Which of the following elements is the only element in group 1 that's a nonmetal a isn't a solid at room temperature?
Hydrogen (H)
Cesium (Cs)
Potassium (K)
Sodium (Na)

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize

Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? a) the need for a coenzymeb) allosteric inhibitionc) competitive inhibitiond) insufficient cofactors