Answer:
atom is electrically neutral because
the no.of protons is equal to no.of
electrons.
Therefore the negative charge and
positive charge cancels out.
Hydrogen peroxide is another way of dihydrogen dioxide
So,
H2 + O2 = H2O2 or 1 hydrogen per 1 oxygen
Explanation:
perimeter of circle - 2pieR
- pie D
radius R - 7 cm
perimeter- 2×22/7×7 (7 and 7 got cancalled)
2×22
44 cm