Answer:
need more info
Explanation:
i think so we need more info

Actually Welcome to the Concept of the Ionic bonds.
Since Sodium (Na) is a cation and Chlorine (Cl) is a Anion, they both form a Ionic bond called as NaCl (common salt)
So answer is, Na and Cl
POH = - log [ OH⁻ ]
pOH = - log [ 1 x 10⁻⁹ ]
pOH = 9
Answer C
hope this helps!
Explanation:
The given data is as follows.
Mass of refrigerant, m = 10 kg
Volume of the refrigerant, V = 1.595 
Formula for specific volume of the refrigerant is as follows.
v = 
= 0.1595 
So, at
specific volume will be within
and
and pressure is constant.
The fluid will be in super-heated state at temperature
and at T =
pressure 1 bar = 0.1 MPa.
According to super-heated tables, the specific volume is v = 0.30138
.
Hence, the final volume will be calculated as follows.

= 
= 3.0138 
Thus, we can conclude that final volume of the R-134a is 3.0138
.