Protons, it was once organized by atomic mass but organizing by protons turned out to be better
does it have multiple choice
1. A
2.C
3.A
4.C
5.B
I really hope this isn't cheating and that you can actually do this for yourself and you just want to double check. To study just read the Scientific Method and memorize it
Answer:
an ion
Explanation:
An ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons. This is not a particle within an atom
In a thermochemical equation, the enthalpy change is always written next to the balanced chemical equation.
For example, chemical reaction:
2Mg + O₂ → 2MgO. ΔH = -1204 kJ; this is exothermic reaction,
or chemical reaction: Fe₂O₃(s)
+ 3CO(g) → 2Fe(s) + 3CO₂<span>(g);ΔH = + 26.3 kJ, ths is endothermic reaction.</span>
<span>There are two types
of reaction: endothermic reaction (chemical reaction that absorbs more
energy than it releases) and exothermic reaction (chemical reaction that
releases more energy than it absorbs). </span>
