All living things contain in proteins, fats, and carbohydrates which can be recycled in various ways within an environment. Question 1 options:

mercury

selenium

gold

carbon

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *