Which factor is a characteristic of an acid?
a: non-Corrosive
b:soapy
c:sour
d:slippery
Which factor is a characteristic of a base?
a:soapy
b:sour
c:non-corrosive
d:slippery
An unknown substance has a pH of 4.0.
Which kind of substance is it?
A:neutral
B:buffer
C:acid
D:base
Which example is a base?
A:hydrogen
B:CO
C:soap
D:HCI
Which statement is the difference in acidic power between pH 3 and pH 2?
A: ph 2 is 10 times more basic than pH 3
B: pH 3 is twice as basic as pH 2
C: pH 2 is 10 times more acidic than pH 3
D: pH 2 is twice as basic as pH 3
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