Calculate the mass percent of .485 g of hydrogen, which reacts with oxygen to form 2.32 g of H2O

Mass % of hydrogen = 20.9 %

Explanation:

Given data:

Mass of hydrogen = 0.485 g

Mass of water = 2.32 g

Mass percent of hydrogen = ?

Solution:

Mass % of hydrogen = mass of hydrogen / mass of water × 100

Mass % of hydrogen = 0.485 g/ 2.32 g × 100

Mass % of hydrogen = 0.209  × 100

Mass % of hydrogen = 20.9 %

HOPE IT HELPS

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong