Calculate the amount of heat gained if 41.69 grams of water increased in temperature from 25.78 degrees Celsius up to 76.70 degrees Celsius.

According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.