Ca(s) + 2H2O(l) + Ca(OH)2(aq) + H2(9) When 40.1 grams of Ca(s) reacts completely
with the water, what is the total volume, at STP,
of II,(g) produced?
(1) 1.00 L
(3) 22,4 L
(2) 2.00 L
(4) 44.8 L

The element that has the greatest electronegativity is

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.

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.