Answer:
the number of protons is called the atomic number
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Answer is c. salt and water
Answer:
Beryllium-9 is the isotope of beryllium with relative atomic mass 9.
Answer : The total pressure at equilibrium is 0.350 atm
Solution : Given,
Initial pressure of
= 0.350 bar
= 0.016
The given equilibrium reaction is,

Initially 0.350 0 0
At equilibrium (0.350-2x) x x
The total pressure at equilibrium = 
Thus, the total pressure at equilibrium is 0.350 atm