Given the reaction: 2Na + 2H20 - 2NaOH + H2
How many moles of Na are needed to produce exactly 5.6 liters of He measured at STP?
A 1.0
B 2.0
C. 0.25
D. 0.50

Please try to give an explanation if you can

What is the value of keq for the reaction expressed in scientific notation

How much energy is made when a pice of wood burns. how do you know

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.