Chemistry help needed! someone check my answers... please?

Question

Match each of the following equations with the letter that tells what the pH of the final solutions that form would be.

a. low (about 1-2)
b. moderately low (about 5-6)
c. high (about 13-14
d. moderately high (about 8-9)

1. ___ NaOH + H2O -->

2. ___ NH3 + H2O -->

3. ___ H2O + CO2 -->

4. ___ HCl + H2O -->


1.B 2.D 3.A 4.C?

Answer 1

1.C 2.D 3.B 4.A

Answer 2

I dont think that's right. Because a strong acid (HCl) is supposed to have a low pH.

1. C (because NaOH is a strong base)
2. D (NH3 is a weak base)
3. B (weak acid)
4. A (HCl is a strong acid)

Answer 3

1. C
2. D
3. B
4. A

Very acidic is very low pH and Hcl is most acidic

Very basic is very high pH and NaOH is most basic.