Question

Potassium and oxygen will combine to make a compound. K_O_ Fill in the blanks with the number of the subscript.

Answer 1

did you get the answer? there was two boxes what do i put?

Answer 2

First and foremost, we need to write at the word equation:

Potassium + Oxygen ------> Potassium Oxide

At this instant, we can write the symbol equation:

K(s) + O2(g) ------> K2O(s)

Then, balancing the equation we get

2K(s) + 0.5O2(g) -------> K2O(s)

ANSWER: K2O (Potassium Oxide)