Convert 4.5 km to feet. (note: 2.54 cm = 1 in; 12 in = 1 ft) O 1.4 x 10-2 ft
O 1.8 x 10-3 ft
O 1,400 ft
O 1.5 x 104 ft
O 1.8 x 103 ft

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.