100.000g of water at 80.0oc was mixed with an equal amount of cool water in a calorimeter. the final temperature of the water in the calorimeter is 50.0oc. what is the heat (q) in kilojoules for the hot water? (specific heat for water is 4.18j/goc).

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.