During a chemical change, substances react in characteristic ways to form new substances with different physical and chemical properties. Examples of
chemical changes include burning of wood, cooking of an egg, rusting of
iron, and souring of mik.
Examples of Chemical Changes
You may have noticed another chemical change. Over time, some pennies
change color from copper to green. This color change happens because of a
chemical change. The copper metal that makes up a penny combines with

a police officer and a ambulance

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.

може ли да зареждате повече информация, моля

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.