Chemistry, 16.09.2021 14:20 dinecree

Francis is learning about dissolving at school. She reads descriptions about the rate of dissolving from four of her friends. George: The rate of dissolving can be fast or slow. The only thing you can do to speed up the rate of dissolving is to make the temperature hotter.
Manuel: The rate of dissolving can change. The rate of dissolving gets faster when the particles are smaller, the temperature is hotter, or the mixture is stirred.
Kim: The rate of dissolving speeds up when the particles are larger and the temperature is hotter. Stirring the mixture also helps increase the rate of dissolving.
Chris: The rate of dissolving can speed up or slow down. Heating a mixture, stirring a mixture, or using smaller particles will slow down the rate of dissolving.

Which of her friends has the best description about the rate of dissolving?

A George
B Manuel
C Kim
D Chris

Answers: 2

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 03:30

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

Answers: 1

Answer

Chemistry, 22.06.2019 06:30

What is the correct lewis structure for chloroform chcl3

Answers: 1

Answer

Chemistry, 22.06.2019 06:30

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

Answers: 2

Answer

Chemistry, 22.06.2019 17:10

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.

Answers: 1

Answer

You know the right answer?

Francis is learning about dissolving at school. She reads descriptions about the rate of dissolving...

Questions