Exam 2: The Chemistry of Life

Which of the following represents a simple sugar (also called monosaccharides)?

What are the four classes of large organic molecules important to life on Earth?

What will be accomplished by lowering the activation energy of a reaction?

What is another name for the polymers of carbohydrates?

Based on the suffix,a molecule of "maltose" is most likely what type of macromolecule?

If the number of protons in an atom does not match the number of electrons,the atom is called an ________.

The typical carbon atom is described in the periodic table by the accompanying box.How many protons are in a typical oxygen atom?

The chemical name for table salt is sodium chloride,or simply NaCl.What type of chemical is NaCl?

What is the maximum number of single covalent bonds a carbon atom can form with other elements?

What is a trace element?

Why is one side of a single water molecule partially negative while the other side is partially positive?

Select the most complete explanation of what the pH scale measures.

Individual water molecules are held to one another by relatively weak ________ bonds.

All lipids are ________.

Which of the following large organic molecules include table sugar?

How many neutrons are in a typical oxygen atom?

The bond in which bonded atoms share electrons is called a(n)________.

Identify the part of the atom that most determines the chemical properties of the atom.

While the maximum number of electrons required to fill the outermost shell of an atom varies depending on the size of the atom,almost all of the smaller atoms (atomic numbers 2-20)are considered stable (nonreactive)when they contain ________ electron(s)in the outermost shell.

What are the ecological consequences of acidification of rain and oceans?