Which element is present in every organic compound?
(1) carbon (3) nitrogen
(2) fluorine (4) oxygen

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.

What was the procedure by which case united states vs lopez went to court

What is the temperature of one mole of helium gas at stp?