Ng 6. Water is 2 parts hydrogen and 1 part oxygen
(H2O). For one molecule of water, each atom
has the atomic mass unit, u,
shown. What percent of
the mass of a water
molecule is hydrogen?

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

you would need to also lose 1 point for each of the other outcomes for it to be fair.

step-by-step explanation:

answer: i could not see part the question so ill explain how to get the answer

step-by-step explanation: for instance the distance she travele d is 10 and she traveled the same amout each mile so do 10 divided by how many miles she drove each time and you ge your answer.