1.True or false A. When water is added to an acid solution the pH changes. B. A
ID: 860177 • Letter: 1
Question
1.True or false
A. When water is added to an acid solution the pH changes.
B. A solution of CO2 in water is acidic
C As the [H+] in water increases the pH increases
D. All isotopes are radioactive.
E. When an atom emits beta radiation it becomes a different element.
F. The major elements in air are nitrogen and argon.
G In two half lives the atoms of an isotope are completely
gone.
H. Agricultural chemicals can be a source of water pollution.
I. One function of auto catalytic converters is to convert CO to CO2.
J. 10.0g of O2 gas in a 10.0L container has the same pressure as 10.0g
of Cl2 gas in a 10.0L container both at the same temperature.
Explanation / Answer
) ............True
B).............True
C) ............True
D) .............False
E)..............True
F) ............False
G).............False
H).............True
I).............True
J)..............False
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