Particles and Matter

Question 1

Heterogeneous

Answer 1

Able to see different parts

Question 2

Homogenous

Answer 2

Unable to see different parts

Question 3

Alloy

Answer 3

2 or more metals mixed

Question 4

Solution

Answer 4

Particles mix evenly

Question 5

Mechanical Mixture

Answer 5

Particles do not mix evenly

Question 6

Mixture

Answer 6

2 or more types of particles

Question 7

Pure substance

Answer 7

1 type of particle

Question 8

Element

Answer 8

1 capital letter, can’t be broken down

Question 9

Compound

Answer 9

2 or more elements, can be broken down, more than one capital letter.

Question 10

Particle Theory

Answer 10

1. All matter is made up of tiny particles that have empty space between them.
2. Different substances are made up of different kinds of particles.
3. Particles are in constant motion.
4. The particles of a substance move faster as its temperature increases.
5. Particles attract each other.

Question 11

Solubility

Answer 11

Ability to dissolve

Question 12

Lustre

Answer 12

Shine

Question 13

Malleability

Answer 13

Ability to be bent or hammered flat.

Question 14

Ductility

Answer 14

Ability to be bent into wires

Question 15

Viscosity

Answer 15

Ability to flow

Question 16

Fusibility

Answer 16

Ability to melt

Question 17

Heat Conductivity

Answer 17

Ability to carry heat

Question 18

Hardness

Answer 18

Measure of the resistance to being scratched or dented

Question 19

Magnetic quality

Answer 19

attracted to a magnet

Question 20

Form

Answer 20

Type of solid

Question 21

Color change on heating

Answer 21

Substance is reacting with oxygen

Question 22

Solute

Answer 22

What dissolves in a solution

Question 23

Solvent

Answer 23

What the solute dissolves in

Question 24

Alkali Metals

Answer 24

Group 1. Shiny, silvery metals. Most reactive of the metals group, very reactive to air and water

Question 25

Alkaline Earth Metals

Answer 25

Group 2. Shiny, silvery metals, found in the earth’s crust. Reactive, not as reactive as group 1 though.

Question 26

Halogens

Answer 26

Group 17. Non metal, most reactive of non metals. Reactivity has to do with atomic structure. Halogen means salt former. (nacl)

Question 27

Noble Gases

Answer 27

Group 18. All non metals, gases at room temperature. Inert, don’t react with other chemicals.

Question 28

Groups vs. Families

Answer 28

Groups = Columns   - Has the same energy levels 
Families  = Rows      - Has the same properties

Question 29

Suspension

Answer 29

When a mechanical mixture is mixed so it looks like a solution

Question 30

Melting

Answer 30

In a solid the particles are very close together, and the force of attraction is very high. The particle theory states particles are always moving, and the particles in a solid only vibrate because there is not much space to move. Ice turns into water when heat is added because energy is added, which makes the particles move faster and bump into each other more often. As they bump into each other, there is more space between them, making the force of attraction is less, resulting in the water turning from a solid to a liquid.

Question 31

The staircase starts under…

Answer 31

Boron

Question 32

Cs

Answer 32

Cesium

Question 33

Sn

Answer 33

Tin

Question 34

I

Answer 34

Iodine

Question 35

Hg

Answer 35

Mercury

Question 36

Diatomic Element

Answer 36

An element that cannot exist by itself, always molecules. Hydrogen, Neon, Fluorine, Oxygen, Bromine, Chlorine, Iodine.

Question 37

Sublimation

Answer 37

In a gas, the particles are very far apart. When they sublimate, they move closer together and form a solid.

Question 38

Freezing

Answer 38

In a liquid, the particles have a fixed volume but not a fixed shape. When cold is added, energy is taken away, and the particles move less. They stop bumping into each other and move closer together, where the force of attraction is stronger and they move less.

Question 39

Evaporation

Answer 39

In a liquid, the particles have a fixed volume but not a fixed shape. When heat is added, they move faster and start bumping into each other a lot more often, creating more space between them. As there is less space between them, the force of attraction is weaker and they are now a gas.

Question 40

Condensation

Answer 40

In a gas, the particles are very far apart and they have a lot of energy. When cold energy is added, the particles move more slowly and collide with each other less often. Soon, they grow closer together where the force of attraction is stronger. They are now a liquid.

Question 41

Physical Properties

Answer 41

Describes the features of an object, like the size or color.

Question 42

Chemical Properties

Answer 42

Describes the potential for an chemical reaction or for a new substance to be formed from it.

Question 43

Change of State

Answer 43

According to the particle theory, particles are always moving. Particles of a substance form a solid when these forces of attraction are strong enough to hold the particles close together in a rigid shape. When heated, particles gain energy and begin moving faster. When they have enough thermal energy, the particles start sliding past each other because the attraction between particles can no longer hold them together. This is the liquid state. The particles are very close together, but they are able to flow past each other. If heating continues, the particles gain so much energy they literally fly apart. The substance is now in the gaseous state, and the particles are so far apart that the forces of attraction have little effect on their behavior.