N2 + 3H2 → 2NH3 This time, you’ll use a different method to count the atoms. Multiply the coefficient by the subscript for each atom. For example, to find the number of hydrogen atoms in 3H2, multiply 3 by 2. Use the following table to organize your work. Fill in the number of atoms in the reactants and products in the table.

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.

the answers are

c and c