Maddie wanted to make a sugar-water solution to put in her hummingbird feeder. She found some sugar cubes and was about to drop them into a glass of water, when her brother suggested crushing the cubes before mixing. Was this a good suggestion? Why or why not?

this is a good suggestion

Explanation:

when the sugar cubes are crushed and they become a powder so its surface area increases. And as surface area is directly proportional to rate of reaction so the desired solution will be formed rapidly

Yes because the chunks of sugar that didn't dissolve fully would not stay in the water to provide a choking hazard for the bird. Thus being the reason to crush them.

Explanation:

second mirror gathers light from a faraway object and reflects it to another mirror. - a.

3.2x10^7