A heat lamp produces 26.5 watts of power at a wavelength of 6.5 μm. How many photons are emitted per second?

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

In which reaction is precipitation occurring?

Light waves are as they pass through the