【单选题】The concentration of HC 2 O 4 - present at equilibrium in a 0.10 M H 2 C 2 O 4 solution is
【单选题】设 C为8阶魔方矩阵,其第三行至第五行,第三列至第五列构成的矩阵,其行列式的值为(本题10分)
【简答题】A solution is 0.10 M in Ag + and 0.10 M in Au 3+ . Which one will precipitate first as sodium chloride is added? Ksp(AgCl)=1.8×10 -10 Ksp(AuCl 3 )=3.2×10 -25
【多选题】以下关于依法治国的基本要求的说法正确的有( )
A.
“有法可依、有法必依、执法必严、违法必究”是党的十一届三中全会提出的社会主义法制建设16字方针。
B.
“科学立法、严格执法、公正司法、全民守法”是党的十八大中提出的全面推进依法治国的新16字方针。
C.
新16字方针表明我国社会主义法治建设进入了新阶段。
D.
新16字方针的内涵更为丰富,更能促进国家治理体系和治理能力现代化
【简答题】Compute [OH - ] and [H + ] in a 0.10 M solution of a weak monoprotic base which is 1.30% ionized. What is the pH of the solution?
【单选题】Which of the following statements is TRUE concerning a 0.10 M HCl solution and a 0.10 M CH 3 COOH (acetic acid) solution?
A.
The concentration of H + (aq) in both solutions is 1.0 ´ 10 -1 .
B.
The HCl solution almost totally ionizes while the CH 3 COOH does not.
C.
They are both considered to be strong acids.
D.
The HCl solution will turn litmus red, while the CH 3 COOH solution will not.
【单选题】下列影响医药产品价格的因素中,哪一个属于企业内部因素?