What mass will an atom with 30 protons 30 electrons and 29 neutrons have?

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas