Select the statement that is NOT true about venting during an extraction.

A. The separatory funnel stem should not be pointed towards any person while venting.
B. The stopper must be held in place while venting.
C. The stopper must be held in place while venting.
D. The separatory funnel must be inverted before venting.

Option B and C are not true

Explanation:

The statement is not true because the stopper has to be removed to release the pressure in the funnel to allow the liquid flow and if it is not removed, the vacuum formed above the liquid and bubbles would prevent proper draining or venting.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.