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26 Cards in this Set
- Front
- Back
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What is a polyatomic ion? |
A metal combined with a negative ion containing a group of atoms. |
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What is empirical formula? |
The simplest ratio of different atoms in a compound. |
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What is formula mass? |
The sum of the relative atomic masses of all the elements in a substance. |
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What is molecular formula? |
The actual ratio of different atoms in a molecule. |
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What is percentage composition?
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The amount of a given element in a substance written as a percentage of the total mass of the substance. |
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What is reacting mass? |
The mass of a substance that is needed to completely react with a given mass of another substance. |
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What is the limiting reactant? |
The reactant that was used up |
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What is the reactant in excess? |
The reactant that isn't completely |
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What is the volume of gas at RTP? |
# of moles * 24 |
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Acid + Base ——> ? |
Salt |
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Acid + Alkali ——> ? |
Salt + Water |
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What is the difference between a base and an alkali? |
An alkali dissolves in water. |
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Acid + Metal ——> ? |
Salt + Hydrogen |
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Acid + Metal Oxide ——> ? |
Salt + Water |
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Acid + Carbonate ——> ? |
Salt + Water + Carbon Dioxide. |
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What is decomposition? |
A type of reaction in which a compound is broken down into two or more substances. |
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What is a precipitate? |
A solid insoluble product of a reaction. |
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What is precipitation? |
When two aqueous solutions react to form an insoluble product. |
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What is a salt? |
A substance formed when an acid reacts with a base. |
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What is titration? |
A method of detecting when an undetectable reaction is completed. |
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What is oxidation? |
The loss of electrons and gain of oxygen. |
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What is reduction? |
The loss of oxygen and gain of electrons. |
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What is an exothermic reaction? |
A reaction that gives off heat. |
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What is an endothermic reaction? |
A reaction that takes in heat. |
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What is the activation energy? |
The energy required to start a reaction. |
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What is a catalyst? |
A substance changes the rate of reaction without getting used up. |
