Is heated water more or less dense than the melted snow and rainwater

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

How many neutrons does a atom of cobalt have?

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.