Bromine has an average atomic mass of 79.80 amu with two naturally occurring isotopes: Br-79 (78.92 amu) and Br-81 (80.92 amu). What is the abundance of the heavier isotope?

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

V1t2 = v2t1 is an expression of who’s law

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.