Despite the fact that stainless steel is much denser than water the stainless steel razor blade can be made to float on water. why?

The double edge stainless steel can float over the water surface just because it has an amount of surface tension. As the water exerts some force,F in response to the weight placed on its surface. Which makes the object floating on the surface of the water medium.

Explanation:

There are a number of elements found across the globe, each of the element has its own weight and acts differently when it interacts with the water medium. As some of them have greater density in there body being heavy, while others are light.

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 !