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