Your lab-mate observes a large amount of streaking and blurring of their samples when they visualize the TLC plate under UV light. What are two possible solutions to this problem?

Cl₂ light, 20°C

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1) NaBH4 2) H30* aLi

Which of the following alkenes is the most stable? O O The sauna premiu

Four research teams measured the density of a new alloy, and what each team wrote in its team notebook is shown in the table below. 3 Suppose a later and more reliable measurement gives 3.1 g/cm³ for the density of the same alloy. Decide which of the earlier measurements was the most accurate, and which was the most precise. team A B C D what was written in the notebook 3,₁₁ "2.1 g/cm³ "between 3.6g/cm³ and 4.6g/cm³ 3,₁₁ 3 3,₁₁ "2.9g/cm³ +1.0g/cm³ "1.1 g/cm³ ± 20.%" most precise most accurate measurement measurement OO X Ś

77 K to FK = C + 273 C = 5/9 (F-32)

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