Which one of the following is most likely to represent an example of a human factors incident?

The third brake light in the cars plays a vital role in distracting other drivers

The Batman squirt gun was a bad design because:  

Which of the following is a reason why humans can be poor decision makers?

With regards to human factors, the “magic number” of judgments one can typically make along a given dimension is:

We dissolve 12.25 g of sugar in 1000.0 g (i.e. 1.0 kg) water. What is the mass percent of sugar in the solution?

Exactly 17.0 mL of a H2SO4 solution was required to neutralize 45.0 mL of 0.235 M NaOH. What was the concentration of the H2SO4 solution? H2SO4 (aq) + 2NaOH (aq) → 2H2O (l) + Na2SO4 (aq)

A 0.20 M solution of an electrolyte has a pH of 4.0. The electrolyte is:

Solubility of gases in water:

You have 10.0 g each of Mg, N, Bi, Ni and Na. Which contains the smallest number of moles?