Question

Looking Back
Understanding
Say whether the statements are true or false.
1. Gold, silver and platinum are found in the Earth's crust as free metals.
2. Most metals are solids that are soft.
3. Metals such as zinc and magnesium react with dilute acids to liberate oxygen.
4. A less reactive metal displaces a more reactive metal from its aqueous solution
5. The chemical name of rust is zinc oxide.
6. Coating zinc objects with iron is called galvanising.​

Answer 1

Answer:

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