If a tire can hold 19 l of air at 175 kpa and 25° celsius, what volume of air can the tire hold at 215 kpa and 30° celsius?

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98

Suppose you discovered a new element with 120 protons and 2 electrons in its outer level . i'm what group does this new element belong? what properties would you expect it to have