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GCSE Chemistry > C3 > Flashcards

C3 Flashcards

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1
Q

Reactant

A

Substances present at the start of a reaction

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2
Q

Product

A

substances formed in a chemical reaction

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3
Q

Conservation of Mass

A

Atoms cannot be created or destriyed. The mass of reactnats is equal to the mass of products

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4
Q

Thermal decomposition

A

Type of reaction in which a compound breaks down to form two or more substances when it is heated

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5
Q

When a metal forms a metal oxide, why does the mass increase

A

Because oxygen has been added

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6
Q

When an acid reacts with a metal, why does the mass decrease

A

Because a gas is produces and escapes

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GCSE Chemistry (16 decks)

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