Which is a practical application of boiling-point elevation?
a. cooling a supersaturate...
Which is a practical application of boiling-point elevation?
a. cooling a supersaturated sugar-and-water solution to form rock candy.
b. burning coal to make the steam that powers a steam engine.
c. adding antifreeze to water in a car radiator in summer to raise the boiling point.
d. boiling sea water to recover the salt it contains.
Answers: 2
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It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.
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Which of the following would not diffuse through the plasma membrane by means of simple diffusion? 1 oxygen 2 glucose 3 a steroid hormone 4 a lipid soluble vitamin
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If 4.8 moles of x and 3.4 moles of y react according to the reaction below, how many moles of the excess reactant will be left over at the end of the reaction? 3x + 2y โyieldsโ/ x3y2. a. 1.7 mol y left over b. 1.6 mol x left over c. 0.2 mol y left over d. 0.1 mol x left over
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Chemistry, 23.06.2019 15:30
Sodium chloride can be made as follows: 2na + cl2 ? 2nacl i calculate the maximum amount of nacl possible if 2.3 g of sodium was reacted with excess chlorine. show all your workings.
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