Hypothesis 2 (Particle size): If you the particle size of a reactant then the reaction rate
will increase because
of the reactant's surface area is exposed allowing more particles to make
contact with each other

a chemical reaction happens

explanation:

the atomic mass is the bottom number on the element.

-steel jelly

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.