Your answer would be an Element can't be separated into simpler substances or converted into another substance by chemical process.
Hope that helps!!!
Mg + 2H(NO)3 ⇒ Mg(NO3)2 + H2
Answer:It’s C on edge 2020
(Combustion of car engines producing pollutants in the air)
Explanation:
I got it right :))
The pressure of the gas is increased<span> to 224 </span><span>kPa</span>
i don't understand but atoms are made of electrons an protons and neutrons..
