A gaseous mixture of 7.00 g N2 and 3.21 g CH4 is placed in a 12.0L cylinder at 25 °C, (a) What is the partial pressure of each gas? (b) What is the total pressure in the cylinder? mixture of cases contains 453 mol of neon. 0.82 mol of argon and 2.25 mol of xenon.

The density would be 1.622

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.