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Question Marble chips (calcium carbonate) react with hydrochloric acid in an exothermic
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Chemistry, 27.05.2020 09:58 williedenmark42
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Question Marble chips (calcium carbonate) react with hydrochloric acid in an exothermic
reaction.
calcium carbonate + hydrochloric acid – calcium chloride + water + carbon dioxide
When excess marble chips are added to dilute hydrochloric acid the rate of the reaction starts
off fast, then gets slower until the reaction stops.
Why does the reaction rate get slower?
a. The concentration of the hydrochloric acid is decreasing.
b. The concentration of calcium chloride is increasing.
c. The calcium carbonate is completely used up.
d. The temperature of the mixture decreases.
Answers: 1
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In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation:
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