Chem
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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| Biomagnification | increase in concentration of harmful substance at each link in the food chain as one animal eats many contaminated animals
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| Bioaccumulation | gradual build up of chemicals in an organisms body
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| 3 States of Matter | Solid, Liquid, and Gas
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| Difference between Physical and Chemical properties of Matter | Physical properties are properties that do not change the nature of matter.Chemical properties are properties that do change the nature of matter.Physical changes are reversible.
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| Define Malleability | It is the ability of a solid to bend or be hammered into other shapes without breaking
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| Define Ductility | Capable of being drawn out into wire or threads, as gold.
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| Define Lustre | eflected light; sheen; gloss
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| Define Combustibility | Capable of catching fire and burning; inflammable; flammable:
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| Difference between element and compound | An element is a single substance. A compound consists of two or more of these elements.
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| Atom |
the smallest component of an element
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| Molecules | . the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.
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| Element | A chemical element is a substance that cannot be broken down by chemical means.
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| Alkali metals | The alkali metals, found in group 1 of the periodic table , are very reactive metals that do not occur freely in nature
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| Alkaline Earth Metals | any of the divalent strongly basic metals of group II of the periodic table
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| Halogens | group 17
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| Noble Gases | group 18
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| Isotope | any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons
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