What do the elements in Group 2 have in common? A. They tend to form ions with a -2 electric charge.

B. They tend to form ions with a +2 electric charge.

C. They are all highly reactive nonmetals.

D. They are all found in nature in their pure forms.

At stp, what is the volume of 1 mole of co2?

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas