MTLE Earth And Space Science (Grades 9-12) Practice Questions - MTLE Earth And Space Science (Grades 9-12) Test (060 061) Exam

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A laboratory activity requires students to heat dilute hydrochloric acid to test carbonate rocks for effervescence. Which safety procedure is most essential for this activity?

Students wear chemical splash goggles and work where ventilation is adequate Students taste the acid to confirm its concentration before use Students store the acid in an open beaker on a sunny windowsill Students pipette the acid by mouth to control the volume

Correct Answer:

Students wear chemical splash goggles and work where ventilation is adequate

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