Question

When the following equation is balanced with the lowest whole number coefficients possible, what is the coefficient in front of Ca(OH)2?

Ca(OH)2 + H3PO3 yields H2O + Ca3(PO3)2

1
2
3
6

Answer 1

there would be 3

Answer 2

can u explain plz?

Answer 3

well when you balance the equation Ca(OH)2 + H3PO3 yields H2O + Ca3(PO3)2
because on the products side there are 3 Calcium atoms.
so the eqaution can balance to 3Ca(OH)2 + 2H3PO3 yields 6H2O + 1Ca3(PO3)2

Answer 4

but wouldn't the lowest coefficient be one? Ca(OH)2 + 2H3PO4 = 4H2O + Ca(PO3)2
Therefor the lowest coefficients for Ca(OH)2 is 1

Answer 5

@FriedRice

Answer 6

@Abhisar is he right or is the lowest coefficient 1?

Answer 7

If u'll use 1 then the equation will not get balanced.

Answer 8

ooo.. so if you use 3 it will work?

Answer 9

yes...

Answer 10

oh i need more practice on the basic balancing equations. however, thank you!

Answer 11

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