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Mass start race: a race in which the group starts and the place is decided according to the time. On the track or road, the number of participants is limited

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Points elimination is the elimination of points at a certain number of laps for the leading athlete, after the elimination of the lagging athlete

When αM(L)=1

A. There is no side effect between M and L
B. The side effects of M and L are quite severe
C. M has a smaller side effect
D. [M]=[L]

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A mixed solution containing Cl- and CrO42- ions, both at concentrations of 0.10 mol·L-1, was gradually driped into AgNO3 solution (ignoring changes in volume). Which of the following statements is true. ( ).[KspӨ(AgCl)=1.77×10-10,KspӨ(Ag2CrO4)=1.12×10-12]

A. Red precipitate, and then form white precipitate
B. White precipitate, and then form red precipitate
C. The simultaneous formation of red and white precipitates
D. Cannot be determined

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The discoloration of fluorescent yellow indicator is adsorbed by Ag+ adsorbed precipitation particles because of its negative ions.

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