Exam 2: An Introduction to the Chemical Basis of Life

When two adjacent atoms of similar electronegativity share a pair of electrons, ________. (Select all that apply)

Acid rain is a serious environmental problem. A sample of rainwater collected in the Adirondack Mountains had an H⁺ concentration of 10^-4 mol/L. The pH of this sample was ________.

When two adjacent atoms unequally share a pair of electrons, ________. (Select all that apply)

When a pair of valence shell electrons are shared by two atoms with significantly different electronegativity values, ________.

Glucose and fructose represent ________ isomers. (Select all that apply)

What is the chemical mechanism by which cells degrade polymers into monomers?

In the chemical equation below, glucose is a(n) ________.

Valence shell electrons ________. (Select all that apply)

Which of the following represent ways to increase the molecular diversity of organic molecules? (Select all that apply)

A ________ is the substance used to dissolve materials.

The molecular weight of glucose is 181.18 g/mol. To make 250 ml of a 0.25 M glucose solution, you would dissolve ________ g of glucose in 250 ml of water.

Acids ________. (Select all that apply)

When an atom loses a valence shell electron, it ________. (Select all that apply)

An aqueous solution ________. (Select all that apply)

Hydrogen bonds between water molecules in solid form ________. (Select all that apply)

Each proton and neutron have a mass of one atomic mass unit (amu). Using this information from the periodic table, determine the mass of sodium (Na).

Which functional group acts as an acid by donating a hydrogen ion to the solution?