a. an abstract model b. a concrete
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Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.
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Fossil fuels are organic compounds that are made from
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A model of an axiomatic system that
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a. an abstract model b. a concrete
a. an abstract model b. a concrete
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