Strontium oxide + ? =
stronium chloride

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

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.

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.