The answer is (a) 30g. Zinc = 30. 1 mole = 30 x 1 = 30g
Answer:
Due to the accumulation of static charges/due to static electricity
The chemical bonds in CH4 are all single bonds. C only can bond 4 times because it needs 8 electrons in it's outer shell and only has four right now. The bonds represented are all single bonds because there are two electrons present on each side of the carbon. Two electrons, in this case, equals one bond.
Electricity grids will produce surplus power
Тhe arrow should point to the atom with greater electrical energy, in the case of the chlorine atoms