Please Help! Using The Equation:

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?

This statement about matter and its behavior is best classified as a