Lead bullion may contain trace amounts of impurities such as zinc metal. Describe what happens to this zinc during electrolysis and explain why the pure lead cathode does not become contaminated with zinc. Help please

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.

Agas occupies 475 cm^3 at 313k. find its volume at 367k. you must show all of your work to receive credit. be sure to identify which of the gas laws you will be using

What are transitions between a liquid and a solid called? identify which way they are transitioning