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| A substance made of the joined atoms of two or more different elements? |
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| substance that cannot be broken down? |
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| Atom or molecule that has lost or gained one or more electrons? |
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| simplest particle of an element? |
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| One substance evenly distributed in another? |
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| Chemical bond in which electrons are shared? |
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| Attraction between oppositely charged ions? |
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| What are atoms of the same element that have different numbers of neutrons. |
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| All the chemical reactions that take place in an organism are what? |
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| The three-dimensional region around a nucleus that indicates the probable location of an electron is the electron's? |
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| The ----------- ------------ of fluorine is 19. |
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| What is an element is equal to the total number of its protons and neutrons. |
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| What is one in which no no more solute can dissolve? |
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| This is the attraction between molecules of a liquid that causes its surface to rise when in contact with a solid? |
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Classify the following as being either a chemical (C) or physical (P) change?
A. Sodium Chloride dissolves in water
B. Food is digested
C. Iron rusts
D. A person gets cooler by perspiring
E. A red blood cell placed in distilled water will swell and burst
F. A match burns
G. The roots of plants absorb water
H. Proteins are made from amino acids |
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Definition
A. P
B. C
C. C
D. P
E. P
F. C
G. P
H. C |
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Term
Balance the following equations?
A. Na + I2 ----> NaI
B. S + O2 ----> SO3
C. Na + H2O ----> NaOH + H2
D. H2O ----> H2 + O2
E. KCIO3 ----> KCI + O2
F. CO2 + H2O ----> H2CO3
G. KOH + H2SO4 ----> K2SO4 + H2O |
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Definition
A. 2Na + I ----> 2NaI
B. 2S + 3O2 ----> 2SO3
C. 2Na + 2H2O ----> 2NaOH + H2
D. 2H2O ----> 2H2 + 2O2
E. 2KCIO3 ----> 2KCI + 3O2
F. CO2 + H2O ----> H2CO3
G. 2KOH + H2SO4 ----> K2SO4 + 2H2O
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