What's the pH of these 4 substances combined with water?

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If the following substances were mixed with water would the pH be smaller than, larger than, or equal to 7?
a) CuCl2
b) CaCO3
c) KCl
d) Al(NO3)3

2007-03-30 08:12:58 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

a. slightly acidic
b. it's insoluble - water remains neutral
c. neutral despite being very soluble
d. quite strongly acidic.

2007-03-30 08:20:51 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋