109387
Description
Quiz by munchkinjofan, updated more than 1 year ago
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Created by munchkinjofan
about 11 years ago
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Question 1
Question
Define standard enthalpy change of combustion
Answer
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The enthalpy change that takes place when one mole of a substance reacts completely with oxygen under standard conditions, all reactants and products being in their standard conditions
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The enthalpy change that takes place when one mole of a compound in its standard state is formed from its constituent elements in their standard states under standard conditions
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The enthalpy change that accompanies a reaction in the molar quantities expressed in a chemical equation under standard conditions, all reactants and products being in their standard states
Question 2
Question
Define the standard enthalpy change of formation
Answer
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The enthalpy change that takes place when one mole of a substance reacts completely with oxygen under standard conditions, all reactants and products being in their standard conditions
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The enthalpy change that takes place when one mole of a compound in its standard state is formed from its constituent elements in their standard states under standard conditions
-
The enthalpy change that accompanies a reaction in the molar quantities expressed in a chemical equation under standard conditions, all reactants and products being in their standard states
Question 3
Question
Define the standard enthalpy change of reaction
Answer
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The enthalpy change that takes place when one mole of a substance reacts completely with oxygen under standard conditions, all reactants and products being in their standard conditions
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The enthalpy change that takes place when one mole of a compound in its standard state is formed from its constituent elements in their standard states under standard conditions
-
The enthalpy change that accompanies a reaction in the molar quantities expressed in a chemical equation under standard conditions, all reactants and products being in their standard states
Question 4
Question
Define "addition reaction"
Answer
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A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
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A reaction in which a more reactive element displaces a less reactive element from an aqueous solution of the latter's ions.
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The removal of a molecule from a saturated molecule to make an unsaturated molecule
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The formation of a solid from a solution during a chemical reaction. Precipitates are often formed when two aqueous solutions are mixed together
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A reaction in which an atom or group of atoms is replaced with a different atom, or group of atoms
Question 5
Question
Define "displacement reaction"
Answer
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A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
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A reaction in which a more reactive element displaces a less reactive element from an aqueous solution of the latter's ions.
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The removal of a molecule from a saturated molecule to make an unsaturated molecule
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The formation of a solid from a solution during a chemical reaction. Precipitates are often formed when two aqueous solutions are mixed together
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A reaction in which an atom or group of atoms is replaced with a different atom, or group of atoms
Question 6
Question
Define "elimination reaction"
Answer
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A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
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A reaction in which a more reactive element displaces a less reactive element from an aqueous solution of the latter's ions.
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The removal of a molecule from a saturated molecule to make an unsaturated molecule
-
The formation of a solid from a solution during a chemical reaction. Precipitates are often formed when two aqueous solutions are mixed together
-
A reaction in which an atom or group of atoms is replaced with a different atom, or group of atoms
Question 7
Question
Define "precipitation reaction"
Answer
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A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
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A reaction in which a more reactive element displaces a less reactive element from an aqueous solution of the latter's ions.
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The removal of a molecule from a saturated molecule to make an unsaturated molecule
-
The formation of a solid from a solution during a chemical reaction. Precipitates are often formed when two aqueous solutions are mixed together
-
A reaction in which an atom or group of atoms is replaced with a different atom, or group of atoms
Question 8
Question
Define "substitution reaction"
Answer
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A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
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A reaction in which a more reactive element displaces a less reactive element from an aqueous solution of the latter's ions.
-
The removal of a molecule from a saturated molecule to make an unsaturated molecule
-
The formation of a solid from a solution during a chemical reaction. Precipitates are often formed when two aqueous solutions are mixed together
-
A reaction in which an atom or group of atoms is replaced with a different atom, or group of atoms
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