4. A large quantity of a reactant that precipitates solid gold from gold in solution was added to a large sample of ocean water, but only a trace amount of solid gold resulted after filtering the mixture. What do you think could be the problem?
Describe one of the reactants as a limiting reagent in your answer.

relative humidity is a measure of the amount of moisture in the air relative to the total amount of moisture the air can hold.

so d

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.