Ionic bonding gcse i thought it was supposed to be the other way around? group 1 and 2 are harder to remove electrons since there are less shells so it’s closer to the nucleus so there’s more attraction and opposite for group 7 and 6?

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Explain what happens at the saturation point when adding salt to water at room temperature.

If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?