Quais são os compostos formados pelos pares Mg e Cl; Ca e O; Li e O; K e Br ?

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Draw metallic bonding if two copper