Which of the following is not a sign that a chemical change has occurred?

-change in energy

-change in mass

-formation of precipitate

-change in color

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.

Identify and describe the three ways that mutations affect organisms.

An experimental procedure requires a 10 ml of acid to be dissolved