Question

State the difference between 2 H and H2 ii) H2O and 3H2O​

Answer 1

Answer:

The H2O part is the formula for water. The 3 means that there are 3 molecules of water. So, 3H20 is just 3 molecules of water. h2o means 1 molecule of water with 2 hydrogen atom and one oxygen atom and 3h2o means 3 molecules of water.

Answer 2

$2H \: represent \: two \: atoms \: of \: hydrogen.$

$H_{2} \: represents \: a \: molecule \: of \: hydrogen \: gas \: which \: contains \: two \: hydrogen \: atoms.$

$H_{2}O \: represents \: a \: single \: molecule \: of \: water \: containing \: two \: hydrogen \: atoms\: and \: one \: oxygen \: atom.$

$3H_{2}O \: represents \: three \: molecules \: of \: water.$