a buffer is prepared by mixing 2M NH3 and 2M NH4cl to enough water to form 1L of solution. what is ph of buffer​

Which of the following electromagnetic waves can create ions?

What is the mass of 0.46 mil of mgcl2

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.