10. Where might we find a “Green World” in 1 Henry IV, and what makes it such?

True or False: buffers are chemical systems that significantly increase their pH when small amounts of acid or base are added.

True or False: chemical buffers should (ideally) consist of equal quantities of weak acid and weak base.

Which of the following devices are often used to measure the radioactivity of a substance?

True or False: when added to a metal, acids will generally cause the metal to corrode.

True or false: an outbreeding plant is a plant that is pollinated from another plant.

True or False: humans come into contact with radiation in their day-to-day life.

The half-life for radioactive isotope “Z” is 11 days.  If a patient receives 75 mg of “Z”, how many days will it take for the radioactive dose to decay to 1.22 mg?

Which of the following answer choices best describes the characteristics of parenchyma, collenchyma, and sclerenchyma plant tissues?

True or False: the pH of a solution that contains 1.0 x 10-8 M H3O+ ions is 1.00.