Given cyclohexane in a chair conformation, substitute two of the H labels with bromine and chlorine to construct the more stable conformation of cis-1-bromo-3-chlorocyclohexane. Use the numbering provided on the ring.

the answer is 1-Bromo-3-chlorobenzene. Attached file is the answer.

Explanation:

Equatorial position of bonds provides greater stability for the chair conformation.

Cis-configuration is ensured by aligning both dash bonds to be downwards directed.

The final product is a compound 1-Bromo-3-chlorobenzene.

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.