The answer i got was 2.55 M KOH
Over the course of a reaction the energy changes forms, in the beginning it may be used to produce a set of products, but in the end it can produce energy in the form of a combustion reaction.
C. The lowest mass will be the element in period 1, group 1 (this element is hydrogen)
Answer:
"The last digit in any number is referred to as the estimated digit."
Explanation:
So it should be 2
Ba(ClO3)2 --> BaCl2 + 3 O2
The fact that there are some ionic compounds doesn't matter. Just use the formulas.
barium chlorate = Ba(ClO3)2
barium chloride = BaCl2
Oxygen = O2
Now create the unbalanced equation
Ba(ClO3)2 --> BaCl2 + O2
And balance in the usual fashion. Count the atoms of each element on both sides
Ba = 1, 1
Cl = 2, 2
O = 6, 2
And oxygen is out of balance. But can be easily handled with a 3 coefficient on the right hand side. So:
Ba(ClO3)2 --> BaCl2 + 3 O2
And we have a balanced equation.
