Suppose scientists have found three oxide materials that could potentially be used as a cathode to a magnesium or sodium anode in a battery for electronics. Plan an investigation to determine the best battery. What characteristics would you test for?

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.

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer