Lesson 11 of 14
Checkpoint: metals at work
Show on a big screenA solution of calcium oxide in water turns red litmus blue. What kind of oxide is it?
Which metal can push copper out of copper sulphate solution?
Copper is put in dilute hydrochloric acid. What is seen?
How is sodium got from its molten ore?
Iron is melted with a little carbon. What is the product called?
Impure copper is refined by electrolysis. Which electrode is the impure copper?
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