At what temperature in degrees Celsius will 5.00 g Cl2 gas exerts a pressure of 2.55 atm and occupies a volume of 7.5L?

Which of the following units is not an official si unit? mole liter kilogram ampere

Draw the lewis dot structure for each of the following polyatomic ions

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.