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3U Chemistry
Chemical Reactions
| Question | Answer |
|---|---|
| Precipitate | an ionic solid that forms by the reaction between an aqueous cation and aqueous anion |
| Conservation of Mass | explains why we balance equations: there should be the same number of atoms of each type of element on both sides of the equation |
| coefficient | the number in front of a formula that shows the # of particles of that substance involved in the reaction |
| subscript | the number or symbol placed below and to the right of an element or compound |
| synthesis reaction | a nonmetal oxide reacts with water to form an acid |
| decomposition reaction | metal hydroxides form metal oxides and water |
| AB --> A + B | metal carbonates form metal oxides and carbon dioxide when heated |
| combustion reaction | always involves oxygen as a reactant and produces heat/light |
| complete and incomplete combustion | always produces carbon dioxide and water |
| incomplete combustion | produces carbon dioxide and water AND soot and/or carbon monoxide |
| single displacement reaction | requires you to rank the reactivity of metals or halogens in aqueous reactions |
| double displacement reaction | Acid + carbonate-containing compound produces an ionic compound, water + CO2 |
| double displacement reaction | requires you to consult a solubility table to determine whether a precipitate was formed |
| double displacement reaction | Sodium hydroxide + ammonium chloride produces sodium chloride + ammonium hydroxide (which further decomposes into water + ammonia gas) |
| neutralization reaction | an acid and base combine to form a salt and water |
| dissociation | what happens to an ionic solid when it dissolves in water...it separates into its component ions |
| dissolving | is a physical change |
| Corrosives | can damage or even destroy metal. They begin to cause damage as soon as they touch the skin, eyes, respiratory tract, digestive tract, or the metal. |
| low solubility | the substance will not dissolve in water and will remain a solid |
| account for... | create a reason or explanation for... |
| demonstrate | Show proof or evidence for something. Explain or show how something works. |
| Carbonic acid | decomposes into water and carbon dioxide |
| Ammonium hydroxide | decomposes into water and ammonia gas |
| nonmetal oxides plus water form | acid rain! |
Created by:
jcepella
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