53:50 How does the number of molecules in 1 mol of oxygen compare with the number of molecules in 1 mol of nitrogen?
0 1 mol of oxygen has fewer molecules.
O 1 mol of oxygen has more molecules.
Each sample has the same number of molecules.
The molecules cannot be compared without knowing the mass.
Save and Exit
Next
Submit
Mark this and return

Time remaining 58: 10 an atom that has 84 protons and 86 neutrons undergoes a reaction. at the end of the reaction, it has 82 protons and 84 neutrons. what happened to the atom? it accepted radiation in a chemical reaction it donated neutrons to another atom in a chemical reaction it emitted an alpha particle in a nuclear reaction. it accepted protons in a nuclear reaction. mark this and retum save and exit next submit