Which of these results from destructive interference?
two waves bounce off each other.
two waves subtract from each other.
two waves add to each other to form a large wave.
two waves increase their speed together.

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.

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Which of the following is the correct formula for copper (i) sulfate trihydrate? cuso4 · 3h2o cuso4(h2o)3 cu2so4(h2o)3 cu2so4 · 3h2o