If 0.158 moles of nonane are combusted in excess oxygen gas according to the reaction below, what total volume of gas will be
produced at 26°C and 789 torr?
C9H20(1) +1402(9)— 10H2O(g) + 9CO2(g)

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?