30. Which of the following atoms would form a trivalent anion?
A. Aluminium
B. Oxygen
C. Lithium
D. Nitrogen​

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

In an oxidation-reduction reaction, oxidation is what happens when a reactant

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?