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Science Yr 8 Summer Exam Revision > Conservation of Mass > Flashcards

Conservation of Mass Flashcards

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1
Q

what is the letter that stands for density

A

p

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2
Q

what is the equation for density

A

p = mass/ volume

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3
Q

what is the unit for density

A

kg/ m cubed

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4
Q

what is the unit for volume

A

m cubed

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5
Q

what is the unit for mass

A

kg

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6
Q

what is the equation for working out the volume of regular objects

A

volume = length x width x height

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7
Q

what is the way of working out the volume for irregular objects

A

displacement

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8
Q

describe step 1 of the displacement method

A

fill displacement cab to top with water

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9
Q

describe step 2 of the displacement method

A

place object slowly into displacement can

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10
Q

describe step 3 of the displacement method

A

collect water that is displaced in a measuring cylinder

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11
Q

describe step 4 of the displacement method

A

measure the volume of water in ml

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12
Q

describe step 5 of the displacement method

A

convert ml to cm cubed to find volume of object

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13
Q

how many ml makes up 1 cubic cm

A

1 ml = 1 cm cubed

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14
Q

what is the chemical formula for calcium carbonate

A

CaCO3

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15
Q

what is the chemical formula for copper carbonate

A

CuCO3

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16
Q

what is the chemical formula for ammonia

A

NH3

17
Q

what is the chemical formula for hydrochloric acid

A

HCl

18
Q

what is the chemical formula for sulfuric acid

A

H2SO4

19
Q

what is the chemical formula for nitric acid

A

HNO3

20
Q

what is the chemical formula for ethanoic acid

A

CH3COOH

21
Q

what is the chemical formula for sodium hydroxide

A

NaOH

22
Q

what does the arrow mean in a chemical equation

A

produces

23
Q

what is the law of conservation of mass

A

no atoms are created or destroyed during a chemical reaction and the total mass of the reactants equals the total mass of the products

24
Q

what happens to the products if the reactants is a gas

A

the product appears to be greater than the reactants because the particles are more spaced out

25
Q

what happens to the equation if a gas is produced

A

the product appears to be smaller than the reactants because the gas cannot be contained or measured as part of the reaction

Science Yr 8 Summer Exam Revision (10 decks)

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