Suppose you have a solution that might contain any or all of the following cations: Cu2+, Ag+, Ba2+ and Mn24. The addition of HBr causes the precipitate form. After the precipitate is separated by
filtration, H2SO4 is added to the supernatant liquid, and another precipitate forms. This precipitate is
separated by filtration, and a solution of NaOH is added to the supernatant líquid until it is strongly
alkaline. No precipitate is formed. Which ions are present in each of the precipitates?
Ос?
ng
O
Bo2
Mn2

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes.which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature.sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent

Areader can tell that the meaning of “obnoxious” will include “having the quality of something” because of the .a) prefix b)pronunciation c)suffix d) word root