1) Which substance is a binary compound?
a) ammonia
b) argon
c) glucose
d) glycerol
2) How would the graph(the line)look like if it were to best represent the variation in the vapor pressure of water as temperature changes? (constant, inc., dec., etc...)
3) C3H8+5O2 (arrow to the right) 3CO2+4H2O
Which of these could be removed from the above reaction to increase the rate of reaction over time?
a) C3H8 & O2
b) C3H8 & CO2
c) O2 and CO2
d) CO2 and H2O
4) same as #3, but instead of removed, it's ADDED
5) Which process does random molecular motion explain?
a) How solids dissolve in liquids
b) how liquids evaporate
c) how solids melt
d) how precipitation forms
6) Sally adds a teaspoon of sugar to a cup of water. Over time the sugar dissolves and is distributed evely throughout the water. This occurs because of-
a) random molecular motion
b) uniform "
c) decreasing "
d) increasing "
7) How many hydroxide ions are needed to completely neutralize 1.0 L of 0.50 M HCl?
a) 1.5 x 10^23
b)
2007-04-04
15:14:55
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1 answers
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asked by
eeyorecutie
2
in
Chemistry