Cadmium metal spontaneously reduces copper(l) ions to copper metal, producing Ca2+ ions as well. AGº for this reaction is-143 kJ/molx Determine the standard reduction potential for Cd2+. HintBegin by finding for the redox reaction.

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

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