Sodium (Na) and iodine gas (I2) react to form sodium iodine (NaI).

Question

Which equation is a correct representation of the balanced equation?

Responses

Na→NaI+I2
upper case N lower case A rightwards arrow upper case N lower case A upper case I plus upper case I subscript 2 end subscript

NaI→2Na+I2
upper case N lower case A upper case I rightwards arrow 2 upper case N lower case A plus upper case I subscript 2 end subscript

2Na+I2→2NaI
2 upper case N lower case A plus upper case I subscript 2 end subscript rightwards arrow 2 upper case N lower case A upper case I

I2→2NaI+2Na

Answer 1

upper case I subscript 2 end subscript rightwards arrow 2 upper case N lower case A upper case I plus 2 upper case N lower case A