Question 12 of 35 : Given that a gas mixture contains: 79 mole %
N2, 17 mole % 1602, and 4.0 mole % 1802,
calculate the mole fraction of 1802.
0.20​

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car