Three substances A, B, and C melt at 0° C, 50° C, and -150° C respectively, and their boiling points are 100° C, 200° C, and 10° C . State the physical nature of A, B, and C at room temperature.

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).

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