All changes saved The graph shows the changes in the phase of ice when it is heated.
(-1,0)
= G(x) +R(6)
Q(x)
Phase Change of Ice
D
gas
rin
5.3x10
C
Temperature
(°C)
liquid
B-
solid
25
100
50 75
Time (min)
Which of the following temperatures describes the value of B? (4 points)
O 0 °C, because it is the melting point of Ice.
O 100 °C, because it is the boiling point of water.
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ALB
O Greater than 0 °C, because A represents the temperature at which ice melts.
BLIC SC
O Greater than 100 °C, because A represents the temperature at which water evaporates.

Which compounds have the empirical formula ch2o? a.c2h4o2 b.c3h6o3 c.ch2o2 d.c5h10o5 e.c6h12o6

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

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