The diagram above shows light as it travels through matter. If the density of the matter is greater than the density of the surrounding air, the speed of light will _.
a. decrease through the matter
b. remain constant through the matter
c. increase then decrease through the matter
d. increase through the matter

gas

explanation:

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the correct answer would be d. hope this !

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.