Answer:
The charges did not transfer from the cation to the anion to yield the correct subscripts
Explanation:
First of all, we see that we have and in this ionic compound. Since this is a substance, it has a net charge of 0. This means the charge of a cation should be balanced by the charge of the anion.
The lowest common multiple of 3 and 2 is 6, meaning we need:
- \frac{6}{3}=2 cations;
- \frac{6}{2}=3 anions;
Oxygen needs a total of 8 valence electrons, as it's the anion and it gains electrons to obtain an octet. We have 3 oxygen anions in total. Normally, oxygen has 6 electrons, so it needs to gain 2 electrons for each of the 3 oxygen atoms, that is, gain a total of 6 electrons. Those 6 electrons are donated by two aluminum atoms (each having 3 valence electrons), so two aluminum cations are balanced by three oxygen anions.
The Lewis diagram is correct, as it shows an octet on oxygen. We also have the correct charges. The subscripts, though, have to be 2 and 3 for Al and O respectively.
Answer:
Evaporation from the hydrosphere provides the medium for cloud and rain formation in the atmosphere. The atmosphere brings back rainwater to the hydrosphere. The atmosphere provides the geosphere with heat and energy needed for rock breakdown and erosion. The geosphere, in turn, reflects the sun's energy back into the atmosphere.
Explanation:
Answer:
64 g/mol
Explanation:
In one molecule of FeSO4, we notice that we have 4 atoms
Hence, we can say that the molar mass of Oxygen in 1 unit/molecule of FeSO4 is 4 times the molar mass of Oxygen
Molar mass of Oxygen atom (O) = 16 g / mol
Molar mass of Oxygen in FeSO4 = 16 * 4 g / mol
Molar mass of Oxygen in FeSO4 = 64 g / mol
Answer:
A synthetic element is one of 24 chemical elements that do not occur naturally on Earth: they have been created by human manipulation of fundamental particles in a nuclear reactor, a particle accelerator, or the explosion of an atomic bomb; thus, they are called "synthetic", "artificial", or "man-made".
Explanation: hope that helps