munchkinjofan
Quiz von , erstellt am more than 1 year ago

A-Levels chemistry Quiz am Definitions, erstellt von munchkinjofan am 26/05/2013.

109
1
0
munchkinjofan
Erstellt von munchkinjofan vor etwa 11 Jahre
Schließen

Definitions

Frage 1 von 8

1

Define standard enthalpy change of combustion

Wähle eine der folgenden:

  • 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

Erklärung

Frage 2 von 8

1

Define the standard enthalpy change of formation

Wähle eine der folgenden:

  • 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

Erklärung

Frage 3 von 8

1

Define the standard enthalpy change of reaction

Wähle eine der folgenden:

  • 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

Erklärung

Frage 4 von 8

1

Define "addition reaction"

Wähle eine der folgenden:

  • 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

Erklärung

Frage 5 von 8

1

Define "displacement reaction"

Wähle eine der folgenden:

  • 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

Erklärung

Frage 6 von 8

1

Define "elimination reaction"

Wähle eine der folgenden:

  • 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

Erklärung

Frage 7 von 8

1

Define "precipitation reaction"

Wähle eine der folgenden:

  • 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

Erklärung

Frage 8 von 8

1

Define "substitution reaction"

Wähle eine der folgenden:

  • 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

Erklärung