molecules are often more than 1 of same element together in nature
like oxygen O is O2 is nature
in this assignment molecules are the number in front of the compound
so 3H20 means 3 molecules of H20 or water
compound are different elements together to make something else
al(oh)2
aluminum hydroxide or antacid
AL 1 O 2 H 2
total 5
molecule 1
Elements 3
3H2O
water
H 6 0 3
total 9
molecules 3
elements 2
NA2CO3
sodium carbonate or soda ash
NA 2 C 1 O 3
total 6
molecules 1
elements 3
one without a name is
FE2O3
iron oxide or rust
FE 2 O 3
total 5
molecules 2
elements 2
Co
C≡O
carbon dioxide
dangerous odorless gas
found in car & engine & generator & kitchen stove exhaust
dangerous because the human body can take it in its blood thinking it to be oxygen
C 1 O 1
total 2
molecules 1
elements 2