Consider the reaction. :0: 1. NABH. 2. D;0 H. Complete the electron-pushing mechanism for the reaction by drawing the necessary organic structures and curved arrows for each step. Make sure to include all nonbonding electron pairs. Step 1: Add curved arrows for the first step, treatment with NaBH,. Treat Na* as a spectator ion. Select Draw Rings More Erase B Na Na+ :0 : H H H

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A: To predict the products and show mechanism using curved arrows.

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.