One milliliter of a certain liquid has a mass of 0.76 g, so its density is 0.76 g/ml. the liquid is often used as a cleaner or a
disinfectant and evaporates when placed on warm materials. however, caution must be taken when using the liquid because it is
also highly flammable.
which of the following is a chemical property of this liquid?
a. one ml of the liquid has a mass of 0.76 g.
b.
the liquid is flammable.
c.
the liquid has a density of 0.76 g/ml.
d.
the liquid evaporates when placed on a warm object.
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Hot air balloons float in the air because of the difference in density between cold and hot air. in this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. to do this, use the following variables and make these assumptions: the combined weight of the pilot basket together with that of the balloon fabric and other equipment is w. the volume of the hot air inside the balloon when it is inflated is v. the absolute temperature of the hot air at the bottom of the balloon is th (where th> tc). the absolute temperature of the cold air outside the balloon is tc and its density is ďc. the balloon is open at the bottom, so that the pressure inside and outside the balloon is the same. as always, treat air as an ideal gas. use g for the magnitude of the acceleration due to gravity.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?