Most currents at the bottoms of lakes are density currents. Which human activity will have the greatest negative impact on density currents in a lake? A. planting trees near the shore of a lake planting trees near the shore of a lake B. creating man-made beaches near the shore of a lake creating man-made beaches near the shore of a lake industrial discharge of large amounts of heated water into a lake C. industrial discharge of large amounts of heated water into a lake D. people fishing in a lake​

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 !

hloride, what is the mass of calcium in

explanation:

b.

the accuracy of the data.