1. What is the ecological niche of the black bear? What information helps you describe its ecological
niche?

Which mathematical relationship should you us to convert moles of a substance into grams

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude

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?