Which formula represents the compound commonly known as phosphine?
a)ph
b)ph2
c)ph3
d)ph4

The answer is: C) ph3.

Explanation:

Phosphine (PH3) is a colorless gas at room temperature and very toxic. It is odorless when in a pure state in concentrations of up to 282 mg / m3 (200 ppm). Phosphine is poorly soluble in water, being soluble at 2.5 - 15% v / v in most organic solvents at room temperature.

The answer is: C) ph3.

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

elements make up everything, and they combine to make compounds.

the answer is c