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| There are some things you eat that are not chemicals. (t/f) |
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| Modern Chemistry is based primarily on... |
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| ________ chemistry is designed to meet the needs of the present generation without compromising the needs of future generations. |
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| The results of an experiment are easiest to interpret when the experiment has _____ variables. |
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| The greek word atomos means... |
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| Leucippus and Democritus believed that... |
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| Each type of matter had a distinctive size and shape, matter was made up of atoms, substances are mixtures of different kinds of atoms |
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| What is an example reaction that is possible according to Dalton's atomic Theory? |
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| After many observations, Proust stated that elements combine in definite proportions to form compounds. Dalton explained these observations by proposing that matter must consist of atoms. Dalton's explanation is called a... |
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| What postulates Dalton's atomic theory has been modified in light of later discoveries? |
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| all atoms of an element are identical |
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| Name factors which guided Mendeleev while classifying the elements |
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| organizing by increasing atomic mass, grouping of similar elements together |
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| What is the name of the Russian chemist who was a pioneer in the development of the periodic law? |
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