It's the study of the composition, structure, and properties of matter, the processes that matter undergoes, and the energy changes that accompany these processes.
What is chemistry?
100
The smallest unit of matter that retains the chemical properties of an element.
What is an atom?
100
Solutions that are uniform throughout (like sugar-water) are these kind of mixtures.
What are homogeneous solutions/mixtures?
100
These nonmetals, found on the far-right of the periodic table, are known for NOT reacting with other substances!
What are the noble gases?
100
It's a pure substance that is made of only one type of atom.
What is an element?
200
It's anything that has a definite composition.
What is a chemical?
200
Properties which can be observed without changing the identity of a substance.
What are physical properties?
200
If a substance can be separated by ordinary means, that means it is NOT this.
What is a pure substance?
200
They tend to be shiny, malleable and ductile, and conduct electricity well.
What are metals?
200
They are found on the pointy end of an arrow in a chemical reaction.
What are products?
300
It's the branch of chemistry that involves the identification of components and materials.
What is analytical chemistry?
300
It's a change in which one or more substances are converted into different substances.
What is a chemical change or chemical reaction?
300
They are pure substances that are made of more than one element.
What are compounds?
300
These horizontal rows on the periodic table show repeating trends in elements.
What are periods?
300
It is another word for a homogeneous mixture.
What is a solution?
400
It's the type of research that's typically used to solve a problem.
What is applied research?
400
These include phase changes, cutting, grinding, melting, but NOT burning or rusting.
What are physical changes?
400
It is a blend of two or more kinds of matter, each of which retains its own identity and properties.
What is a mixture?
400
These are poor conductors of electricity, tend to be gases at room temperature and tend to be brittle.
What are nonmetals?
400
It's a state of matter which has a definite volume but NOT a definite shape.
What is a liquid?
500
The study of non-organic substances, many of which have organic fragments bonded to metals.
What is inorganic chemistry?
500
They are the type of properties that are the same for any substance, no matter how big or small the sample.
What are intensive properties?
500
Examples of this non-uniform type of mixture might include wood, granite, and blood.
What is a heterogeneous mixture?
500
These have some characteristics of metals and some of nonmetals. They tend to be semiconductors of electricity and are found in circuitry often.
What are metalloids?
500
Extensive properties, like mass or volume, and amount of energy present, all depend on the amount of THIS present.