In the Lewis structure of BF3, how many lone pairs surround the boron atom? NEED ASAP
Select one:
a. 0
b. 1
c. 2
d. 3

Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy