Which of theses chemical equations are balanced. a. h2oso4+2al> al2(so4)3+h2 or b. 2kcl+pb(no3)2> 2kno3+pbcl2

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i. e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.