3 Using the average experimental value for the density of your unknown metal, calculate the
agine a large sample of the same metal weighed 950 pounds. Calculate as volume in cubic meters using
dimensional analysis fie, use conversion factors and show unit cancellation. Start with 950 lbs...)

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 !

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds