What is common to both hydrochloric acud and trioxonitrateVacid A. both are used for fountain experiment
B. both are monobasic
C. both are used to prepare hydrogen from zinc granules
D. both attack rubber​

An observation that requires measurement is called quantitative observable or qualitative

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation:

What is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?