Chemistry: Matter/Cgem&PjysicalProperties

Question 0

Matter

Answer 0

Anything that has mass and volume and takes up space

Question 1

Chemistry

Answer 1

Study of matter and how it changes

Question 2

(Pure) Substances

Answer 2

Matter that always has same composition and properties

Question 3

Elements and compounds

Answer 3

Substances can be classified into

Question 4

Element

Answer 4

Substance that can NOT be broken down into anything smaller. (All found on the Periodic Table of Elements)

Question 5

Compounds

Answer 5

Substance made of two or more elements

Question 6

Elements are made of

Answer 6

Atoms

Question 7

Molecule

Answer 7

Made of different elements and/ or compounds

Question 8

Chemical formulas

Answer 8

Shows how many atoms of each element are in the basic units of a substance

Question 9

Mixture

Answer 9

A combination of two or more pure substances. Can be separated into their parts.

Question 10

Heterogeneous

Answer 10

Mostly solid substances that are NOT mixed well

Question 11

Immiscible

Answer 11

Two or more liquids that do NOT mix into each other (oil and water).

Question 12

Homogeneous

Answer 12

Substances ARE mixed well

Question 13

Miscible

Answer 13

Two or more liquids that DO dissolve into each other (gases can also be dissolved)

Question 14

Solution

Answer 14

Substances that dissolve and form a homogeneous mixture

Question 15

Suspension

Answer 15

Heterogeneous mixture that separates into layers over time

Question 16

Colloid

Answer 16

Contains some particles that are intermediate in size between the small and large particles

Question 17

2 ways to separate mixtures

Answer 17

Distillation and Filtration

Question 18

Distillation

Answer 18

Separating materials based on their boiling point

Question 19

Filtration

Answer 19

Separates materials based on the size of their particles

Question 20

Starting materials in a chemical reaction

Answer 20

Reactant

Question 21

Substances produced by a chemical reaction (could be gas, precipitate, or a new solution)

Answer 21

Product

Question 22

When a substance changes into one or more new substances

Answer 22

Chemical change

Question 23

Color change, odor change, release of heat, has is treated, formation of precipitate (liquid turning solid, cottage cheese)

Answer 23

Signs that a chemical change has occurred.

Question 24

Rusting, leaves changing color in the fall, baking bread, and digesting food are example of what?

Answer 24

Chemical changes

Question 25

When a substances appearance changes but not the atoms

Answer 25

Physical change

Question 26

What can most be reversed?

Answer 26

Physical changes

Question 27

Shape change, color change, texture change, dissolving, or phase changes indicate what?

Answer 27

They are signs that a physical change has occurred.

Question 28

Cutting grass, hammering steel into a flat sheet, turning peanuts into peanut butter, braiding hair, dissolving salt into water, and ice cubes melting are examples of what?

Answer 28

Physical changes

Question 29

D = ?

Answer 29

M divided by volume

Question 30

Light, sound, electricity, and emotions are NOT what?

Answer 30

Examples of matter

Question 31

Tim, sulfur, diamond, water, and pure sugar, table salt, and baking soda are all examples of what?

Answer 31

Pure substances

Question 32

Is water a compound?

Answer 32

Yes

Question 33

Beach sand, Eason bran, chocolate cookie dough and salad are all exams of what moxture?

Answer 33

Heterogeneous

Question 34

Kool aid, dr. Pepper, tea, windshield wiper fluid are all what?

Answer 34

Solutions

Question 35

Oil and water, sandy water (sand will drop down), orange juice with Pulp, Italian dressing, and muddy water are all examples of what?

Answer 35

Suspension

Question 36

Jelly, thick paint, mayonnaise, whip cream, fog, and smoke are examples of what?

Answer 36

A colloid

Question 37

Strainers, filters, and screens are all used for what

Answer 37

Filtration

Question 38

Boiling salt water to make fresh water is an example of what?

Answer 38

Distillation