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Core Chemistry > Key Words 2 > Flashcards

Key Words 2 Flashcards

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0
Q

Electrolysis

A

Passing a direct electrical current through an electrolyte to decompose it

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1
Q

Ore

A

Rock from which a metal can be extracted for profit

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2
Q

Element

A

Substance that cannot be split into simpler substances

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3
Q

Erosion

A

Removal or transportation of broken up rocks

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4
Q

Ethanol

A

A fuel made by processing sugar beet or sugar cane

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5
Q

Fineness

A

A measure of the purity of gold in parts per thousand with thousand being the most pure

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6
Q

Fuel cell

A

A device which produces electricity from hydrogen and oxygen without burning

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7
Q

Granite

A

Igneous rock with relatively large crystals formed when magma cools and solidifies slowly

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8
Q

Hydrocarbon

A

A compound contains hydrogen and carbon atoms only

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9
Q

Incomplete combustion

A

Combustion that occurs without enough oxygen to completely oxidase all the fuel, for hydrocarbons it produces carbon dioxide carbon monoxide and soot

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10
Q

Substance which does not dissolve in a given solvent

A

Insoluble

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11
Q

Ion

A

An atom that has become electrically charged

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12
Q

Lava

A

Molten rock on the earth’s surface

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13
Q

Magma

A

Molten rock cooled inside the earth’ surface

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14
Q

Limestone

A

Sedimentary rock mostly calcium carbonate made from the remains of marine organisms

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15
Q

Limewater

A

A solution of calcium hydroxide that turns milky when carbon dioxide is bubbled through it

16
Q

Malleable

A

Can be hammered into shape

17
Q

Marble

A

Metamorphic rock mostly calcium carbonate formed from limestone or chalk

18
Q

Molecule

A

Two or more atoms joined together

19
Q

Monomer

A

Small molecule used to make a polymer

20
Q

Nitinol

A

An alloy of nickel and titanium which is a shoe memory alloy

21
Q

Plastic

A

Common name for a polymer

22
Q

Poly(chloroethene)

A

A polymer made from chloroethene monomers, also known as PVC

23
Q

Poly(ethene)

A

A polymer made from ethene monomers

24
Q

Poly(propene)

A

A polymer made from propene monomers

25
Q

Polymer

A

A long molecule made by joining many small molecules

26
Q

Polymerization

A

The process of making a polymer

27
Q

Precipitation reaction

A

Reaction in which an insoluble product(precipitate) is formed from two soluble reactants

28
Q

Reactant

A

Substance used up in a chemical reaction

29
Q

Soluble

A

Substance which dissolves in a given solvent

30
Q

Sedimentary rock

A

Rock made by compression of layers of solid material (sediment)that settles to the bottom of a fluid such as water

31
Q

Unsaturated

A

A molecule with at least one double bond between carbon atoms

32
Q

Viscosity

A

How thick or runny a liquid is

Core Chemistry (3 decks)

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