When carbon is burned in air, it reacts with oxygen to form carbon dioxide. when 19.2 g of carbon were burned in the presence of 68.9 g of oxygen, 17.7 g of oxygen remained unreacted. what mass of carbon dioxide was produced?

Each of the following compounds contains a metal that can exhibit more than one ionic charge. provide systematic names for each of these compounds. (a) cr(clo3)6 (b) mo(cn)6 (c) cr2(so3)3 (d) v(clo2)2 (e) v(cn)5 (f) os(clo2)4

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

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.