At standard pressure, a sample of oxygen occupies 31 ml. What volume does the gas occupy when the pressure is 2 atm?

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?

The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table.state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?