Identify each of the following molecules or compounds as ionic, polar covalent, or nonpolar covalent.
a. H2O _________
b. LiI _________
c. C10H22 _________
d. N2 _________
e. MgBr2 _________
f. H2S _________
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Identify each of the following molecules or compounds as ionic, polar covalent, or nonpolar covalent.
a. H2O _________
b. LiI _________
c. C10H22 _________
d. N2 _________
e. MgBr2 _________
f. H2S _________
What are hydrogen bonds, and how do they form?
Describe what takes place during a chemical reaction.
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
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.
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.