2. Four metals, A, B, C, and D, react spontanously with their nitrate salts as shown below: 2A NO, (aq) + B(s) → B(NO3)2(aq) + 2A(s)

C(NO3)2(aq) + B(s) → no reaction

2D NO,(aq) + C(s) → no reaction

Arrange these four metals into brief activity series such as shown in Table J of the Reference Tables for Physical setting/Chemistry ​

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

the answer is 2-methylbutane. i just took a quiz and i got it wrong and this is what my teacher sai the correct answer was.