Properties & Matter
This type of property can be observed without changing a substance
physical property
The starting substances in a chemical reaction
reactants
Energy of motion
Kinetic Energy
Heat always flows in this direction
Warm to cool
A substance used to make objects
Material
This property describes how a substance reacts to form a new substance
chemical property
The substances formed after a chemical reaction
products
Thermal energy transferred from a warmer object to a cooler object
heat
Transfer of heat through direct contact
Conduction
Human-made material created through chemical processes
Synthetic Material
Mass per unit volume is known as this
density
The small number in a chemical formula that shows number of atoms
Subscript
Energy stored in chemical bonds
Chemical energy
Transfer of heat through movement of fluids (liquid and gases)
Convection
Change in position over time
motion
The ability of a substance to dissolve in another substance
Sollubility
What is the Law of Conservation of Matter?
The law stating matter cannot be created or destroyed
Stored Energy
potential energy
A process that absorbs energy
Endothermic
Push or Pull
Force
This proves a chemical reaction occurred because a new substance forms
Why must chemical equations be balanced?
because atoms must be equal on both sides
In a system, these are what enter and leave
inputs and outputs
A process that gives off energy
exothermic
If forces are equal and opposite, the net force is this
0 N