potassium oxide (k2o) is part of the mixture of substances in modern concrete. potassium oxide is made by…

potassium oxide (k2o) is part of the mixture of substances in modern concrete. potassium oxide is made by reaction potassium and oxygen gas (o2). balance potassium - oxygen reaction shown below. k + o2 → k2o what is the coefficient on the k?

potassium oxide (k2o) is part of the mixture of substances in modern concrete. potassium oxide is made by reaction potassium and oxygen gas (o2). balance potassium - oxygen reaction shown below. k + o2 → k2o what is the coefficient on the k?

Answer

Explanation:

Step1: Balance oxygen atoms

There are 2 oxygen atoms in $O_2$ and 1 oxygen atom in $K_2O$. To balance oxygen, put a 2 in front of $K_2O$: $K + O_2\rightarrow2K_2O$.

Step2: Balance potassium atoms

Now there are 4 potassium atoms on the right - hand side. So, put a 4 in front of $K$ on the left - hand side: $4K+O_2\rightarrow2K_2O$.

Answer:

4