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The flow chart below shows a sequence of chemical reactions starting with copper. Study it and answer the questions that follow.

      

The flow chart below shows a sequence of chemical reactions starting with copper. Study it and answer the questions that follow.
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In step 1, excess 3 M nitric (V) acid was added to 0.5 g of copper powder.
(i) State two observations which were made when the reactions was in progress.
(ii) Explain why dilute hydrochloric acid cannot be used in step 1.

  

Answers


John
(i) Effervescence and brown gas produced.

- Blue solution formed

(ii) Dilute hydrochloric acid (HCL) is not an oxidizing agent hence there will be no reaction
johnmulu answered the question on May 17, 2017 at 09:39


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