Im trying to understand how to solve chemical problem
like
mg + o2 >mgo

Write skeleton equations for the following reactions c. aluminum(s)+copper(i) chloride(aq) > aluminum chloride(aq)+copper(s)

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.