If 8.00 g nh4no3 is dissolved in 1000 g of water, the water decreases in temperature from 21.00 degrees celsius to 20.39 degrees celsius. determine the molar heat of solution of the ammonium nitrate.

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

Which are forms of frozen water? check all that apply. dew frost hail rain sleet