4. Which two compounds contain the same total number of atoms? A C3H8 and C2H6
B NO2 and КСІ
С 2 Li2S and BeCl2
D
2CO
and
CO2

Which are forms of frozen water? check all that apply. dew frost hail rain sleet

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

Which type of intermolecular force is pbr3