A 67.0 mL portion of a 1.60 M solution is diluted to a total volume of 268 mL. A 134 mL portion of that solution is diluted by adding 131 mL of water. What is the final concentration

Which statement about the stamps is correct?

In which situation can a mixture always be called a solution

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.