how many liters of 1.5 m hcl solution would react completely with 6.5 moles ca(oh)2?

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.

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

In 2002, the rare earth elements mine in mountain pass, california was closed because