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Chemistry Y9 > Chapter 2- Seperating And Purifying Mixtures > Flashcards

Chapter 2- Seperating And Purifying Mixtures Flashcards

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1
Q

Pure subsatnces in chromotography produce…

A

Only one spot

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2
Q

Impure substances in chromotography produce…

A

2 or more spots

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3
Q

RF stands for…

A

Retention factor

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4
Q

Rf=…

A

Distance spot moved divided by distance solvent moved

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5
Q

Liquid condensed in the beaker at the end is called…

A

Distillate

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6
Q

Mixture melting point

A

They melt over a range of temperatures

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7
Q

Pure subastnce melting point…

A

Precise melting point

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8
Q

Deselination is…

A

Turning salt water into pure water

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9
Q

Steps to fresh water

A

Reservoir, screening, sedimentation, filtration, chlorination

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10
Q

Why is water tested so regullary?

A

Ph level could change and mass of substance coming through

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11
Q

Centrifuge…

A

Used for seperating a denser liquid eg. oil and watet

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Chemistry Y9 (5 decks)

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