How many lightyears are in 3.8 parsecs?

need the work for it too !! need it in 3 hrs max

Identify two types of chemical bonding in the source of dietary potassium

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas