. In a liquid-liquid extraction, what is the purpose of washing the organic layer with saturated sodium chloride (brine)?

10. Molecules that interact with the infrared region of the electromagnetic spectrum, use the energy of the infrared radiation to: a. vibrate b. rotate (spin) c. break bonds apart

The following arrows are incorrectly drawn and I drawn them correctly please check if it's right and write a little explanation how it's right

What are A, B, and C in the following table, and explain each of them briefly? E₁ A: MA hv=E₂ - E₁ M B: E₁ M M M hv=E₂-E₁ C: E, E₁

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.

11. 1) Zn(Hg), HCI Ph 2) NBS, UV light (1 equivalent) OCH,CH3 12. 1) Br2, Fe 2) H2O, H3O*

Predict the MAJOR carbon-containing product(s) of each reaction. Show stereochemistry where applicable and draw out ALL stereoisomers that are formed as MAJOR products. Assume all reagents are in excess. yul i) LIAIH4 ii) H30* H.