Answer:

Explanation:
We will need an equation with masses and molar masses, so let’s gather all the information in one place.
M_r: 315.46 76.12
Ba(OH)₂·8H₂O + 2NH₄SCN ⟶ Ba(SCN)₂ + 2NH₃ + 10H₂O
m/g: 6.5
1. Moles of Ba(OH)₂·8H₂O

2. Moles of NH₄SCN
The molar ratio is 2 mol NH₄SCN:1 mol Ba(OH)₂·8H₂O

3. Mass of NH₄SCN

The higher the energy density of a fuel, the greater the amount of energy it has stored.
<h3>What is the energy density?</h3>
The energy density of a fuel is defined as the amount of energy it possesses per unit volume or per unit weight.
<h3>Characteristics of the energy density</h3>
- It is the amount of energy accumulated in an energy vector per unit volume or mass.
- In general, higher density energy sources and carriers are preferable, as many end uses require concentration of such energy.
- The packaging of energy in liquid hydrocarbons is the one with the highest energy density, that is, the highest energy per volume unit, hence its high use in the transportation sector.
Therefore, we can conclude that in general, fuels, especially low molecular weight fuels, have high energy densities.
Learn more about the energy density here: brainly.com/question/2165966
<span>Answer:
if it was planar the center of the negative forces and the center of the positive forces would be at the same place, meaning no di-poles would form so it wouldnt be polar. as it is polar it therefore cannot be planar.
the neagative center(pole) is above the the positive one due to the pair of unbonded electrons.</span>
Answer:
This addition follows MarkowniKov's rule
Explanation:
The image attached shows the mechanism of the reaction. It can easily be seen that a secondary carbocation is formed leading to the alkanol. The image simplifies the mechanism which involves the initial addition of the hydroxide followed by the hydrogen ion.