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Chapters 3&4

Reactants Starting Materials, always found on the left side.
Products - what is created in a rxn. always on the right side.
states of matter - solid, liquid, gas, aquious.
Catalyst - allows reaction to occur, or speeds up a rxn.
inhibitor something that stops or slows down a reaction.
RxN Types Combination, Decomposition, Combustion, Metathesis, Double replacement.
Combination - adding atoms or compounds together to from 1 new big compound. A + B => AB
Decomposition - one molecule breaking down into smaller pieces, may be atoms or compounds. AB => A + B
Combustion - rxn of something with oxygen. A + O2 => AO2
Metathesis - Single replacement in a reaction. Start with an atom and an ionic compound. The atom replaces on of the coumpounds. A + BC => AC + B
Double Replacement - 2 ionic compounds switch partners. AB + CD => AC + BD
1 mole = 6.02 x 10^23
1 mole of Boron = ____g? 10.811.
If I have 4.6 moles of Boron, how man atoms of B would that be? How many grams would that be? Atoms: 4.6 moles B X [(6.02 x 10^23)/1 mole] = 2.8 x 10^24. Grams: 4.6 moles B x 10.811g = 50g B.
Percent Composition = (part/whole) x 100.
Limiting Reagent - the one that is used up first.
% yield - actual yield/theoretical yield.
dissociation - ionic compounds when dissolved in water or melted, the ions seperate to form each other, breaking apart the compound.
dispersion - covalent compounds seperate from others, but they shat whole molecules.
Electrolytes - compounds that will carry a charge when dissolved.
strong electrolytes - compounds that can carry a charge well when dissolved.
weak electrolytes - compounds that can carry a charge, just not a whole lot.
non-electrolytes - compounds that do not carry charges when dissolved in water.
Created by: Oni Oceans



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