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Listening Quiz: Thảo Luận Tính Chất Hóa Học Cho Thiết Kế Thử Nghiệm – Easy Level
Th3 5, 2024
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bởi
Anna Phạm
trong
Tiếng Anh Hóa Học (English for Chemistry)
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1.
What is the conversation mainly about?
How to cook with enzymes and small molecules
How to design an assay by checking chemical properties
How to choose the best laboratory equipment
How to prepare a presentation for a science class
Explanation:
Jessica asks for help with her assay, and Paul explains that she should check solubility and pH stability of the chemicals she is using.
2.
What chemicals is Jessica using?
Cells and tissues
Enzymes and small molecules
Proteins and salts
Acids and bases
Explanation:
Jessica says, “I am using enzymes and small molecules.”
3.
Why does Paul say solubility is important for the assay?
Because it changes the temperature of the assay
Because chemicals that do not dissolve well may cause the results to fail
Because it makes the assay faster
Because it improves the color of the sample
Explanation:
Paul explains, “If chemicals do not dissolve well, results may fail.”
4.
What does Paul tell Jessica to look at after solubility?
The cost of the assay kit
The size of the laboratory room
The pH stability of her chemicals
The speed of the microscope
Explanation:
Paul says, “Look at the pH stability of your chemicals.”
5.
What will Jessica most likely do next?
Buy new chemicals without checking them
Ask Paul to design a different experiment
Test the solubility and pH of her chemicals
Stop working on the assay entirely
Explanation:
Jessica says, “I will test solubility and pH,” which shows the next step she plans to take.
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