A compound consisting of 43.64% phosphorus and 56.36% oxygen has a molar mass of 283.9 g/mol. Determine the molecular formula.

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

What is the relation between concentration of reactants and the rate of chemical reaction?

With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals