Consider the following situations: (1 ) a magnesium atom and two chlorine atoms join together to form a molecule of magnesium chloride; (2 ) water molecules interact with each other in a beaker; and (3 ) two carbon atoms and six hydrogen atoms join
together to form ethane. Rank the strength of the bonding interactions taking place in each situation, from the weakest bonds to the strongest bonds.
A) 1 < 2 < 3
B) 3 < 2 < 1
C) 2 < 3 < 1
D) 2 < 1 < 3
Answer: D
You might also like to view...
Oomycetes ("water molds") contain ________ in their cell walls, while most fungi have ________ in their cell walls
A) cellulose / chitin B) chitin / cellulose C) silica / chitin D) cellulose / silica
What would be the hypothetical outcome if the action of RecA were inhibited during the SOS response?
A. LexA would autolyse, and therefore the transcription of DNA repair genes would occur. B. LexA would not autolyse, and therefore the transcription of repair genes would occur. C. LexA would not autolyse, and therefore the transcription of DNA repair genes would not occur. D. LexA would autolyse, and therefore the transcription of repair genes would not occur.
Contraction of a skeletal muscle cell is initiated by the
A) release of acetylcholine by a neuron terminating at the neuromuscular junction. B) release of calcium ions by the neuron into the neuromuscular junction. C) electrical current traveling from the neuron directly into the muscle cell. D) hormones delivered by the blood supply to the nearby tissue. E) release of sodium ions by the neuron into the neuromuscular junction.
The compound that is an organic base containing chlorine and two phenolic rings and is used increasingly for hand scrubbing, neonatal washes, wound degerming, and prepping surgical skin sites is
A. quarternary ammonium compounds. B. carbolic acid. C. formalin. D. chlorhexidine. E. triclosan.