Chemistry(DB)
Acid~a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind.
Base~a substance capable of reacting with an acid to form a salt and water
click to edit
Mass~the quantity of matter which a body contains
Matter~physical substance in general, as distinct from mind and spirit
Physical Change~ changes affecting the form of a chemical substance, but not its chemical composition.
Chemical Change~ occur when a substance combines with another to form a new substance
Chemical Property~any of a material's properties that becomes evident during, or after, a chemical reaction;
Chemical Reactivity~ the tendency of a substance to undergo chemical changes in a system.
Physical Property~any property that is measurable, whose value describes a state of a physical system.
Chromatography~the separation of a mixture by passing it in solution or suspension or as a vapor
Boiling Point~the temperature at which a liquid boils and turns to vapor.
Freezing Point~the temperature at which a liquid turns into a solid when cooled.
Melting Point~the temperature at which a given solid will melt.
Evaporation~the process of turning from liquid into vapor.
Distillation~the action of purifying a liquid by a process of heating and cooling.
Filtration~the action or process of filtering something.
Kinetic Molecular Theory~states that gas particles are in constant motion and exhibit perfectly elastic collisions.
Liquid~a substance that flows freely but is of constant volume, having a consistency like that of water or oil.
Gas~a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape
Solid~firm and stable in shape; not liquid or fluid.
Mixture~a substance made by mixing other substances together.
Atom~the basic unit of a chemical element.
Pure Substance~a sample of matter with both definite and constant composition and distinct chemical properties
Element~each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter.
Ion~an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
Molecule~a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
Ion Charge~a charged atom or molecule
Monatomic Ion~an ion consisting of exactly one atom
Compound~a thing that is composed of two or more separate elements; a mixture.
Metal~a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
Non-metal~an element or substance that is not a metal.
