A 3.50 L gas sample at 20°C and a pressure of 86.7kPa expands to a volume of 8.00L. The final pressure of the gas is 56.7kPa. What is the final temperature of the gas in degrees Celsius?

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.

What is formed when amino acids form long chains or polymerize