Introduction to Chemistry - The Basics
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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| what is chemistry? | study of what things are made of and how matter behaves/reacts under various conditions
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| why should you study chemistry? | it helps explain the world we live in by describing the changes that matter undergoes as a result of chemicals reacting, how we convert energy, what fuels the sun, why oranges are sour, etc.
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| why is chemistry important to other sciences? | it is used in medicine, agriculture, public service, and teaching
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| what careers are open to chemists? | governmental agencies, businesspeople, consultants for law firms
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| describe linus pauling's accomplishments. | he is the only person to receive 2 unshared Nobel prizes. 1954: chemistry. 1962: peace. 1st person to determine nature of chemical bond. biochemistry. helped determine the structure of a protein, nature of DNA, and role of vitamin C in human health
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| structure of an atom | nucleus (core) contains + protons and ~neutrons, and is surrounded by - electron cloud, which constantly moves in orbit of nucleus
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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.
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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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