Potassium chloride
Potassium is the metal cation and chloride is the nonmetal anion
All the other options have two non metals
The open spaces in water's crystal structure make it possible for <span>aquatic life to exist at the north pole.
It is good to know that, at the north pole, when the temperature drops below zero, only the top layer of the water freezes. Underneath this freezing layer, water remains in its liquid form, thus, allowing marine life to exist. As for oxygen, it is also trapped underneath the ice layer. </span>
NH4+ is an example of a <span>Brønsted-Lowry acid</span> since it will donate a proton
Answer:
the first 4
Explanation:
all but the last one is true with sunspots
i think the answer is A. water flowing downhill and spinning turbines
