Answer:
84g Thus, 84g of KNO3 must be dissolve in 100 grams of water to form a saturated solution at 50 oC.
and 136 of KNO3 must be dissolve in 100 grams of water to form a saturated solution at 70 oC.
Explanation:
15.0 g/342.2965= .0438 mol
1) KCl
Potassium Chloride is an ionic bond because it exists between a metal and a nonmetal. The Potassium ion is a cation, carrying a +1 charge; the Chlorine is an anion, carrying a -1 charge.
The correct answer ; coal
Why?
Coal forms over millions of years, not just that, even now, our earth doesnt have resources as it did millions of years ago to form coal in the first place
other options are renewable because it can be renewed over, and over again
