What kind of bond forms when one element donates an electron to another
A. Covalent Bond
B. Hydrogen Bond
C. Ionic Bond
Ans: C. Ionic Bond
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Who is considered the first marine scientist?
A) Captain James Cook B) Hypatia C) Prince Henry D) John Harrison
Questions about the danger of a particular chemical hazard will relate to that chemical's
A) toxicity, exposure, and dose. B) exposure in the natural environment. C) toxicity and abundance in the environment. D) ability to dissolve in either water or oil.
Many people hear about atmospheric ozone depletion and wonder why we don't simply replace that which has been destroyed. Knowing about CFCs and how catalysts work, explain how this would not be a lasting solution.
A. Governments would be too slow to respond as they argued about who should shoulder the burden of undertaking such an endeavor. B. The amount of energy required to create and transport sufficient ozone to the stratosphere would be cost prohibitive. C. Any ozone we placed into the stratosphere would be destroyed by the same catalytic action that destroys naturally occurring stratospheric ozone. D. all of the above
How can you tell whether a sugar solution is saturated or not?
A. There will be a precipitate if the water is heated. B. As long as there are more water molecules than sugar molecules, there is a saturated solution. C. Add more sugar; if it dissolves, it is saturated. D. Cool the solution to see if there is a precipitate.