A flexible balloon containing 3 L of hydrogen gas at 27 °C and 101 kPa was allowed to ascend through the atmosphere. At some height in the stratosphere when the pressure was 2.1 kPa and the temperature was 2 °C, the volume of the gas in the balloon would be A.(3×27×101)/2×2.1
B.(3×300×101)/(275×2.1)
C.(3×300×2.1)/(275×101)
D.(3×275×101)/(300×2.1)

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.