A chemical reaction produces 278 L of nitrogen at STP. How many moles of nitrogen are produced by the reaction?

The minerals found in bones are deposited by living cells called

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

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.