In a room sound is emmitted from two different sources having the same power, determine the relative values of the sound intensities at a point 2m from one source and 6m from the other source.​

Water molecules have a strong attraction to each other because of hydrogen bonding, allowing water to move against gravity up a plant's stem through capillary action. true false

How many neutrons does an element have if its atomic number is 50 and its mass number is 166

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?