2 H2 react with 1 O2 and form 2 H2O se the suggested models to represent the following chemical equations
1
1.2
D +
If Hydrogen(H) is Q and oxygen(O) is O Write the equation for
00 00 + OO + 000 000
If Magnesium(Mg) is D and oxygen(O) is O Write the equation for
C.
DO O
DO
If Iron(Fe) is and oxygen is o Write the equation for
OO oo
000
QO
ooo
2.3
n 3: Determine if a chemical reaction is balanced.
In a chemical reaction no atoms are lost or gained in the reaction, they are simply
The amount of atoms involved at the beginning of a reaction must be
found at the end of the reaction.​