MATTER

Question 1

anything that occupies space & has mass

Answer 1

matter

Question 2

properties that can be observed & measured with out changing the substance

Answer 2

physical properties

Question 3

doesn’t depend on the amount of matter e.g. density, odor, taste

Answer 3

intensive properties

Question 4

what properioes that
depend on the amount of matter e.g. mass, volume, length

Answer 4

extensive properties

Question 5

property that can be identified when one substance reacts with other substance

Answer 5

chemical properties

Question 6

what are the pure substances

Answer 6

elements, metals, non-metals, metalloids

Question 7

what pure substance that cannot be decomposed by ordinary chemical means

Answer 7

elements

Question 8

what pure substance that conducts heat and electricity easily

Answer 8

metals

Question 9

what pure substance that have low density and don’t conduct heat & electricity

Answer 9

non-metals

Question 10

what pure substance that has properties of both metals and non-metals

Answer 10

metalloids

Question 11

combination of two or more elements that can be decomposed chemically

Answer 11

compounds

Question 12

what compounds that contain carbon, especially carbon-hydrogen bonds

Answer 12

organic compounds

Question 13

what compounds that don’t have carbon-hydrogen bonds but contain table salt (NaCl), CO2, diamond (pure carbon)

Answer 13

inorganic compounds

Question 14

combination of two or more substances that are physically mixed and can be separated

Answer 14

mixtures

Question 15

what mixtures where there is only one phase is observable

Answer 15

homogenous

Question 16

how does homogenous happen

Answer 16

solution = solute + solvent

Question 17

what is the difference between solute & solvent

Answer 17

solute is the substance dissolved e.g. salt

solvent is the dissolving agent
e.g. water

Question 18

what homogenous solution is where there are more solute than solvent

Answer 18

concentrated

Question 19

what homogenous solution is where there are more solvent than solute

Answer 19

diluted

Question 20

what homogenous solution is where there are equal amount of solute and solvent

Answer 20

saturated

Question 21

what homogenous solution is where the solute is higher than max

Answer 21

supersaturated solution

Question 22

what kind of mixtures where there are 2 or more phases are observable

Answer 22

heterogeneous

Question 23

what phase in heterogeneous mixture where particles are settle out

Answer 23

suspension

Question 24

what phase in heterogeneous mixture where it exhibits tyndall effect (if light passes through, light beam will be visible)

Answer 24

colloids

Question 25

what are the fundamental states/phase of matter

Answer 25

solid liquid gas plasma - when air/gas is ionized Bose Einstein Condensate (BEC) - when gas of bosons cooled to temp close to absolute zero

Question 26

solid to liquid

Answer 26

melting

Question 27

liquid to solid

Answer 27

freezing

Question 28

liquid to gas

Answer 28

evaporation

Question 29

gas to liquid

Answer 29

condensation

Question 30

solid to gas

Answer 30

sublimation

Question 31

gas to solid

Answer 31

deposition

Question 32

ability of metals to be flattened into sheets w/out breaking

Answer 32

malleability

Question 33

ability of metals to be drawn into wires

Answer 33

ductility

Question 34

ability o f an object to be stretched and then return to its original shape

Answer 34

elasticity

Question 35

amount of solute that can be dissolved in a given amount of solvent at any given temp

Answer 35

solubility

Question 36

property of a liquid to draw the surface molecules into body of a liquid and reduces its surface area

Answer 36

surface tension

Question 37

resistance of fluid to flow

Answer 37

viscosity

Question 38

ability of liquids to rise through tubes

Answer 38

capillarity

Question 39

what changes that involve change in state, size, shape, or physical appearance

Answer 39

physical change

Question 40

change that result in formation of new substance

Answer 40

chemical change

Question 41

ability of matter to spread quickly; movement of substance from an area higher concentration to an area of lower concentration

Answer 41

diffusion

Question 42

attraction between unlike molecules

Answer 42

adhesion

Question 43

attraction between like molecules

Answer 43

cohesion

Question 44

refers to the random motion of particles suspended in a liquid or gas, caused by collisions with molecules of the surrounding medium

Answer 44

brownian motion

Question 45

chemical reaction that releases heat to the surroundings

Answer 45

exothermic reaction

Question 46

chemical reaction that absorbs heat from the surroundings

Answer 46

endothermic reaction