The specific heat of copper is 0.385 J/gºC. A 95.0 g block of copper is heated to 77.9°C and placed into a calorimeter that contains 42.0 mL of water at 20.4 degrees * C . Assuming no heat loss, what will be the final temperature of the copper and water?

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

The element that has the greatest electronegativity is