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Chemistry Exam 2
Chapter 4
| Question | Answer |
|---|---|
| Chemical Reactions | occur when bond reactants broken and form products |
| Aqueous | Disolved in water |
| how to balance equations | same number of each element on both sides |
| Mole Ratios | ratios found within a chemical compound |
| Solution | Homogenous Mixture |
| Solute | Whats being dissolved |
| Solvent | whats doing the dissolving |
| saturated | max amount of solute that can be dissolved at certain temp |
| unsaturated | anything less than the max dissolved |
| Super Saturated | more of the solute than can be dissolved making it unstable |
| Non-Electrolyte | will not conduct electricity (Molecular), dont ionize |
| Electrolyte | Weak and Strong ones that are aqueous (Ionic) |
| Components of a Precipitation Reaction | 2 ionic compounds that double switch |
| Solubility | Max amount of solute that willl disolve in a given quantity of solvent at a specific temperature |
| Double replacement | AB+CD=AD+CB |
| Acid | Anything that produces H+ in water |
| Base | Anything that produces OH- in water |
| Strong acids and bases | nearly 100% ionized in water |
| What are the products of Acid/Base reaction | salt, water and sometimes carbon dioxide |
| Oxidation Numbers | charge atom would have if electrons were completely transferred |
| Oxidation number of uncombined elements | Zero |
| 3 things that happen in Oxidation/Reducing Agent | Loss of e-, increase oxidation number, increase in oxygen |
| 3 things that happen in Reduction/oxidizing agent | Gain of e-, decrease oxidation number, decrease in oxygen |
| Reduction cant happen without | Oxidation to provide e- |
| Oxidation is | Loss of electrons (Oil) |
| Reduction is | gain of electrons (Rig) |
| Synthesis Reaction (combination) | A+B=AB |
| Combustion Reaction | compound reacts with O2 to form CO2 and H2O |
| Precipitation Reaction | takes place in solution, reactants soluble, 1 nonsoluble product |
| Decomposition Reaction | AB=A+B |
| Oxidation and Reduction refers to | Reactants only |
| What makes it an acidic solution | Oxygen |
| Grams to grams | 4 parts |
| moles to moles | 2 parts |
| Volume to Volume | 4 parts |
| Percent Yield Formula | Actual( experiment)/Theoretical (Calculated) |
| Theoretical Yield | Calculated |
| Actual Yield | Experimental |
| Theoretical Quantity has to be | greater than actual |
| What are major products | products that dont spectate |
| What is HCl2 | Weak Acid |
| What is a combustion reaction | high temp exothermic redox reaction |
| Equivalence Point | equal moles of Acid and Base |
| Titration formula (1:1 ratio) | MV=MV |
Created by:
brkolstoe
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