Reactions Flashcards
Metal Carbonate
A compound which contains metal, carbon and oxygen
Reactant
A starting substance in a chemical reaction
A substance made in a chemical reaction
Product
No atoms are lost or made in a chemical reaction, so the mass of products equals the mass of the reactants.
Conservation of mass
Word equation
A way of representing a chemical reaction simply. The reactants are on the left of an arrow, and the products are on the right. The arrow means (reacts to make.)
Endothermic reaction
An __________ reaction is one that takes in heat energy from the surroundings so the temperature of the surroundings decreases.
An __________ reaction is one that transfers heat energy to the surroundings so the temperature of the surroundings increases.
Exothermic
An energy level diagram shows whether a reaction is exothermic or endothermic. It shows the energy in the reactants and products, and the difference in energy between them.
Reaction profile
Activation energy
The minimum energy needed by particles when they collide for a reaction to occur
Combustion
Process where fuel reacts with oxygen to produce heat (burning
Some compounds break down when heated, forming two or more products from one reactant. This type of reaction is called thermal decomposition.
Thermal decomposition
