Convert 4L. oxygen gas at STP to grams
O 3X10^3 g
O 6g
O 3 g
O 1X10^23 g

How have the greenhouse gasses increased from the year 2000 to 2018

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.

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.