

What physical property could you use to separate pasta and water after it cooks?

Answer 21

SIZE:
Pasta is big and solid
Water is small and liquid