1a. calculate the relative formula mass of magnesium oxide when the relative atomic masses are O=16 Mg=24 1b. calculate the percentage by mass of magnesium in magnesium oxide​

An example of technology is the a. addition of a side group to an organic molecule during synthesis. b. use of a new antibiotic to fight an infection. c. measurement of iron concentration in a water sample. d. study of atomic fusion reactions

What can be found in the ionosphere

The biomedical technique in which a part of the brain is destroyed with electric current is known as a. electroconvulsive therapy b. prefrontal lobotomy c. bilateral cingulotomy d. tardive dyskinesia