Chemical Reactions Flashcards
What is a Chemical Reaction?
It is When Two or More Elements Join to make Two or More Products
What is an Atom?
The Smallest Particle of a Chemical Element That Can Exist.
What is an Element?
It is Any Material That Cannot Be Broken Down Into More Fundamental Substances.
When methane burns in oxygen, carbon dioxide and water are made. Which is a reactant?
Oxygen is a Reactant.
Copper oxide and carbon dioxide are made when copper carbonate is heated strongly. Which is a product?
Copper Oxide
What name is given to the force that holds atoms together in a compound?
Chemical Bonds
What is another name for combustion?
Burning
Combustion reactions always release energy. What word can be used to describe them?
Exothermic
Which of these is found in the fire triangle and is therefore essential for combustion?
Oxygen
What is a hydrocarbon?
A Compound Made From Carbon And Hydrogen Only
What is produced when a hydrocarbon fuel burns in a very good supply of oxygen?
Carbon dioxide and water are produced.
Which type of combustion releases the most energy?
Complete combustion
What name is given to a substance that speeds up a reaction without being used up or chemically changed?
Catalyst
