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french week 2 > Chemistry test > Flashcards

Chemistry test Flashcards

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1
Q

what is an element

A

an element contains one type of atom and are bonded together to form molecules. All elements appear on the periodic table.

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2
Q

what is a compound

A

A substance containing at least two different elements that are chemically bonded together compounds do not appear on the periodic table

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3
Q

what is a mixture

A

a mixture contains at least two different substances that are not chemically bonded together

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4
Q

what does iron + sulphur make

A

iron sulphide

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5
Q

what are some examples of a compounds

A

iron sulphide

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6
Q

what are some examples of an element

A

iron,sulphur,oxygen

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7
Q

what does a physical change involve

A

it involves rearranging particles but the individual particles are not changed in any way they are also reversible

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8
Q

what is solvent

A

A liquid substance that can dissolve other substances

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9
Q

what is soluable

A

something that can dissolve in a solvent

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10
Q

what is insoluable

A

something that cant dissolve in a solvent

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11
Q

what is a solute

A

the substance that dissolves in the solvent

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12
Q

what is a solution

A

the mixture of a solute in a solvent

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13
Q

What does melting involve

A

melting involves one substance where the arrangement of the particles change from solid to liquid

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14
Q

what is the difference between dissolving and melting

A

heat is needed in melting whereas in dissolving two materials are needed

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15
Q

what does dissolving involve

A

it involves particles of the solute mixing with the particles of the solvent

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16
Q

what does iv stand for

A

independent variable which is the variabale that is changed

17
Q

what does cv stand for

A

control variable which is the variable that stays the same

18
Q

what does dv stand for

A

dependent variable which is the variable that is measured

19
Q

what does immiscible mean

A

liquids that dont mix

20
Q

what does miscible mean

A

liquids that do mix

21
Q

what is a solubility curve

A

a solubility curve is a curve that shows how much solute will dissolve in a given solvent at different temperature

french week 2 (8 decks)

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