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GCSE Chemistry > C4 > Flashcards

C4 Flashcards

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1
Q

What is the law of conservation of mass?

A

No atoms are lost or made during a chemical reactions so mass of the products is equal to the mass of the reactants

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2
Q

What is the relative formula mass?

A

Sum of the relative atomic masses of the atoms in the numbers shown in the formula.

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3
Q

What is the problem with a product of gas?

A

The mass is always the same but it is harder to measure

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4
Q

What is a mole?

A

Mass of one mole of a substance in grams is numerically equal to its relative formula mass

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GCSE Chemistry (14 decks)

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