A student needs to use the metric system while measuring the length of a box. Which units should he use? AWNSER FAST PLEASEEE

Write a paragraph at least 10 sentences explaining how rocks are used today in society

In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need

How many lone pairs of electrons are on the central atom of no3- and what is the molecular shape? one, trigonal planar zero, trigonal pyramidal zero, trigonal planar one, tetrahedral one, trigonal pyramidal