Chemistry Unit 6 Lab Report

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Pages: 1

Two experiments that used the same unknown clear liquid were videoed and shown to students.

Experiment 1:

A teacher placed one drop of the unknown clear liquid onto a piece of pH paper. The pH paper turned red and indicated a pH of 2.

Experiment 2:

A teacher placed a beaker that contained a copper penny under a fume hood, which removes gases. As the fume hood ran, the teacher placed one drop of the unknown clear liquid on the copper penny. A blue liquid and a dark red gas formed quickly.

• In the second experiment, what is the identity of the chemical property of copper?
A. It shows a reaction with acid. *
B. It shows the formation of rust.
C. It shows a reaction with oxygen.
D. It shows the formation of a base.
• If the students

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