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Chemistry Terms 1
Chemistry Terms 2
Chemistry Terms 3
Chemistry Terms 4
Chemistry Terms 5
100
Anything that has mass and takes up space.
What is Matter?
100
An explanation or representation of something that cannot be seen.
What is a Model?
100
A collection of atoms that all have the same number of protons.
What is an Element?
100
Chemicals that result from atoms linking together.
What are molecules?
100
A change that affects the appearance but not the chemical makeup of a substance.
What is Physical Change?
200
A change that alters the makeup of the elements or molecules of a substance.
What is Chemical Change?
200
One of three forms - solid, liquid, or gas - which every substance is capable of attaining.
What is Phase?
200
The random motion of molecules form an area of high concentration to an area of low concentration.
What is Diffusion?
200
A measurement of how much solute exists within a certain volume of solvent.
What is Concentration?
200
A membrane that allows some molecules to pass through but does not allow other molecules to pass through.
What is a Semipermeable membrane?
300
A substance that alters the speed of a chemical reaction but is not used up in the process.
What is a Catalyst?
300
A molecule that contains only carbon and any of the following: hydrogen, oxygen, nitrogen, sulfur, and/or phosphorous.
What is an Organic molecule?
300
The tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration.
What is Osmosis?
300
The process by which living organisms produce large molecules from smaller ones.
What is Biosynthesis?
300
Two different molecules that have the same chemical formula.
What are Isomers?
400
Simple carbohydrates that contain 3 to 10 carbon atoms.
What are Monosaccharides?
400
Carbohydrates that are made up of two Monosaccharides.
What are Disaccharides?
400
Carbohydrates that are made up of more than two Monosaccharides.
What are Polysaccharides?
400
A chemical reaction in which molecules combine by removing water.
What is a Dehydration reaction?
400
Breaking down complex molecules by the chemical addition of water.
What is Hydrolysis?
500
Lacking any affinity to water.
What is Hydrophobic?
500
A lipid made from fatty acids that have no double bonds between carbon atoms.
What is Saturated fat?
500
A lipid made from fatty acids that have at least one double bond between carbon atoms.
What is Unsaturated fat?
500
A bond that links amino acids together in a protein.
What is a Peptide bond?
500
A strong attraction between hydrogen atoms and certain other atoms (usually oxygen or nitrogen) in specific molecules.
What is a Hydrogen bond?