Which of these experimental designs could lead to bias?
a) two mice are given the choice between swiss and american cheese.
b) phil and bart race down the street to determine who is the fastest.
eliminate
c) a car company pays participants to test drive and evaluate their new auto.
d) a private company uses a random taste test of three different, unidentified soft drinks.

Under what conditions will a gas be most likely to exhibit the ideal gas properties predicted by the ideal gas law? 1)high pressures and high temperature, because particles are forced closer together with higher kinetic energy, so intermolecular forces of attraction are weaker 2)high pressure and low temperature, because particles are forced closer together and moving slower, so the volume of the particles is less significant 3) low pressure and high temperature, because particles are spread farther apart and moving faster, so the intermolecular forces of attraction are weaker 4)low pressure and low temperature, because particles are spread farther apart with lower kinetic energy, so the volume of the particles is less significant