When carbonic acid is formed by a chemical reaction, it can release what into the water ? How does it break down and how does it effect the acidity of the water?

Carbonic acid is formed from the reaction between Carbon dioxide and Water.

H20+ CO2—> H2CO3

The Carbonic acid then undergoes a dissociation reaction to give the products:

1) hydrogen ion (H+)

2)hydrogen carbonate ion (HCO3-)

H2CO3—> H+ + HCO3-

The H+ ion formed from the dissociation is what reacts with the water and lowers the pH as a result of the increase in the power of hydrogen ions which subsequently lowers the pH of the water thereby making it acidic.

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles