general preamble vocab Flashcards
study of matter and energy and more importantly the changes between them
chemistry
mass reactants = mass products (the whole reason we balance stuffs)
Law of Conservation of Mass
energy can’t be created or destroyed, and can only change forms
Law of Conservation of Energy
solid to liquid
melting
liquid to gas
boiling
gas to liquid
condensing
solid to gas
sublimation
gas to solid
deposition
liquid to solid
freezing
What are the three separation techniques?
chromatography, distillation, filtration
Distillation involves…
boiling points
Filtration does what exactly?
separates solids from liquids
Protons + Neutrons tell us what about an isotope?
its mass
Protons specifically tell us what about an isotope?
the identity of the isotope (element # basically)
Electrons tell us what about an isotope?
chemical characteristics
What are the 7 diatomic elements?
Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine, and Bromine (Have No Fear Of Ice CoLd BeeR)
substances with constant composition that can be broken down into elements by chemical processes
compounds
oxidation number
pretty much just a charge lmao
gas phase of a substance that would normally be a solid or liquid at room temperature
vapor
phase that can flow, primarily gases and liquids
fluid
this can be physically separated
mixture
mixture with visibly indistinguishable parts, air for example
homogeneous (remember the air is gay)
mixture with visibly distinguishable parts, ramen for example
heterogeneous (we straight with ramen)
What defines isotopes?
atoms with the same number of protons and electrons but different number of neutrons
