Choose the ionic compound from the following choices (not multiple choice, more than one answer)
a. carbon monoxide
b. potassium bromide
c. phosphorus trifluoride
d. cesium chloride

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?

The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?