Thymolphthalien
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10 terms
Terms | Definitions |
|---|---|
 hypothesize | To make a guess you can test. |
| control | a standard against which other conditions can be compared in a scientific experiment |
| acid | compound that donates H+ ions to an aqueous solution and measures less than 7 on the pH scale |
| base | compound that produces hydroxide ions (OH+) in solution and measures more than 7 on the pH scale |
| pH | a value that indicated the acidity or alkalinity of a solution on a scale of 0-14, based on the proportion of H+ ions. |
| indicators | compounds that react with acidic and basic solutions and produce certain colors, depending on the solution pH |
| ammonia | A small, very toxic molecule made up of three hydrogen atoms and one nitrogen atom; produced by nitrogen fixation and as a metabolic waste product of protein and nucleic acid metabolism. |
| carbonation | saturation with carbon dioxide (as soda water) |
| reversible reaction | A chemical reaction in which the products re-form the original reactants |
| evaporation | the process by which water changes from liquid form to an atmospheric gas |
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