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Atoms and Bonding
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H2CO3(aq) → H2O(l) + CO2(g)
Decomposition
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Acids turn litmus paper _____.
Red
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Tetra-Phosphrous Hex-oxide
P4O6
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A single element replaces a similar element of an adjacent reactant compound.
Single-Displacement
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dinitrogen pentoxide
N2O5
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When an atom gains an electron, it becomes ___.
Negatively Charged Ions or Anions
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Alkalis have a pH _________ than __.
greater than 7
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A single reactant breaks down to form 2 or more products.
Decomposition
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What type of bond will form between Na and F?
ionic
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What does "pH" stands for?
Power of Hydrogen
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______________ are released when Acids are dissolved in water.
Hydrogen Ions (H+)
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How many electrons make an atom "stable"?
8
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When electrons are transferred between two atoms, a ___ bond is formed.
Ionic
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The electrons involved in bonding are ___ electrons.
valence
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Two or more reactants combine to make 1 new product.
Synthesis
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What is the reaction called when an acid reacts with a base?
Neutralisation
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NaCl(aq) AgNO3(aq) → NaNO3(aq) + AgCl(s)
Double-Displacement
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When an atom loses an electron, it becomes ___.
An ion or Cation
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How does a covalent bond hold two atoms together?
The nucleus of the atom is positive and the electrons of the other atom is negative, they attract to each other
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C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(g)
Combustion
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Alkalis turn litmus paper ______.
Blue
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What is the chemical name for the compound Na2S?
Sodium sulfide
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______________ are released when Bases are dissolved in water.
Hydroxide ions (OH)
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Would pH 9 be acidic, basic or neutral?
Basic
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C(s) + O2(g) → CO2(g)
Synthesis
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Acids have a pH of _____ than __.
less than 7
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