Write the overall equation for the reaction occurring in a lead-acid cell during dis-

charge. What happens to the sulfuric acid

concentration during this process? Why is it

possible to use a hydrometer, which meas-

ures the density of a liquid, to determine if

a lead-acid cell is fully charged?

b is the correct

the movement of aircraft through clouds can even cause lightning strikes. a single lightning event is a "flash", which is a complex, multi-stage explosively ejected.

explanation:

and the person below goggled it.

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- decrease the number of plants and animals living in the water.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.