Which of the following best describes the conditions created by el niño? when is that normally blowup to east get stronger waters off the coast of north america cool down and upwelling increases in proving the nutrients in the water. wednesday normally blood to the west get stronger waters off the coast of south america cool down and upwelling increases improving the nutrients in water. when is the normally blowup to the west slacken waters off the coast of south america walk up and upwelling decreases reducing the nutrients in the water

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

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.