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