Section 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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What does atom mean in Greek | indivisible
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The transformation of a substance or substances into one or more new substances is known as a | Chemical reaction
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The law that states that mass is neither created nor destroyed during ordinary chemical reactions or physical changes | law of conservation of mass
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The fact that a chemical compound contains the same elements in exactly the same proportions by mass regardless of the size of the sample or source of the compound is known as | the law of definite proportions
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If two or more different compounds are composed of the same two elements, then the ratio of the masses of the second element combined with a certain mass of the first element is always a ratio of small whole numbers | law of multiple proportions
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Dalton's Atomic Theory 1 -2 Says | 1. All matter is composed of extremely small particles called atoms.
2. Atoms of a given element are identical in size, mass, and other properties;atoms of different elements differ in size, mass, and other properties.
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Dalton's Atomic Theory 3 - 5 says | 3. Atoms cannot be subdivided, created, or destroyed.
4. Atoms of different elements combine in simple whole-number ratios
to form chemical compounds.
5. In chemical reactions, atoms are combined, separated, or rearranged.
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the fact that chemical reactions involve merely the combination, separation, or rearrangement of atoms and that during these processes atoms are not subdivided, created, or destroyed by what law | The Law of the conservation of mass
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An atom of carbon, C, and an atom of oxygen, O, can combine chemically to form | a molecule of carbon monoxide (CO)
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the law of multiple proportions, in the case of the carbon oxides, the 2-to-1 ratio of oxygen masses results because | Carbon dioxide always contains twice as many atoms of oxygen per atom of carbon as does carbon monoxide
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All matter is composed of | atoms
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atoms of any one element differ in properties from | atoms of another element which remains unchanged
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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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