Answer:
1. Ionic bond
2. High melting point and high boiling point for ionic bonds while covalent bonds have low melting and boiling point.
3. The similarity is that ionic and covalent bonding lead to the creation of stable molecules.
4. 4Fe + 3O2 → 2Fe2O3
5. It uses the process of fission.
6. Fission involves the splitting of radioactive elements into smaller particles/compounds while Fusion involves combining of two or more atomic nuclei to form one or more different atomic nuclei and subatomic particles.
7. Nuclear power plants produce little to no greenhouse gas.
Nuclear power plants produce a large amount of energy for a small mass of fuel.
Nuclear is less expensive.
It does<span>, however, change the </span>mass<span> of the nucleus. </span>Adding<span> or removing </span>neutrons<span>from the nucleus are how isotopes are created. Protons carry a positive electrical charge and they alone determine the charge of the nucleus.</span>
Answer:
The electron from the ground state to occupy a next energy level. In this case,we say that the electron is excited
Here we have to draw the mechanism of the reduction reaction between benzaldehyde and sodium borodeuteride to form the corresponding alcohol.
The reducing agent sodium borodeuteride can reduce the aldehydes to its corresponding alcohol. The reaction mechanism is shown in the attached image.
The reaction mechanism can be explained as-
The sodium borodeuteride is highly ionic in nature thus it remains as Na⁺ and BD₄⁻ The deuterium atom of BD₄⁻ attack the carbonyl carbon atom and substitute one of its deuterium as shown in the figure.
One molecule of sodium borodeuteride can reduce four molecules of benzaldehyde. The polar solvent like alcohol donates the proton as shown in the mechanism.
The converted alcohol contains the deuterium atom at the -C center. Thus benzaldehyde is converted to deuteroted benzyl alcohol.
Answer:
Kj/mol
Its an endothermic reaction
Explanation:
Enthalpy can be evaluated by using following formula -
![q = m * c* \delta T](https://tex.z-dn.net/?f=q%20%3D%20m%20%2A%20c%2A%20%5Cdelta%20T)
where
q is the enthalpy or change in internal energy
m is the mass in kg
c is the specific heat
and
is the change in temperature
Mass of HCl is equal to
g/mol
or
Mass of HCl is equal to
Kg/mol
Substituting the given values in above equation, we get-
![q = 0.03646 * 4.04 * (42.5 - 37)\\q = 0.03646 * 4.04 * 5.5 \\](https://tex.z-dn.net/?f=q%20%3D%200.03646%20%2A%204.04%20%2A%20%2842.5%20-%2037%29%5C%5Cq%20%3D%200.03646%20%2A%204.04%20%2A%205.5%20%5C%5C)
Kj/mol
Enthalpy is positive thus it is an endothermic reaction