mixture, compounds and states of matter

Question 1

what is a compound?

Answer 1

a substance that contains two or more elements chemically bonded, different chemical properties

Question 2

what does a compound formed from non-metals consist of?

Answer 2

molecules (covalent bonding)

Question 3

what does a compound formed from a metal and a non-metal consist of?

Answer 3

ions (ionic bonding)

Question 4

what is a mixture?

Answer 4

a substance that contains two or more elements, not chemically bonded, same chemical properties

Question 5

why can mixtures be separated easily, unlike compounds?

Answer 5

mixtures aren’t chemically bonded, unlike compounds

Question 6

give 2 examples of mixtures

Answer 6

air
crude oil

Question 7

give 2 examples of compounds

Answer 7

carbon dioxide
ammonia

Question 8

compare density of states

Answer 8

solid is the most dense, gas is the least dense

Question 9

compare particle arrangement in states

Answer 9

solid-particles vibrate on the start
liquid-particles move around each other, they are touching
gas-particles are no touching, spread out to fill space

Question 10

which particles have the most energy?

Answer 10

in a gas

Question 11

in which state are the forces between particles strongest?

Answer 11

in a solid

Question 12

gas to liquid

Answer 12

condensation

Question 13

liquid to solid

Answer 13

freezing

Question 14

solid to gas

Answer 14

sublimation

Question 15

solid to liquid

Answer 15

melting

Question 16

gas to solid

Answer 16

deposition

Question 17

liquid to gas

Answer 17

evaporation