This is a balanced equation:
H202 ® H2O + 02 True or False

false

Explanation:

there are 3 oxygen atoms on the right and 2 on the left

No

Explanation:

Right:

H = 2 atoms

O = 2 atoms

Left:

H = 2 atoms

O = 1 atom

+

O = 2 atoms

So the Right side has 4 atoms and the Lefts side has 5 atoms. Therefore, not balanced.

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.

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.