In an experiment described in a chemistry lab book, the directions state that after mixing two chemicals (A and B) and waiting 5 minutes that A will be oxidized. This means that:

A. chemical A has gained energy in the form of heat from chemical B.
B. chemical A has lost energy in the form of heat to chemical B.
C. chemical A has lost electrons to chemical B.
D. chemical A has reacted with oxygen.
E. chemical A has gained electrons from chemical B.


Answer: C

Biology & Microbiology

You might also like to view...

Which receptor type helps a gymnast to know when to unfold from a back flip?

a. mechanoreceptors b. photoreceptors c. chemoreceptors d. thermoreceptors e. nociceptors

Biology & Microbiology

The cuticle helps a plant conserve water by ____

a. covering the stomata b. reducing a plant’s capacity for photosynthesis c. absorbing visible light d. restricting the amount of water a plant’s root absorbs e. restricting the amount of water vapor that diffuses out of aboveground parts.

Biology & Microbiology

The enzyme used by HIV that allows it to make DNA from RNA is

a. DNA ligase. b. helicase. c. restriction endonuclease. d. reverse transcriptase. e. cholinesterase.

Biology & Microbiology

Which of these naturalists synthesized a concept of natural selection independently of Darwin?

a. george lyell b. alfred wallace c. jean baptiste de lamarck d. charles lyell e. george-louis buffon

Biology & Microbiology