Matter
What are the two properties of matter
Physical and chemical
what are some common units of volume
Liter, milliliter, cubic centimeters
What is the difference between endothermic and exothermic change
An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.”
What is the KMT
explains the states of matter, and is based on the idea that matter is composed of tiny particles that are always in motion.
What is the simplest form of matter
Elements
What is the formula for mass
Density x volume
What is the law of conservation of mass
chemical reaction mass is neither created nor destroyed
What are the three points in the KT
-All matter are made up of tiny particles that are in constant motion and bumb into each other
-the speed of the particles (measured by kinetic energy) depends on their temperature
-the total amount of kinetic energy of the particles that collide remain constant. The total amount of energy does not change
What happened when elements are chemically combined
They form compounds
What is the formula for volume
Length x width x height
What does every chemical and physical change do in matter
It includes a change in energy
what happends during a chemical change
Chemical energy may change to other forms of energy
What does each substance in a mixture do
Keeps its individual properties
How is mass different from weight
mass doesn’t change with location
why is a chemical change different from a physical change
A chemical change is a substance undergoing change (usually with chemicals) that makes a new substance
A physical change is a change that only changes it’s form on the outside
What are all 6 forms of energy
Kinetic, potential, chemical, electromagnetic, electrical, electrode,
What are the differences between heterogeneous and homogeneous
Heterogeneous is a mixture that is not evenly mixed
Homogeneous is a mixture that is uniformed distribution
What is the formula for density
Mass % volume
What happened to a substance that undergoes a physical change
It is still the same substance after the change
What are the forms of of energy relating to change in matter
Kinetic and potential energy