It it important because it makes people wonder how things work and are made which makes it so they want to move forward with experiments <span />
1.Subscript,how many hydrogen molecules there are
2.No it is not balanced,oxygen is less than represented.
Answer:
um.. is this a quiz or what girl...
Explanation:
According to the analysis, Molarity is amount mole per volume(1L). the amount in mole would be molarity × volume in litres.
0.500M × (250/1000)L= 0.125moles.
I hope this helps**