C3H2(g) + 5 O2(g) 3 CO2(g) +4 H2O(g) If 0.678 g of propane (C3Hg) are used in the reaction, how many liters of oxygen gas are required to react completely at STP?
Molar mass of C3Hg = 44.11 g/

The answer is a) carbon-12

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic