Answer:
D, C and A are the correct options.
B is less likely rather is a personal reference.
The iodine would move out of the baggie and the starch would change color
I’m not 100% sure but I think it’s small
Answer:
If a solution has a higher concentration of hydronium ions than pure water, it has a pH lower than 7. A solution with a pH lower than 7 is called an acid. As the hydronium ion concentration increases, the pH value decreases. Therefore, the more acidic a solution is, the lower its pH value is.
Explanation: