Which compounds are the Brønsted-Lowry bases in this equilibrium: HC204 + H2B03H3BO3 + C2042-?
OA.
H2B03 and H3B03
OB.
HC204 and H3B03
OC. HC204 and C2042-
OD. H2B03 and C2042-
OE.
HC204 and H2B03
(need help asap)

What does x represent in the formula for the compound xcl4?

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action

If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?