1. Balance the equation for the reaction: ___ HCl(aq) + ___ MnO₂(s) → ___MnCl₂(aq) + ___H₂O(l) + ___ Cl₂(g)

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2. What is the typical range of the pH scale?

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3. State the formula for the lead (II) ion

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4. In the test of a gas, a lit splint gives a squeaky pop. What is the gas?

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5. Are metal oxides acidic or basic?

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6. What is the universal indicator colour of a neutral solution?

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7. Describe the observations of the reaction of zinc and dilute hydrochloric acid

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8. What is an acid?

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9. What is the formula for zinc carbonate?

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10. Can a base neutralise an acid?

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11. Name the compound formed when magnesium reacts with oxygen

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12. State the colour of phenolphthalein in acidic and alkaline solutions

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13. Is iron (III) hydroxide acidic or basic?

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14. How can metal carbonates be used to produce carbon dioxide?

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