Compare and contrast the reaction between 1) halogens and alkanes and between 2) halogens and alkenes. 1) Occurs ; requires i by 2) Occurs ​

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)

Man i dont know this answer

A.(nh4)(2co3)is the correct answer