通常情况下,使难溶电解质溶解的方法有生成弱电解质(弱酸弱碱)、生成配位化合物、发生氧化还原反应等。
A. 对
B. 错
难溶电解质AB2饱和溶液中,c(A+) = x mol/L、c(B-) = y mol/L,则Kspθ值为( )
A. xy2/2
B. xy
C. xy2
D. 4x2y
在任何给定的溶液中,若Q < Kspθ ,则表示该溶液为过饱和溶液,沉淀从溶液中析出。
A. 对
B. 错
Tick off the facts about Starbucks mentioned in the passage.
A. It is a refreshing drink.
B. It is an Italian coffee bar.
C. Howard Schultz founded the company.
D. There are 18,000 Starbucks all over the world.
E. The name of the company comes from Moby Dick.
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