What glassware - beaker, volumetric flask, erlenmeyer flask would you use to make precisely 20 ml of a 0. 15m and 0. 075 m solutions? briefly explain your reasoning.

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols

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.