A 3.6g food sample is burned completely in a calorimeter that contains 1000. g of water. The temperature of the water increases 23.65 °C. How many Calories does the food have per gram?

Apure solvent has a vapor pressure the vapor pressure of a solution. a. equal to b. lower than c. higher than

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Classify this reaction: 2al+n2-> aln.