Question | Answer |
Carbon has how many amu? | 12 |
what does 1 amu equal to? | 1 g / mol |
density | mass / volume |
specific gravity | density of substance / density of water |
Does specific gravity have units? | NO |
What is characteristic of oxidizing agents? | lewis acids, permanganates, dichromate, and lots of oxygens |
What is characteristic of reducing agents? | lewis bases and lots of hydrogens |
Disproportionation reactions | single species undergo both oxidation and reduction |
For a redox titration, at equivalence potential, cell potential = | 0 |
What does an alpha particle consist of? | 2 protons and 2 neutrons |
What happens during gamma decay? | nucleus transitions from higher energy level to lower energy level and emits a gamma ray |
Difference btwn gamma ray and photon | photon is emitted when energy levels are close to each other, gamma ray emitted when energy level differences are a lot bigger |
What is a beta particle? | -electron
-positron (antimatter equivalent to an electron) |
What happens during alpha decay? | loses 4 / 2 He atom (subtract form original) |
What happens during beta - decay? | lose an electron, gain a proton, lose a neutron
--> no net change in mass number |
What happens during beta + decay? | lose a positron, lose a proton, gain a neutron
--> no net change in mass number |
What happens to neutron during beta-minus decay? | turns into a proton electron, and antineutrino
--> electron and antineutrino fly away to leave one more proton than original |
What happens to proton during beta-plus decay? | proton turns into neutron, positron, and neutrino
--> positron and neutrino fly away to leave one more neutron than before |
Does number of protons and neutrons change during beta minus/plus decay? | NO |
Do any numbers change during gamma decay? | NO |