Question

PLEASE HELP WILL MEDAL

Which statement about a compound on this pH scale explains why it is an acid?
Physical Science assessment graphic

A.
RbOH is an acid because its pH is greater than 7.

B.
HCl is an acid because it is the first compound listed on the pH scale.

C.
HIO3 is an acid because its pH is closest to 7.

D.
HBr is an acid because its pH is less than 7.

Answer 1

This should be in a science section

Answer 2

I know. But know one helps.

Answer 3

acids have a pH less than 7

Answer 4

So d @welshfella

Answer 5

^Correct

Answer 6

thanks

Answer 7

Since pure water has a PH of 7...anything lower = acid and anything higher = base