Answer:
746 moles of H2O are been produced from 373 moles of Al.
Explanation:
For every 3 moles of aluminum, you get 6 moles of H2O (double). Therefore, every 373 moles of Al, you will get double as well, that is 746 m.
The control is necessary to make sure that you can tell the difference between the regular, non changed experiment, and the change that happens.
Basically, the control helps you to measure, or observe, the difference in experiments.
And example would be using pills, or flavor water, to see how it affects people.
The control would be the group that either doesn't receive pills or water. This is basically to see how it is normally. The norm.
Is this an experiment? If so, if you have a small environment, compare it to a larger one, like your backyard for instance. Does the small environment have the same things as your backyard? Are they different? Compare them both like the backyard would have trees and with bird nests, and bushes, and all sorts of living organisms. More than your small environment would right? Your small environment gets the same nutrients as the large environment such as Carbon Dioxide, Sunlight, Water. Does your small environment have any animals or insects? You could use that as a comparison too.
I Hope This Helped!
A sodium chloride is like most of the ionic compounds
existing here on earth in which they are composed of having a high melting
point and by this, if found in underground rock deposits, they are usually in a
form of solid.
I’m not 100% sure but I think it’s C