How does the chemical equation for photosynthesis shown below demonstrate the law of conservation of mass?
600, + 6H20 (+ light) → CH20 + 502
A. The same number of atoms of each element is present both before and after the chemical reaction.
B. The same number of each kind of molecule is present both before and after the chemical reaction.
C. The same amount of water is present both before and after the chemical reaction.
D. The same amount of glucose (CH2203) is present both before and after the chemical reaction.

a electronegativity decreases beacuse the size of nucleus is bigger.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.