Question

Which of the following reactions is balanced?
A. CaCl2 + 2H2CO3 CaCO3 + HCl
B. 2CaCl2 + H2CO3 CaCO3 + HCl
C. CaCl2 + H2CO3 2CaCO3 + HCl
D. CaCl2 + H2CO3 CaCO3 + 2HCl

Answer 1

do you know how to balance equations?

Answer 2

No

Answer 3

basically saying its not hard
u just need to look at number of something on left side and have same number of that something on the right side

Answer 4

CaCl2 + 2H2CO3--> CaCO3 + HCl
there is 1 Ca on the left side and 1 Ca on the right side
there are 2 Cl on the left side and only 1 Cl on the right side
there are 4 H on the left side and only 1 H on the right side
there are 2 CO3 on the left side and only 1 on the right side

as u can see it's not balanced

Answer 5

so do same thing for the other ones and you will get your right option :)

Answer 6

Ah I see

Answer 7

yeah :) if u don't get something, let me know :)

Answer 8

I can't figure out which one is balanced?

Answer 9

Wait D?

Answer 10

bingo! :)

Answer 11

Thank you!

Answer 12

u r welcome :)