Two clear solutions are placed in separate beakers, the first solution has a pH of 4 and the pH of the second solution is unknown. If the two solutions are mixed and the resulting pH is 5 then the second solution must have:

a. Fewer suspended solids
b. A higher temperature
c. More dissolved NaCl particles
d. A higher concentration of OH-ions

what is the volume occupied by 40 grams of argon gas (ar) at standard conditions? what volume, in liters, is occupied by 1.5 x 1023 

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.

answer; 4 electrons;