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التأكسد والاختزال question — Chemistry Tawjihi, with answer

احسب عدد تأكسد الكبريت في $SO_2$ و $Na_2SO_4$ و $HS^-$ .

التأكسد والاختزال

The answer

في

SO_2

: إذا كان عدد تأكسد الكبريت

x

فإن

x+2(-2)=0

، إذن

x=+4

. في

Na_2SO_4

2(+1)+x+4(-2)=0

، إذن

x=+6

. في

HS^-

(+1)+x=-1

، إذن

x=-2

Worked steps

استخدم O=-2.
استخدم Na=+1.
استخدم H=+1.
اجعل المجموع مساويا لشحنة النوع.

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التأكسد والاختزال question — Chemistry Tawjihi, with answer

احسب عدد تأكسد الكبريت في SO2SO_2SO2​ وNa2SO4Na_2SO_4Na2​SO4​ وHS−HS^-HS−.

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احسب عدد تأكسد الكبريت في $SO_2$ و $Na_2SO_4$ و $HS^-$ .