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Which list holds only compounds? | StemPy Lab
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Which list holds only compounds?
Chemistry
Easy
High School (9–10)
General
Mixtures and Solutions › Elements, Compounds and Changes
Created by
StemPy Lab
Which list holds only compounds?
Iron, copper and gold
Air, sea water and brass
Water, oxygen and salt
Water, common salt and carbon dioxide
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← Iron filings and sulphur are mixed, and nothing happens. When the mixture is heated, it glows red and goes on glowing after the flame is taken away. What does the glow show?
Which is the simplest way to take the iron out of a mixture of iron filings and sulphur powder? →
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Mixtures and Solutions › Elements, Compounds and Changes
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Problems on this topic
Three samples of a white solid are analysed.
Hard
Iron filings and sulphur powder are mixed in a dish.
Medium
Iron and sulphur join to make iron sulphide in the ratio 7 : 4 by mass.
Hard
In water, hydrogen and oxygen are in the ratio 1 : 8 by mass.
Medium
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Created by StemPy LabCreated by StemPy Lab