Answer:
Valency is the measure of the combining power of an element
Answer:
5, 3 ,2 ,4, 1 ( Pictures in order )
It is Magnesium. Because
2Mg+O2=2MgO
2 moles of magnesium are required for 1 mol of O2.
We have 5 moles of O2.
Thus,we would soon run out of Mg
Answer:
The pH scale is used to express the concentrations of hydronium ions and potassium ions in solutions.
Explanation:
Increasing the reprocessing of used fuel for reuse