Types of reactions Flashcards
What effects of reactions could happen
Change in colour temperature state and smell and they might be flames, fire, gas or light
What is a compound
A chemically bonded substance that cannot be separated
What is a mixture
A non-chemically bonded substance that can be separated
Types of reactions?
Combustion neutralisation oxidation reducion displacement and thermal decomposition
What is thermal decomposition
Heat energy used to break 2 or more compounds
What is oxidation
A substance reacting with oxygen: gaining oxygen and losing electrons
What is reduction
Gaining electrons and losing oxygen
What is the Law of Conversion of Mass
No atoms lose or made during a reaction so mass of product is equal to mass of reactants
What does endothermic mean
Takes in heat eg photosynthesis
What does exothermic mean
Give out heat eg combustion
What is an element
Made of one type of atom
What is a molecule
Made of 2 or more types of atoms joined together
