Under high pressure, real gases do not obey gas laws because their molecules?
have become more energetic
have become less energetic
have become smaller in size
decompose into atoms
start repelling each other
Correct answer is A
Van der Waals noticed the behavior of real gases at low temperature and high pressure possesses weak but short range forces.
Which of the following reactions is correct as as written?
FeCl2 + 3NH4OH → Fe(OH)3 + 3NH4Cl
Pb2O3 + 4HCl → PbCl2 + 2H2O
PbNO3 + H2S → PbS + 2HNO3
NaOH + H2SO4 → NaHSO4 +H2O
2NH4NO3 → N2 + 2H2O
Correct answer is D
No explanation has been provided for this answer.
2.2 M
1.1 M
0.22 M
0.11 M
0.20 M
Correct answer is C
No explanation has been provided for this answer.
XO3
X2O3
X3O2
XO2
None of the above
Correct answer is B
No explanation has been provided for this answer.
Hg2O
HgO2
HgO2
HgO
None of the above
Correct answer is E
Various oxides of mercury: Mercury(I) oxide (mercurous oxide), Hg\(_2\)O. Mercury(II) oxide (mercuric oxide), HgO.
No specific oxide of mercury is refered in the question.