if 35.2 g of water at 12.0oC are mixed with 72.8 g of water at 82.5oC, find the final temperature of the system.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

In a ball-and-stick molecular model, what do the sticks represent?

Which order shows the levels of organization from largest to smallest? organism, organ system, cell, organ, tissue organism, tissue, organ system, organ, cell organism, organ, organ system, cell, tissue organism, organ system, organ, tissue, cell