elements compounds and mixtures Flashcards

1
Q

what is an element?

A

an element is a substance that is only made of one type of atom. elements are the simplest substances in the universe

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2
Q

what is a compound?

A

if atoms of 2 or more element

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3
Q

fill in gaps

IRON + ____ -> ____ SULPHIDE

A

sulphur iron

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4
Q

what is a mixture

A

2 or more substances not chemically joined together

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5
Q

what is a compound

A

any substance composed of identical molecules consisting of atoms of two or more elements

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