Chemistry
Chemistry, 20.08.2019 20:50, zoeflynn

Why are salt alcohol both able to dissolve in order

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Chemistry, 23.06.2019 21:50, kayla6653
Absalon adds 1 g of salt to 1 l of room temperature water (25 °c). then, he starts a timer and observes what happens. he notices that it takes 1 minute for the salt to dissolve. he decides to repeat his experiment, and he adds 1 g of salt to another 1 l of room temperature water (25 °c). after he adds the salt, he starts a timer. but, instead of watching the salt dissolve, he stirs the salt and water with a spoon until it dissolves. he notices that it only takes 30 seconds for the salt to dissolve in his second experiment. why does the salt dissolve faster in absalon's second experiment? stirring the salt and water increases the polarity of the water molecules, which causes the ionic bonds of the salt to break. stirring the salt and water increases particle motion, which causes more collisions to occur between the water and salt. stirring the salt and water increases the surface area of the water, which causes more collisions to occur between the water and salt. stirring the salt and water increases the pressure on the solution, which causes the ionic bonds of the salt to break.
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Biology, 07.07.2019 10:50, alphaaz23415
When salt is mixed with water and stirred, the salt will dissolve, forming a solution. when sand is mixed with water, the sand will not dissolve. why will salt form a solution with water but sand will not? a) salt is pulled apart into two ions by the polar water molecules, and sand is not. b) sand forms complex crystals which dissolve much more slowly than non-crystalline salt. c) salt consists of only 2 atoms and is small enough to dissolve, while sand is too large. d) sand is much harder than salt and so it will not form a solution with water.
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Chemistry, 20.11.2019 22:31, mprjug6
Astudent wants to dissolve the maximum amount of caf2 (ksp = 3.2 x 10^−11) to make 1 l of aqueous solution. (a) into which of the following solvents should she dissolve the salt? i) pure water ii) 0.01 m hf iii) 0.01 m naoh iv) 0.01 m hcl iv) 0.01 m ca(oh)2 (b) which would dissolve the least amount of salt?
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