Guaifenesin (C1oH1404) is a common over-the-counter expectorant. What mass (in g) of oxygen is in 200. mg dose of Guaifenesin? (Molar mass of C10H1404 = 198.2 g·mol-1)

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?

The diagram shows the relationship between scientific disciplines.the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a.physics b.biology c.chemistry d.metallurgy