mixture, compounds and states of matter Flashcards

1
Q

what is a compound?

A

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

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2
Q

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

A

molecules (covalent bonding)

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3
Q

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

A

ions (ionic bonding)

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4
Q

what is a mixture?

A

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

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5
Q

why can mixtures be separated easily, unlike compounds?

A

mixtures aren’t chemically bonded, unlike compounds

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6
Q

give 2 examples of mixtures

A

air
crude oil

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7
Q

give 2 examples of compounds

A

carbon dioxide
ammonia

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8
Q

compare density of states

A

solid is the most dense, gas is the least dense

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9
Q

compare particle arrangement in states

A

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

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10
Q

which particles have the most energy?

A

in a gas

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11
Q

in which state are the forces between particles strongest?

A

in a solid

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12
Q

gas to liquid

A

condensation

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13
Q

liquid to solid

A

freezing

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14
Q

solid to gas

A

sublimation

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15
Q

solid to liquid

A

melting

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16
Q

gas to solid

A

deposition

17
Q

liquid to gas

A

evaporation