Consider an ideal gas that occupies 1L in a cylinder with movable piston under the pressure of 10atm. if the external pressure of 10atm compresses 9atm due to nine pieces of small removable blocks of equal weights and 1atm due to atmospheric pressure, calculate the expansion workdone by the gas when: I. the nine blocks are removed from the piston at once
II. eight blocks are removed from the piston at once
III. eight blocks are removed from the piston in two batches, i. e. four blocks at a time​

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 !

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i  

answer: mole of the gas

answer: mole of the gasexplanation: