Properties & reactions
Characteristics of a substance that can be observed without changing the substance into another
What is a Physical Property?
A short easy way to show a chemical reaction using symbols
What is a chemical equation?
The study of matter and how matter changes
What is chemistry?
A material that releases energy when it burns
What is fuel?
The new substance produced after a chemical reaction
What is a product?
Characteristics of a substance that describes its ability to change into other substances
What is a chemical Property?
A number placed in front of a chemical formula in an equation.
What is a Coefficient?
A change in matter that produces one or more new substances
What is a chemical change?
Three things to start and maintain a fire
What is fuel, heat and Oxygen
Where matter can enter from or escape to the surroundings in a chemical reaction
What is an open system?
A reaction in which energy is absorbed
What is an endothermic reaction ?
A material that increases the rate of a reaction by lowering the energy level
What is a catalyst?
The principle that states matter is not created or destroyed in a chemical reaction
What is conservation of mass?
A material used to decrease the rate of a chemical reaction
What is an inhibitor?
Where matter is not allowed to enter or leave a chemical reaction
What is a closed system?
A reaction that releases energy in the form of heat
What is an exothermic reaction?
A material used to decrease the rate of a chemical reaction
What is an inhibitor?
The amount of a substance in a given volume
What is concentration?
Anything that has mass and takes up space
What is matter?
When one element replaces another in a compound or 2 elements in different compounds trade places
What is a Replacement?
The minimum amount of energy needed to start a chemical reaction
What is activation energy?
is a special type of protein (or sometimes RNA) that acts as a biological catalyst to speed up chemical reactions in living things
What is an enzyme?
A rapid reaction between oxygen and a substance called fuel
What is combustion?
A solid that forms from a solution during a chemical reaction
What is a Precipitate?
When a reaction breaks down complex substances into simpler products
What is a decomposition?