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Science ACT > Chemistry > Flashcards

Chemistry Flashcards

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1
Q

Neutron

A

A subatomic particle in the nucleus; no charge; same mass as a proton

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2
Q

Proton

A

A subatomic particle, in the nucleus, with a positive charge. The number of protons in an element always stays the same; if there is a different number of protons, they are different elements.

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3
Q

condensation

A

Gas to a liquid; increased pressure or cooling can cause this.

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4
Q

solute

A

a substance that is dissolved in another substance

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5
Q

atom

A

the smallest unit in a chemical element/ the smallest particle of matter; consists of a nucleus, protons, electrons, and neutrons.

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6
Q

Melting

A

Solid to liquid

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7
Q

Feezing

A

Liquid to Solid

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8
Q

Boiling

A

Liquid to Gas

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9
Q

Sublimation

A

Solid to gas

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10
Q

Deposition

A

Gad to solid

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11
Q

Solid

A

a state of matter that has a definite volume and shap; has particles that vibrate in place; has a high density

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12
Q

molecule

A

2 or more atoms bonded tgether to create the smallest unit of a compound that can take part in a chemical reaction

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13
Q

subatomic particles

A

particles within atoms

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14
Q

electron

A

particles located within the outer shell of an atom that have a negative charge.

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15
Q

liquid

A

a state of matter in which there is a definite volume and an indefinite shape; has particles that move around each other.

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16
Q

gas

A

a state of matter in which there is nwither a definite volume nor size; has fast-moving particles; has a low density

17
Q

isotopes

A

atoms of the same element, but with a different number of neutrons and a different mass.

18
Q

mass #

A

sum of protons and neutrons in a single atom

19
Q

atomic #

A

number of protons in an atom

20
Q

compounds

A

2 or more elements that combine to create compounds that have properties

Science ACT (1 decks)

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