Answer:
1.42
Explanation: Because 2.12-0.70 equals 1.42
These electrons can<span> either </span>be<span> lost to another atom, or the valence shell may have room ... want to gain or lose an electron, it </span>will<span> never </span>happen<span> with an isolated atom. ... that make it very easy to determine the </span>charge<span> directly from the </span>periodic table. ... He0. Li+<span>. </span>Be+2. B+3. C-4. N-3. O-2<span>. </span>F-. Ne0. Na+. Mg+2. Al+3. Si-4. P-3. S-2<span>.</span>
You need to use the formula--> P1V1= P2V2 (Boyles's law)
P1= 14 bar
V1= 312 mL
P2= ?
V2= 652 mL
now we plug the values into the formula.
(14 x 312) = (P2x 652)
P2= (14 x 312)/ 652= <span>6.70 bar</span>
if I'm not mistaking it would be the second option