Question

Cyanide poisoning can occur when compounds such as sodium cyanide dissociate in water to produce cyanide ions. what is the formula for sodium cyanide?

Answer 1

Cyanide is one of those pesky polyatomic ions that just must be memorized. Its formula is
`CN^(-)`. The formula for a sodium ion is
`Na^(+)`. These combine in equal proportions to make
`NaCN`. Its high affinity for metals make this really nasty stuff!

Answer 2

Eezy real talk ma frend!
The fromula for sodium cyanide is NaCn.