1. Define the term Solubility

Question 1 of 17

2. State 2 ways in which more solute could be dissolved in a saturated solution

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3. What do each of the following state symbols represent: (s), (l), (g), (aq)

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4. Describe a way in which the rusting of iron could be used to show the approximate percentage of oxygen in air

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5. Explain how a chromatogram shows that different dyes are different from each other

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6. A graph shows the solubility of sodium chloride in water at 50°C is 34g/100g. At that temperature, what mass of sodium chloride will dissolve in 200g water?

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7. What is a base?

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8. When preparing hydrated copper(II) sulfate crystals starting from copper(II) oxide, why is the acid gently heated?

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9. Describe a test to show whether water is pure

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In paper chromatography, the paper is position so it touches the solvent, but why is the paper position so the baseline onto which dyes are placed is above the solvent?

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11. What gas makes up around 1% of Earth's atomosphere?

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12. What is the name for this piece of lab equipment?

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13. Name this piece of lab equipment

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14. In chromatography, what are the minimum and maximum possible values for an Rf value?

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15. Define the term Solute

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16. A substance is found to melt at a single, fixed melting point. Is it likely to be a pure substance or a mixture of substances?

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17. State and explain how increasing temperature affects the diffusion of a gas

Question 17 of 17