Answer: I think it's either ice melting into water in a warm day, or a corpse preserved at zero temp
I think is 4 but Iam not sure
Answer: it is soluble
Explanation: nitrates are soluble.
Answer:
2Mg + O2 → 2MgO
Explanation:
In all conbustion you should know, that reactans are an specific compound and O2, so the products must be CO2 and H2O, or in this case, the corresponding oxide.
