Technician a says that using lower octane fuel in vehicles designed for premium fuel, will cause serious engine damage. technician b says that some octane boosters will cause discoloration of the porcelain on the spark plug tip. which technician is correct?

Technician B only is correct and Technician A is wrong

Explanation:

Technician B only is correct and Technician A is wrong because

using lower octane fuel will only affect the power and does not damage the engine and some octane booster will discolor porcelain on the spark plug.

Octane number is figure indicating the antiknock properties of a fuel based on comparison with the mixture of isooctane  and n-heptane

Hence we can say that Technician B only is correct and Technician A is wrong

n+h→nh3

we must remember that nitrogen and hydrogen are both diatomic molecules in their standard gas form. this adjusts the equation to

n2+h2→nh3

now we need to adjust coefficients in order to balance the atoms on each side of the equation. currently we have 2 atoms of nitrogen and 2 atoms of hydrogen on the reactant side and 1 atom of nitrogen and 3 atoms of hydrogen on the product side.

we can balance the hydrogens by placing a coefficient of 2 in front of ammonia and a coefficient of 3 in front of the hydrogen.

n2+3h2→2nh3

this gives us 6 hydrogen on each side and coincidentally the nitrogens now equal 2 on each side.