Exothermic reactions:
a) are always spontaneous
b) are always spontaneous and lose free energy to the surroundings
c) release heat to the surroundings
d) lose free energy to the surroundings
Answer: c) release heat to the surroundings
You might also like to view...
Cotyledons develop into
a. leaves. b. roots. c. stems. d. all of these
Biological membranes are held together mainly by
a. hydrogen bonds between lipid molecules. b. hydration layers over lipid molecules. c. exclusion of the nonpolar regions of lipids by water. d. hydrogen bonds between water molecules. e. surface tension at the interface between layers of water molecules.
What is the most common cause of a miscarriage?
a. cervical incompetence b. genetic disorders of the embryo or fetus c. infections d. trauma e. malnutrition of the mother
The sun shining on a tidal pool during a hot day heats the water. As some water evaporates, the pool becomes saltier, causing _____
A) an increase in its carbon dioxide content B) a decrease in its oxygen content C) an increase in its ability to sustain aerobic organisms D) a decrease in the water's density