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Post Test: Chemical Reactions
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Select the correct answer
Is this equation completely balanced?
2CH250, 800, 18H,0
OA. No, because the number of carbon, hydrogen & oxygen atoms on both sides of the equation are not equal.
OB. No, because the number of oxygen atoms on both sides of the equation are not equal,
OC. Yes, because all of the coefficients are in their lowest whole number ratio.
OD. No, because the number of hydrogen atoms on both sides of the equation are not equal.
OE
Yes, because the number of products is equal to the number of reactants,
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M

i just learnt this recently but i need to look through my notes again

um i think it might be a car?

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.