The structure of which substances tends to exhibit the greatest hardness? a. pure metals b. pure nonmetals c. ionic compounds d. covalent compounds

Find the number of moles of argon in 364g of argon.

What type of organic molecule comprises the majority of a potato?

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons