According to the balanced equation from Experiment 8 for the produced hydrogen gas, if 12.0 L of hydrogen gas was collected over water at 20.0 °C and 821 torrs, how many grams of Mg must have reacted? (R = 0.0821 L atm/ mol K) ​

Group of answer choices

12.5 g

12.8 g

13.0 g

12.7 g

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

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.

answerspecific gravity;