Chapter 2- Introduction to Matter Flashcards
Anything that has mass and takes up space.
Matter
The study of the properties of matter and how matter changes.
Chemistry
A single kind of matter that is pure, meaning it always has a specific makeup- or composition- and a specific set of properties.
Substance
A characteristic of a pure substance that can be observed without changing it into another substance.
Physical Property
A characteristic of a pure substance that describes its ability to change into different substances.
Chemical Property
A pure substance that cannot be broken down into any other substances by chemical or physical means.
Element
The basic particle from which all elements are made.
Atom
A force of attraction between 2 atoms.
Chemical Bond
Atoms combine to form larger particles.
Molecules
A pure substance made of two or more elements chemically combined in a set ratio.
Compound
Shows the elements in the compound and the ratio or atoms.
Chemical Formula
Made of two or more substances- elements, compounds, or both- that are together in the same place but are not chemically combined.
Mixture
You can see the different parts.
Heterogeneous Mixture
So evenly mixed that you can’t see the different parts.
Homogeneous Mixture
Well-mixed mixture containing a solvent and at least 1 solute that has the same properties throughout.
Solution
A measure of the force of gravity on you.
Weight
The measurement of the amount of matter in the object.
Mass
Measure the properties of matter.
International System of Units
The amount of space that matter occupies.
Volume
Relates the mass of a material in a given volume.
Density
Any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance.
Physical Change
Change in matter that produces one or more new substances.
Chemical Change
The fact that matter is not created or destroyed in any chemical or physical change.
Law of Conservation of Mass
The ability to do work or cause change.
Energy
Measure of the average energy of random motion of particle of matter.
Temperature
Total energy of all of the particles in an object.
Thermal Energy
A change in which energy is taken in.
Endothermic Change
Releases energy.
Exothermic Change
Energy of motion in matter.
Kinetic Energy
Energy an object has because of its position.
Potential Energy
Internal energy stored in the chemical bonds between atoms is a form of potential energy.
Chemical Energy
A form of energy that travels through space as waves.
Electromagnetic Energy
Energy of electrically charged particles moving rom one place to another.
Electrical Energy
Two metal strips that are placed in a solution but don’t touch.
Electrades
