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D425 Chemistry Test Questions with 100% Correct Solutions

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D425 Chemistry Test Questions with 100% Correct Solutions

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D425 Chemistry Test Questions with 100%
Correct Solutions
According to the Arrhenius concept, what does an acid do - ANSWER It increases the
concentration of H+ in an aqueous solution


What is the name for ions that do not participate in chemical reactions? - ANSWER
Spectator ions


What is the term used to describe two solvents that mix in any proportion to produce a
solution? - ANSWER Miscible


What is a formula for measuring concentration in percentage? - ANSWER Mass/total
mass x100


K>1 - ANSWER equilibrium position shifts to the right and products will predominate.


Removal of the product - ANSWER would shift the equilibrium to the right leading to
formation of more products.


K<1 - ANSWER equilibrium position shifts to the left and reactants will predominate.


According to Dalton's atomic theory, what happens to atoms in a chemical reaction? -
ANSWER They are combined.
They are separated
They are rearranged.

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