Calculate the mass of magnesium chloride you would need to dissolve in 4dm of water to make a 0.9g/dm solution.

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.