Provide a structure for the following compound: molecular mass 71; ir: 3200 (strong, broad), 2250 cm^–1; no absorptions in the 1500–2250 cm–1 range; 1h nmr: δ 2.62 (2h, t, j = 6 hz), δ 3.42 (1h, broad s; eliminated by d2o shake), δ 3.85 (2h, t, j = 6 hz).

Which is true of the reactants in this displacement reaction? fe + 2hcl fecl2 + h2 a. the reactants are located to the left of the arrow in the chemical equation. b. the reactants contain 1 iron atom, 2 hydrogen atoms, and 1 chlorine atom. c. the reactants are the atoms, molecules, or compounds formed in the reaction. d. the reactants have the same physical and chemical properties as the products.

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.