객관식
Which of the following should be the first thing you do upon entering a chemistry laboratory?
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4. BONUS: Lab Techniques and Procedures
Laboratory Materials
Multiple Choice
When polycarboxylate cement is mixed correctly in the laboratory, what should its appearance be?
A
Sticky and stringy
B
Grainy and dry
C
Powdery and opaque
D
Glossy and smooth
검증된 단계별 안내1
Understand that the question is about the physical appearance of polycarboxylate cement when mixed correctly in the laboratory.
Recall that polycarboxylate cement is a type of dental cement known for its specific texture and finish after proper mixing.
Consider the typical characteristics of correctly mixed polycarboxylate cement: it should not be sticky, grainy, or powdery.
Recognize that the correct appearance is described as 'glossy and smooth,' indicating a well-mixed, homogeneous material.
Conclude that the correct answer is 'Glossy and smooth' because this reflects the ideal consistency and finish of the cement after proper mixing.
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