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Author Archives: Anonymous

Non-metals are electron donors. 

Non-metals are electron donors. 

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What is the number of protons, electrons, and neutrons for e…

What is the number of protons, electrons, and neutrons for each of the following isotopes of carbon.  C-12 C-13 C-14

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The overall charge of the nucleus is positive. 

The overall charge of the nucleus is positive. 

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Which subatomic particle has a positive charge? 

Which subatomic particle has a positive charge? 

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Elements are arranged on the periodic table by _______. 

Elements are arranged on the periodic table by _______. 

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______ is the process by which molecules, ions, or colloidal…

______ is the process by which molecules, ions, or colloidal particles in solution move from an area of greater concentration to an area of lesser concentration until uniform concentration is acheived. 

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What are the three factors that affect chemical reactions? …

What are the three factors that affect chemical reactions?  1) catalyst 2) pressure 3) molecular weight 4) concentration 

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Which of the following forms positive ions?

Which of the following forms positive ions?

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Zn(OH)2 is an example of a(n) _______. 

Zn(OH)2 is an example of a(n) _______. 

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The two possible valences of the element Iron are

The two possible valences of the element Iron are

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