Yes because it helps determine the properties the molecule has.
Answer:
Concentration solution A was 0.5225 M
Explanation:
10.00 mL of solution A was diluted to 50.00 mL and yields 50.00 mL of solution B
According to laws of dilution-
where, and are concentration of solution A and B respectively
and are volumes of solution A and B respectively
Here = 0.1045 M, = 50.00 mL and = 10.00 mL
Hence,
So, concentration solution A was 0.5225 M
Answer:
d. In a stable molecule having an even number of electrons, all electrons must be paired.
Explanation:
<em>Which of the following statements relating to molecular orbital (MO) theory is incorrect?</em>
<em>a. Combination of two 2p orbitals may result in either σ or π MOs.</em> TRUE. If the atomic orbitals overlap frontally, a σ MO is produced while if the atomic orbitals overlap laterally, a π MO is produced.
<em>b. Combination of two atomic orbitals produces one bonding and one antibonding MO.</em> TRUE. The bonding MO has less energy than the antibonding MO.
<em>c. A bonding MO is lower in energy than the two atomic orbitals from which it is formed.</em> TRUE. The bonding MO is more stable than the individual atomic orbitals.
<em>d. In a stable molecule having an even number of electrons, all electrons must be paired.</em> FALSE. Let's consider, for example, the molecular orbitals of O₂:
The electrons in the degenerated π* orbitals are not paired.
<em>e. A species with a bond order of zero will not be stable.</em> TRUE. For a species to be stable, the bond order must be higher than zero.
Carbohydrates, nucleic acids and proteins
Answer:
hydrocarbons are compounds which contains Hydrogen and carbon