Answer:
No.
Explanation:
No. There is 1 atom of Ca on the left and 2 Ca's on the right and 2 OH's on the left and 4 on the right.
The balanced equation is:
4OH- + 2Ca2+ ----> 2Ca(OH)2.
Answer:
Is not balanced
Explanation:
For an equation to be balanced there must be on each side of the equation the same amount of each atom.
2 OH− + Ca 2+ ----> 2 Ca(OH)2
On the left we have the following amounts of atoms:
Ca = 1
O = 2
H = 2
Total charges = 0
And on the right:
Ca = 2
O = 4
H = 4
Total charges = 0
We can see that on the right we have twice as many atoms as on the left, so we can delete a molecule of Ca(OH)2
2 OH− + Ca 2+ ----> Ca(OH)2
Now the equation is balanced because there are the same number of atoms on both sides and also the charges are equal in both sides.
