CHE-125 Ch. 1
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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| Matter | anything that has mass and occupies space
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| Scientific Method | the systematic process of observation, hypothesis, and expierimentation used to expand and refine a body of knowledge.
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| Solid | a substance with definte shape and volume
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| Liquid | substance with definte volume but indefinte shape(assumes shape of its container)
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| Gas | substance with niether definte volume or shape
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| States of Matter | the physical state of a substance (solid/liquid/gas)
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| Change of State | conversion of a substance from one state to another
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| Pure Substance | uniform chemical composition throughout
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| Mixture | a blend of two or more substances, each of which retains its chemcial idenity.
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| Element | fundamental substance which that connot be broken down chemically into any simpler substance
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| Chemical Compound | a pure substance that can be broken down into simpler substances by chemical reactiosn
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| Reactants | A starting substance that undergoes a change during a chemical reaction
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| Product | the substance formed as a reslt of a chemical reaction
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| Chemical Reaction | A process in which the idenity and compisition of one or more substances are changed
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| Chemcial Formula | A notation for a chemical compound using element symbols and subscripts to show how many atoms of each element are present
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| Metal | A malleable element with a lustrous appearence that is a good conductor of heat and electricity. Solid @ room temp., Ductile.
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| The only metallic element that is liquid at room temp is? | Mercury (Hg)
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| How many elements are on the periodic table? | 117
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| Amount of elements that occur naturally? | 90
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| Exanmples of Physical Change? | Phase changes, dissolving sugar in water, breaing glass, nickel sticking to magnet.
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| Examples of Chemical Change? | Milk Souring, Rusting, burning, exploding of nitroglycerin, ignition of matches.
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| Examples of Mixtures? | Seawater, Mayonnaise, Rocks, Blood, Toothpaste, fog
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| Examples of Compounds? | Water, Sugar, Sodium Chloride, Gaseous Ammonia, steam+water, Sodium Bicarbonate (Baking Soda)
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| Non-metals | Many are exotic colored. Bad conducters. 11 are gases @ room temp, 5 are brittle solids, and Bromine is the only liquid nonmetal.
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| Metalloids | Located along staircase (except Alumminum Al & Polonium Po). Solids, Dull, semi conductors.
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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:
kaelin.steele
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