chemistry midterm
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 | cience thats deals with the matter of the universe and the changes they under go
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| theory | explaination that has stood up to much testing and observation
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| natural law | summary of observation
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| scientific method | process used to make and explain discoveries to solve problems
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| matter | has mass and occupies space
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| compound | atoms of different elements chemically combined
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| element | cannot be separated into similar substances
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| solid | has a fixed shape and volume
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| liquid | has a fixed volume but assumes shape of its container
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| gas | no fixed volume or shape
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| physical properties | inherent characteristics of a substance
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| chemical properties | ability to form new substances
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| physical change | composition of a substince is not affected
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| chemical change | a new substance is formed
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| physical properties | density/harness, color/odor, melting/boiling pint
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| nucleus | dense, positively charged center of an atom; proton and neutron
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| mass number | sum of the protons and the number of neutrons in the nucleus of an atom
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| electron | negetivley charged subatomic particle
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| isotopes | atom with same number of protons but different number of neutrons
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| ion | atom with a charge
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| polyatomic ions | ions containg several atoms
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| binary ionic compounds | metal and nonmetal bonded together
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| D=m/v | formula for density
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| average atomic mass | weighted aaverage of all of the isotopes of an element
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| mole | 6.022x 10^23 atoms
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| chemical reaction | process in which a new substance is formed
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| reactant | substance that enters into a chemical reaction
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| product | written on the right side of the arrow in a chemical equation
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| coefficient | numbers used to balancce chemical equations
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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:
emilyarena
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