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10 11 12 13 14 15 16 17 18 19 20 Calculate the solubility of BaCro, in water at 25 °C. You'll find K data in the ALEKS Data tab. sp Round your answer to 2 significant digits. Continue MacBook Air

Maaliol is a fragrance found in patchouli oil. Draw the missing products and/or reagents in this synthesis of maaliol. Use a dash or wedge to indicate relative stereochemistry of substituents on asymmetric centers, where applicable. pa M H Os04 1. NH2NH2, KOH 2. SeO2 3. NH2NH2, KOH 7 Br ✔ o

5. This question has two parts a. and b. a. Assuming 100% yield, how much hexynyl lithium (in mmol) is produced from the reaction of LiHMDS with 1- hexyne? (mmol) b. Insert an image (.jpeg, png, .heic) showing all of your calculations for the moles of hexynyl lithium above. Note: Click on the image icon in the box below to upload/attach an image file. W

A student measured the melting point range of an unknown solid to be 81.9 to 82.3 degrees celsius. a) Is the compound pure? b) Can you identify the compound from Table 2.2? c) If yes, what is the compound? Table 2.2: Solid - Melting Point (Celsius) Benzoic Acid - 122 Acentanilide - 114 Acetamide - 82 Biphenyl - 71 p-Dimethoxybenzene - 59 p-Dichlorobenzene - 54 Benzophenone - 48

11-The branch of chemistry that is responsible for studying the elements and their compounds, excluding almost all carbon compounds ("C") is known as:Unique option. A) Biochemistry B) Analytic chemistry   C) Chemistry-physics  D) Inorganic chemistry   E) Organic chemistry

CONCLUSIONS: In general, the boiling points of compounds increase down a group in the periodic table. The melting points and boiling points for the hydrogen compounds of group 6A elements are in the table below. Melting Point (°C) Boiling Point (°C) H₂O 0.0 100.0 H₂S -82.0 -60.0 H₂Se -65.7 -41.2 H₂Te -49.0 -2.2 Use your understanding of chemistry to propose an explanation for the anomaly in the trend for the hydrogen compounds of group 6A elements shown in the table.

Question A graduated cylinder initially contains 48.6 mL water. When a piece of jewelry is submerged in the graduated cylinder, the total volume increases to 61.2 mL. What is the volume of the piece of jewelry? Select the correct answer below: O109.8 cm³ O61.2 mL O 12.6 cm³ 48.6 cm³ Content attribution O C H U 8 411 FEEDBACK MORE INSTRUCTION + 8 SUBMIT Rain to stop ←backspace 7

Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on.