chemical analysis

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4 Terms

1
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What is a pure substance?

A substance made of a single element or compound.

2
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How do you test for oxygen?

A glowing splint relights.

3
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What is the Rf value formula in chromatography?

Rf = Distance travelled by substance ÷ Distance travelled by solvent

4
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What’s chromatography used for

To separate mixture and help identify substances in them