How is the bond in F2 different from the bond in KCl?
A. F2 is covalent and KCl is ionic
B. F2 and KCl are both ionic
C. F2 is ionic and KCl is covalent
A
You might also like to view...
Which of the following statements about water is false? a. Hydrogen bonds can form between water and other polar substances
b. The oxygen atom in a water molecule carries a slight negative charge. c. The hydrogen atoms in a water molecule carry a slight negative charge. d. The three-dimensional structure of ice owes its form to hydrogen bonding between water molecules.
Sensory nerves communicate the strength of a stimulus by
a. the magnitude of the voltage change across the membrane during the action potential. b. the speed at which the action potentials are transmitted down the axon. c. the number of action potentials transmitted down the axon. d. a and b. e. a and c.
Respond to statements 126–129 with reference to the four glands
or structures of the mammalian gastrointestinal tract listed below. a. salivary glands b. stomach mucosa c. intestinal mucosa d. pancreas M 126. The enzyme pepsin is produced there. M 127. The enzyme carboxypeptidase is produced there. D 128. The fat-digesting enzyme, lipase, is formed there. D 129. The peptide-digesting enzyme, aminopeptidase, is produced there.
During exercise, your heart rate can increase dramatically in order to meet the metabolic demands of your tissues. If your heart rate increased to 144 beats per minute, approximately how long would diastole last in a single cardiac cycle?
A) 0.2 second B) 0.6 second C) 0.8 second D) 1.6 seconds