How many moles of H2 can be made from complete reaction of 3.0 moles of Al?
Given: 2 Al + 6 HCI - 2 AlCl3 + 3 H2

What is the ph of a solution with a concentration of 5.2 × 10–8 m h3o+?

Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)

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.