Select all of the following that would be acceptable conjugate acid-base pairs to use in the preparation of a pH=9.8 buffer. HCN/KCN H2S/KHS KHSO3/K2SO3 NH4Cl/NH3 KHCO3/K2CO3 HF/KF HNO2/KNO2 KHS/K2S

indium, and thallium have three electrons i think

i need mutiple choices

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.