Definitions

Descripción

A-Levels chemistry Test sobre Definitions, creado por munchkinjofan el 26/05/2013.
munchkinjofan
Test por munchkinjofan, actualizado hace más de 1 año
munchkinjofan
Creado por munchkinjofan hace alrededor de 11 años
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Resumen del Recurso

Pregunta 1

Pregunta
Define standard enthalpy change of combustion
Respuesta
  • 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
  • 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

Pregunta 2

Pregunta
Define the standard enthalpy change of formation
Respuesta
  • 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
  • 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

Pregunta 3

Pregunta
Define the standard enthalpy change of reaction
Respuesta
  • 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
  • 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

Pregunta 4

Pregunta
Define "addition reaction"
Respuesta
  • A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
  • 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

Pregunta 5

Pregunta
Define "displacement reaction"
Respuesta
  • A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
  • 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

Pregunta 6

Pregunta
Define "elimination reaction"
Respuesta
  • A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
  • 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

Pregunta 7

Pregunta
Define "precipitation reaction"
Respuesta
  • A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
  • 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

Pregunta 8

Pregunta
Define "substitution reaction"
Respuesta
  • A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
  • 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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