14. You have 100 g of ice water at 0 °C. 40 g of the ice water mixture is ice. How much energy does it take to melt the ice in the water, heat the water from 0 °C to 100 degrees,
and then produce 50 g of steam? Show all calculations.

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

alchemy hadn't scientific methods of study, appeal to mysticism and fantasy, the knowledge of chemistry and physics were modest at that time.

alchemy was - but as new rules were discovered it either changed into chemistry or it became "unscientific".