1 point Louis has two sets of two gears (Set A and Set B) that he is using to build
two different machines. He has all the gears laying out separately, as
shown in the diagram above. Then he puts the gears into the machines so
that the gears inSet A are touching each other and the gears in Set B are
touching each other. Use the information in the diagram to answer the
question. After the gears have been touching for a while, which of the two
bottom gears will be cooler, and why?
LOW
ENERGY
40
50
60
70
80
HIGH
ENERGY
Set A
Set B
Top Gear
Top Gear
80
80
80
80
80
80
80
80
40
40
40
40
40
40
40
40
40
40
40
40
40

Consider the following system at equilibrium. caco3(s) ca2+(aq) + co32–(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? ccl4 co2 cuso4 na2co3

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely.analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?