The answer is D: A metal is added to an acid and hydrogen gas is formed, because that's a chemical reaction
Answer:
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
6787.67458865446899675566
The first step is to focus on the parent carbon chain:nonane. This indicates a carbon chain with 9 carbon atoms. From here, on the 4th carbon from one side, place a Br functional group; on the 2nd carbon, place a I functional group; on the 5th and 6th carbon, place a CH₃ (methyl) functional group to each. Lastly, complete the bonding with H atoms. The structure is shown in the attached picture.
Solution:
Atomic mass = ΣzₓAₓ zₓ = relative abundance of the isotope
and Aₓ = the atomic mass of the isotope.
Atomic mass = (0.0946x85.91) + (0.07x86.91) + (0.8354x87.91)
= 87.65 amu