The system is a system of solid and liquid measurement used worldwide. a. u. s. customary service b. european standard measurement c. metric d. weights and measures

C. metric

Explanation: There are two main measurement systems used in the prescribing of medication. The first is the metric system, which is used throughout the world. The second is the U.S. household system, which is used only in the U.S. and employs the common measurements used in the kitchen and other areas of the home... PF

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l

the correct answer would be b) volume versus temperature, because they are also directly proportional.