Which is a conjugate pair in the following equilibrium? H2C204(aq) +HPO42 (aq) = HC204 (aq) + H2PO4 (aq)
OA. HPO42- and HC204
OB. HPO42- and H2P04
OC. H2C204 and HPO42-
O D.
H2C204 and H2P04

relative humidity is a measure of the amount of moisture in the air relative to the total amount of moisture the air can hold.

so d

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year