If carbon-14 has a half-life or 5,730 years, how much of a 50g sample of carbon-14 would be left after 2 half-lives?

In an experiment involving an enzyme, the pH is raised from 2 to 11. What will be the most likely effect of this on the reaction?

Which describes the polarity in a water molecule? partial negative charge on the oxygen atom because its electrons are pulled toward the hydrogen atoms partial negative charge on the oxygen atom because it pulls electrons from the hydrogen atoms

The molar mass of glucose is 180.18 grams per mole. Which of the following is the molecular formula of glucose? CHO C3H4O3 C6H12O6 C12H24O12

What are the characteristics of allosteric enzymes? a. They conform to Michaelis-Menten kinetics. b. They may have binding sites for regulatory molecules that are separate from active sites. c.

What is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?

Which is NOT a property of gold? A. rare B. tarnishes C. malleable D. corrosion resistant

The element rubidium has two naturally occurring isotopes. The atomic mass of 85Rb (72.17 percent abundant) is 84.911794 amu. Determine the atomic mass of 87Rb (27.83 percent abundant). The average atomic mass of Rb is 85.4678 amu.

Describe what you can do to slow down, or stop the continuous negative human treatment of our aquatic biomes.

If the hydrogen ion concentration is 10-7M, what is the pH of the solution? Show all work.

When it is raining water is returning to earth as a water cycle stage called