With respect to their solubility in water, substances with nonpolar covalent bonds are__________, while substances with polar covalent and ionic bonds are__________.
Which of the following is not a property of water?
a. Water has a high heat capacity.
b. Water doesn't take heat with it when it evaporates.
c. Water is a polar solvent in which many solutes will dissolve.
d. Water serves as a cushion and lubricant in the body.
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Key Concepts
Properties of Water
High Heat Capacity
Polarity of Water
An enzyme is a:
a. biological catalyst that increases the concentration of the products.
b. biological catalyst that increases the concentration of the reactants.
c. chemical that is used in a reaction, after which it can no longer be used by the cell.
d. biological catalyst that works by bringing its substrates closer to their transition states.
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Acids dissociate in water to give hydrogen ions and an anion.
Which of the following would not result in an increase in reaction rate?
a. Increase in temperature
b. Particles in the solid phase
c. Presence of a catalyst
d. Smaller particle size
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
As a solution's pH rises, it becomes more acidic.
Match the following terms with the correct definition:
Endergonic reaction
Potential energy
Electrical energy
Anabolic reaction
Oxidation-reduction reaction
Chemical energy
Catabolic reaction
Kinetic energy
a. Energy in motion
b. Energy stored in chemical bonds
c. Reaction that consumes energy
d. A decomposition reaction
e. The energy of moving charged particles
f. Stored energy
g. Synthesis reaction
h. Reaction where electrons are transferred between reactants
