Which option is a solution that is 20% (v/v) methanol in water?

Explanation:

1.The solution contains 20 mL of methanol and 100 mL of water.

2.The solution contains 20 mL of methanol and 80 mL of water.

3.The solution contains 20 g of methanol and 100 mL of water.

4.The solution contains 20 g of methanol and 80 mL of water.

20 % volume/volume methanol in water contains 20 mL of methanol and 80 mL of water.

Explanation:

Total volume of the solution= 20 + 80 = 100 mL

your parents i think this could be it

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.