Fossils of the same species of life forms have been found on continents that are now divided by oceans. In one to two sentences, explain how this could be possible if a supercontinent did not once exist.

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Correct relationship between molecular formula and empirical formula

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?