What are the 3 ways that heat can transfer?

Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation).

Explanation:

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).