general preamble vocab Flashcards

1
Q

study of matter and energy and more importantly the changes between them

A

chemistry

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2
Q

mass reactants = mass products (the whole reason we balance stuffs)

A

Law of Conservation of Mass

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3
Q

energy can’t be created or destroyed, and can only change forms

A

Law of Conservation of Energy

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4
Q

solid to liquid

A

melting

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5
Q

liquid to gas

A

boiling

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6
Q

gas to liquid

A

condensing

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7
Q

solid to gas

A

sublimation

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8
Q

gas to solid

A

deposition

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9
Q

liquid to solid

A

freezing

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10
Q

What are the three separation techniques?

A

chromatography, distillation, filtration

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11
Q

Distillation involves…

A

boiling points

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12
Q

Filtration does what exactly?

A

separates solids from liquids

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13
Q

Protons + Neutrons tell us what about an isotope?

A

its mass

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14
Q

Protons specifically tell us what about an isotope?

A

the identity of the isotope (element # basically)

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15
Q

Electrons tell us what about an isotope?

A

chemical characteristics

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16
Q

What are the 7 diatomic elements?

A

Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine, and Bromine (Have No Fear Of Ice CoLd BeeR)

17
Q

substances with constant composition that can be broken down into elements by chemical processes

A

compounds

18
Q

oxidation number

A

pretty much just a charge lmao

19
Q

gas phase of a substance that would normally be a solid or liquid at room temperature

A

vapor

20
Q

phase that can flow, primarily gases and liquids

A

fluid

21
Q

this can be physically separated

A

mixture

22
Q

mixture with visibly indistinguishable parts, air for example

A

homogeneous (remember the air is gay)

23
Q

mixture with visibly distinguishable parts, ramen for example

A

heterogeneous (we straight with ramen)

24
Q

What defines isotopes?

A

atoms with the same number of protons and electrons but different number of neutrons