1. What is the scientific name for gas?

Well it depends what kind of gas, but Methane (or natural gas) is called just Mathane gas. Laughing gas is called Nitrous oxide. Some names of gases include hydrogen, helium, oxygen, argon, krypton, neon, nitrogen, fluorine, chlorine, xenon and radon. Gases that are compounds include carbon dioxide, carbon monoxide, methane, nitrous oxide, ozone and hydrogen sulfide. Other types of gases include vapor and steam.

Hope that helps?

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).