Which reactions are oxidation-reduction reactions? check all that apply.
2na+ cl2 → 2naci
pb(oh)2 → pbo + h2o
cu + 2agno3 → cu(no3 h + 2ag
znbr2 + 2agno3 → 2agbr + zn(no3)2
ch, +202 -co2 +h20

19. at high pressures, how does the volume of a real gas compare with the volume of an ideal gas under the same conditions, and why? eman- it is much less because real gas partides are not moving. there is no difference because the gas laws are always obeyed. it is much less because at high pressures the temperature drops. it is much greater because real gas partides take up space.

What shape would a molecule with two bound groups and two lone pairs have?

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.