Posted by John on .
write the formulas for the following
potassium sulfide i put KaS
Tin (IV) chloride i put SnCl4
Dihydrogen sulfide i put H2S
Calcium Oxide i put CaO
Hydrobromic acid i put HBr
Aluminum Fluoride i put AlF3
dinotrogen pentoxide i put N2O5
Iron (III) carbonate i put Fe2(CO3)3

more chemistry help and proofread 
DrBob222,
potassium sulfide i put KaS K is potassium and it is +1 while sulfide is 2; therefore, the formula is K2S.
Tin (IV) chloride i put SnCl4 OK
Dihydrogen sulfide i put H2SOK
Calcium Oxide i put CaOOK
Hydrobromic acid i put HBr OK
Aluminum Fluoride i put AlF3 OK
dinotrogen pentoxide i put N2O5OK
Iron (III) carbonate i put Fe2(CO3)3 OK