Fill in the coefficients that will balance the following reaction
a0h2+a1o2=a2h2o
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Ответ:
Balancing is making the number of atoms of each element same on both the sides (reactant and product side).
To find the number of atoms of each element we multiply coefficient × subscript
For example
contains
5 × 1 = 5 , Mg atoms and
5 × 2 = 10, Cl atoms
If there is a bracket in the chemical formula
For example
we multiply coefficient × subscript × number outside the bracket.......... to find the number of atoms (Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )
So 3 × 3 = 9, Mg atoms
3 × 1 × 2 = 6, P atoms
3 × 4 × 2 = 24, O atoms are present.
So
Let us balance the given equation
Reactant Side # of atoms of each element Product Side
2 H 2
2 O 1
Since O atoms are not balanced on the right side we multiply
by 2 so the equation changes to
Reactant Side # of atoms of each element Product Side
2 H 4
2 O 2
Now to balance H atoms on the reactant side we multiply
by 2 so we will have
Reactant Side # of atoms of each element Product Side
4 H 4
2 O 2
Balanced!!!
Ответ:
did she conect the wire to de batery?