1) Which of the following best describes the following compound: Cu3N2 A) 1 cation and 1 anion B) 2 nonmetals C) A cation and a polyatomic ion D) 2 anions
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Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]

Which of the following words describe the reality that the universe looks the same from various perspective

Why do lunar and solar eclipse not happen every month