Answers26-27 CFISD TX-Chemistry A CRProperties of Acids and BasesQuestion 7
7
AssignmentMultiple Choice

Properties of Acids and Bases

Question 7 • *26-27 CFISD TX-Chemistry A CR

Which is the best reason that a geologist might carry a small dropper bottle filled with hydrochloric acid when doing fieldwork?to wash rock samples to make them easier to studyto wear away large areas of rock to see what is underneathto test for the presence of carbonate minerals in a rockto use as an emergency eyewash in case rock dust gets in the eyes

Answer
A
to wash rock samples to make them easier to study
B
to wear away large areas of rock to see what is underneath
C
to test for the presence of carbonate minerals in a rock
D
to use as an emergency eyewash in case rock dust gets in the eyes

Explanation

Geologists use a small drop of hydrochloric acid to test rocks for carbonate minerals, such as calcite. Carbonate minerals react with the acid, often producing visible fizzing or bubbles. The acid is not used to wash samples, remove large areas of rock, or clean eyes.

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