106 .
I II
Combining equal volumes of 0.2 M AgNO 3 and 0.2 M HCl
does not produce a precipitate of AgCl
BECAUSE the silver ion is rapidly reduced to silver
metal, producing chlorine gas.
107 .
I II
When a hydrocarbon is combusted in air, carbon monoxide is the
major product
BECAUSE air contains much more nitrogen
than oxygen.
108 .
I II
If equal masses of sodium metal and chlorine gas are allowed to react,
some sodium will be leftover after all the chlorine is used up
BECAUSE the reaction requires twice as
many atoms of chlorine as
sodium.
109 .
I II
Reactions happen faster at
higher temperatures
BECAUSE as temperature increases, there is also an increase in the number of
collisions with the required activation energy for a reaction to occur.
110 .
I II
Candles can be safely stored at room temperature, even though
their reaction with air is spontaneous at room temperature
BECAUSE the reaction that takes place when a
candle is burned involves a decrease
