chemistry

• A exothermic reaction releases heat energy to the surroundings
• An endothermic reaction absorbs heat energy from the surroundings.
• The reactants are substances that take part in a chemical reaction
• what are the examples of an exothermic reaction?

  Combustion, reactions between alkali metals and water, aerobic respiration and neutralisation.
• What is the product of a metal and oxygen?

  metal oxide
• What is the product of a metal and water?

  metal hydroxide and hydrogen
• What is the product of a metal and acid?

  Metal salt + hydrogen
• What is the product of a metal carbonate + acid?

  Metal salt + carbon dioxide + water
• What is the process of neutralization?

  The process of neutralization involves the reaction between an acid and a base solution to form a salt and water.
• What is the definition of combustion?

  Combustion is a chemical reaction that occurs when a fuel combines with oxygen to produce heat or an explosion.