Midterm: Monday 1/16
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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| chemistry definition | the study of matter
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| matter definition | anything that has mass and occupies space
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| mass definition | quantity of matter
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| What are atoms known as? | quantity of matter
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| atom definition | the simplest particle of a substance that contains all properties of that surface.
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| protons | positive charge found in the nucleus
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| neutrons | no charge found in the nucleus
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| electrons | negative charge that surrounds the nucleus
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| elements definition | substances composed of 1 type of atom that is "pure"
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| isotopes definition | atoms of an element with a different number of neutrons. Most are radioactive.
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| compounds definition | composed of two or more elements in a fixed ratio, and are formed through chemical bonds.
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| Covalent Bond qualities | share electrons, form molecules
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| Ionic Bond qualities | transfers electrons and involves ions
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| energy definition | the ability to do work
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| solid definition | low energy where particles are tightly packed. It has a definite volume and definite shape.
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| liquid definition | medium energy where particles are close together, but can move. It has definite volume but no definite shape.
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| gas definition | high energy where particles move freely. There is no definite volume and no definite shape.
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| chemical reaction definition | one or more substances changed to produce one or more different substances. Usually expressed as a formula.
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| reactants | the pure element before the final product
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| products | the elements formed together in a new substance
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| exothermic | a chemical reaction where energy is released
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| endothermic | a chemical reaction where energy is absorbed
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| activation energy definition | energy required to start a chemical reaction
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| catalyst definition | any substance that can increase the rate of a chemical reaction, it lowers the amount of activation energy needed
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| Oxidation- Reduction Reaction (Redox) | a gain and loss of electrons between reactants to form products
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| polar molecule definition | even though water is covalently bonded, there is an uneven distribution of electrons... causing the molecule to have a slight charge.
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| hydrogen bonding definition | the force of attraction between the hydrogen side (+) of water with a substance with a negative charge.
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| cohesion definition | water will bond with other water molecules; creates surface tension; water is constantly breaking and reforming bonds
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| adhesion definition | water will bond to other substances; makes water extremely sticky
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| capillary action | the attraction of water to surfaces that will cause water to rise
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| high specific heat | water has the ability to absorb large quantities of heat
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| specific heat | the amount of energy required to change the temperature of a substance
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| Temperature Moderation | water does not heat up or cool down rapidly
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| Density as a solid | water is less dense in its solid state than in its liquid
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| solvent | does the dissolving
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| solute | gets dissolved
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| saturated | all molecules of a solvent are bonded with a solute "covered"
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| unsaturated | more solvent than solute (watery)
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| super-saturated | more solvent than solute (
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
chathamccloskey
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