Answer:
0.016 moles of product will obtain.
Explanation:
Given data:
Moles of K = 0.032 mol
Moles of product = ?
Solution:
Chemical equation:
4K + O₂ → 2K₂O
Now we will compare the moles of K with K₂O.
K : K₂O
4 : 2
0.032 : 2/4 ×0.032 = 0.016 mol
0.016 moles of product will obtain.
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.
Exsperements? labs? chemesty? it could be a few things...
Answer:
While positive impacts such as employment and community development projects are important, they do not off-set the potential negatives. We have found mining can negatively affect people by: forcing them from their homes and land. preventing them from accessing clean land and water.