Cruea368 Cruea368

13-04-2015
Chemistry

Answered

Which compound of an element in period 3 reacts with water to form a solution with a pH greater than 7?
A. SiO2
B. SiCl4
C. NaCl
D. Na2O

Answer :

Nekoneko Nekoneko

13-04-2015

The answer is D. Nasub(2)O.
Nasub(2)O + H2O --> 2 NaOH
Nasub(2)O solution has pH much higher than 7

Answer Link

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