Find the limit:  a) 

Write an equation of the line containing and perpendicular to   .   Express your answer in slope-intercept format. 

Simplify. Answer should not contain any negative exponents.

Simplify, working problem in scientific notation format. Write answer in scientific notation:

Simplify. Answer should not contain any negative exponents.  

What is the concentration of SO42- ions in the solution in M? Enter a numeric response ONLY. DO NOT include the unit.. Report your answer with 3 places after decimal. Use the rounding rule as appropriate.

Consider the intermolecular forces present in a pure sample of each of the following compounds: CH₃CH₂OH and CH₃COCH₃. Identify the intermolecular forces that these compounds have in common.

As a pure substance, which of the following could experience dipole-dipole interactions? I. CO₂ II. HCl III. CCl₄

A 5.31 g sample of compound that contains only hydrogen and sulfur was combusted, and yielded 10.0 g of SO₂ and 2.81 g of H₂O. The molar mass of the compound is 68 g/mol. What is this compound’s molecular formula?

Dispersion forces would be weakest in which of the following substances?