A chemist is synthesizing a new compound and wants to predict whether it will be polar or nonpolar. The compound has a central atom with no lone pairs and all bonded atoms are the same. Based on this information, what is the polarity of the compound?

If the volume of a gas is doubled while keeping temperature constant, what happens to the pressure according to the ideal gas law?

Which of the following is an example of applying the ideal gas law to calculate the density-derived molar mass of a gas?

Which structural feature would most significantly increase the surface tension of a liquid?

During a phase change experiment, a substance changes from liquid to gas. What happens to the kinetic energy of the molecules?

A researcher observes that a certain solid material has different physical properties when measured along different axes. Which characteristic best explains this observation?

Which of the following pieces of evidence best supports the conclusion that, as stated by Beer’s Law, absorbance is directly proportional to concentration?

Which factor increases the strength of London dispersion forces?

What is the absorbance of a solution if its molar absorptivity is 100 L/(mol·cm), the path length is 1 cm, and the concentration is 0.5 mol/L? (Use A=abc)

A student notes that the second ionization energy of an element is significantly higher than the first. What does this indicate about the element?

Which principle explains the order in which electrons fill atomic orbitals?

Calculate the percent composition of oxygen in calcium nitrate, $$Ca(NO_3)_2$$, using the data provided in the table.

Which element has the highest electronegativity on the periodic table?

What is the major difference between a homogeneous and a heterogeneous mixture?

All of the following statements about converting grams to moles are true except:

While attempting to predict ionic charges, a student assigns a positive charge to an element in the halogen group, expecting it to lose electrons. What principle did the student fail to apply correctly?

A chemist prepares a solution by dissolving $$29.22~g$$ of sodium chloride in water to make $$500~mL$$ of solution. Calculate the molarity of the solution.

Using the data provided above, calculate the specific heat capacity of the substance in $$\text{J/(g}\cdot°C)$$. Round your answer to two decimal places.