The Reaction Equations Flashcards
What is the equation for the reaction of a metal and oxygen?
Metal + Oxygen— Metal Oxide.
What is the equation for the reaction of a metal and water?
Metal + Water— Metal Hydroxide + Hydrogen.
What is the equation for the reaction of a metal and an acid?
Metal + Acid— Salt + Hydrogen.
What are two equations for a neutralisation reaction?
Acid + Base— Salt + Water
Acid + Alkali— Salt + Water.
What two things can oxidation mean?
Gain of oxygen and loss of electrons.
What two things can reduction mean?
Loss of oxygen and gain of electrons.
What is the equation for the reaction of an acid and a carbonate?
Acid + Carbonate— A Salt + Water + Carbon Dioxide.
What is the formula (sort of) for representing a reaction profile?
+/- x kJ/mol.
What is an endothermic reaction in terms of bonds broken, energy transfer, energy of the reaction and surrounding temperature?
These are reactions that:
- Bonds are made and so energy is taken in as it’s required
- Take in energy from the surroundings to the reacting chemicals
- Energy of the reaction goes up
- Temperature of the surroundings does down.
What is an exothermic reaction in terms of bonds broken and why, energy transfer, energy of the reaction and surrounding temperature?
These are reactions that:
- Bonds are broken and so energy is released
- Give out energy from the reacting chemicals to the surroundings
- Energy of the reaction goes down
- Temperature of the surroundings goes up.
What is the equation for the complete combustion of a fuel?
Fuel + O2— CO2 + H2O (+Energy).
What is the equation for the incomplete combustion of a fuel?
Fuel + O2— CO (carbon monoxide) + H2O (+Energy).
What is the equation for the cracking of hydrocarbons?
Large Hydrocarbon— Small Alkane + Small Alkene.
What are the two equations showing the result in colour of the reaction of a substance with bromine water and for which hydrocarbon?
What does this reaction show/identify?
Alkene + Bromine Water (Orange)— Bromine Water (Colourless)
Alkane + Bromine Water (Orange)— Bromine Water (Orange)
Used to identify the double bond in an alkene.
What is the equation for the reaction of an alkene with oxygen?
Alkene + Oxygen— Carbon + Carbon Monoxide + Carbon Dioxide + Water (+ Energy).