General Chemistry Questions & Answers

General Chemistry Questions & Answers 1000L in m^3 - CORRECT ANSWER - 1000L = 1m^3 1L in cm^3 - CORRECT ANSWER - 1L = 1000cm^3 1mL in cm^3 - CORRECT ANSWER - 1mL = 1cm^3 Acidity - CORRECT ANSWER - - Measure of how well a compound donates protons. Bottom Right are most acidic. Adding Electrons to orbitals & Removing them - CORRECT ANSWER - Fill 4s, then 3d, then 4p Remove 4p, then 4s, then 3d Afbau principle - CORRECT ANSWER - Electrons occupy lowest energy orbitals available Alpha Decay - CORRECT ANSWER - Large nucleus emits an alpha particle. Consists of 2 protons & 2 neutrons. Loss of 4 to the mass number, loss of 2 to the atomic number. Not dangerous. Can be stopped by thin layers. Angstrom - CORRECT ANSWER - unit of length used to measure atomic radii and bond lengths. Usually around 1-3A At 0C, 1 atm, 1 mol gas fills... - CORRECT ANSWER - 22.4 L at a constant moles, Ideal Gas Law - CORRECT ANSWER - (P1V1/T1) = (P2V2/T2) Atomic & Ionic Radius Periodic Trends - CORRECT ANSWER - Bottom Right has highest atomic radius. - As you go across, no extra shells but extra protons so radius decreases. - As you go down, more shells, so radius increases Atomic Symbol - CORRECT ANSWER - atomic weight - CORRECT ANSWER - weighted average of a mass numbers from all the different isotopes Avagadro's number - CORRECT ANSWER - 6 * 10^23 B- decay - CORRECT ANSWER - When too many neutrons, 1 neutron - proton + Beta particle.