levivader5153 levivader5153

19-12-2022
Chemistry

Answered

each student in a class placed a 2.00 g sample of a mixture of cu and al in a beaker and placed the beaker in a fume hood. the students slowly poured 15.0 ml of 15.8 m hno3(aq) into their beakers. the reaction between the copper in the mixture and the hno3(aq) is represented by the equation above. the students observed that a brown gas was released from the beakers and that the solutions turned blue, indicating the formation of cu2 (aq). the solutions were then diluted with distilled water to known volumes. question which of the following is true about the reaction?

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