The temperature in the laboratory is posted as 251k what is the temperature in degrees celsius

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

What is the mass of sodium in 3 moles of sodium chloride

What type of electromagnetic waves does the human eye see as the colors red blue or green a visible light waves b radio waves c infrared waves d microwaves