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powders

Question/termAnswer/Definition
solubility capacity to dissolve: a measure of one substance's ability to dissolve in a specific amount of another substance at standard temp. and pressure
conductivity the ability to conduct electricity: a mathematical relationship between the demintions of an object and its ability to transmit electricity
electrolyte compound seperable into ions in solution: a chemical compound that separates into ions in a solution
nonelectrolyte poor conductor of electricity: a substance that does not ionize readily in solution
element separate part or group: a seperate, indentifiable part of something, or a distict group with a larger group
covalent involving shared electrons: used to describe a chemical bond in which the attractive force between atoms is created by the sharing of electrons
compound a combination of two or more elements
ionic compound is a chemical compund in which ions are held togther in a lattice structure by ions.
exothermic giving off or incline of heat
endothermic the absorption or decline of heat.
pH the acidity or alkalinity of a substance
alkaline/base the acidity level of a substance that is higher than seven on the pH scale
acid any solution that has a pH rating of lower than seven
neutral a substance that scores a seven on the pH scale
crystal structure a structure you can see through the microscope or hand lense that are crystals.
mass a unified body of matter with no definent shape
heat of neututralization is.... when an acid and base are mixed
should you have a control of an acid and a a base together? yes
the absorption of water is... hydroscopic
if you add HCl to a substance whats precipitates might you see? mercury, lead, and silver
when you add NaOH what might precipitate? aluminum, barium, cadmium, calcium, lead, magnesium, strontium, and zinc
if you add more NaOH what precipatate will dissapear? aluminum
efflorescence proccess of a substance losing water of hydration from a hydrate
carbonates give off carbon dioxide
carbon dioxide is colorless and odorless
sulfates give off sulfur dioxide
sulfur dioxide is colorless and an odor like burning sulfur
nitrites give off nitrogen dioxide
nitrogen dioxide is reddish brown and has a distinct odor that you should not smell
materials absorbing water are hygroscopic
neutralization when you add hydrochloric acid to a substance and the temperature rises, meaning that a base is present
Miscible describes two or more liquids which will diffuse together and form a single phase. (ex. water and alcohol)
Immiscible describes two or more liquids that will not mix together. (ex. water and oil)
Polar Solvent a liquid which has polar molecules.
Non-Polar Solvent a liquid which has non-polar molecules
Carbonates ionic compounds containing the carbonate ion CO32- (ex. calcium carbonate CaCO3)
Indicator an acid/base indicator changes color, reversibly according to whether the solution is acidic or alkaline
Reactants the chemical elements or compounds that a chemical reaction starts with.
Products the chemical elements or compounds that are produced during the chemical reaction.
Saturated Solution one which will not dissolve anymore solute at a particular temperature.
Suspension the mixture of insoluble small solid particles in a gas or liquid.
Colloid a substance consisting of very small particles suspended and dipersed in a medium such as air or water.
Coagulation the process by which a colliodal particles come together to form large masses which can be percipitated out.
Created by: tbjh
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