"<span>4 Na + O2 2 Na2O" is the one chemical equation among the following choices given in the question that </span><span>is correctly balanced. The correct option among all the options that are given in the question is the fourth option or option "4". I hope that this is the answer that has actually come to your great help.</span>
Answer:
The answer is 25.14 percent. Hope this helps.
A solid with high specific heat
The liquid being blue in colour is qualitative data because it was observed not measured
They cancel each other out so they are neutral.