A standard soft drink can has a volume of 0.355 L. An empty can is sealed while
holding air at 1.0 atm of pressure. When the can is crushed to 0.125 L, what is the
pressure inside the can?

0.35 atm

Explanation:

To solve this problem, we use Boyle's Law: , where P is the pressure and V is the volume.

Here, V_1 = 0.355 L, P_1 = 1.0 atm, and V_2 = 0.125 L. So, just plug these values into the equation:

(1.0) * (0.355) = * (0.125)  ⇒   ≈ 0.35 atm

Thus, the pressure is 0.35 atm.

Hope this helps!

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 !