Guided Practice Activity-use the pen tool to write in the coefficients
to balance the equations then fill in the number of each type of atom
by typing in the number into the fill-in boxes.
1) Determine number of atoms for each
element.
2) Pick an element that is not equal on
both sides of the equation.
3) Add a coefficient in front of the
formula with that element and adjust
your counts.
4) Continue adding coefficients to get the
same number of atoms of each element
on each side.
Mg+0₂ →
2
Mg =
0=
0=
→
8
MgO
Mg =
0=
H₂0₂ H₂0+ 0₂
H=
2
H=
0=
