Yep! I typed your equation into this website"http://www.endmemo.com/chem/balancer.php" and it said it was balanced
The group VIA elements are called chalcogens because most ores of copper (Greek chalkos) are oxides or sulfides, and such ores contain traces of selenium and tellurium.
4 protons the number of proton has the same number of electron [which is the same as atomic number]
Answer:
20 mole of oxygen
Explanation:
1 mole of proprane reacts with 5 moles of oxygen so 4 time 5 equals 20