Sulfur dioxide has a molecular formula of SO2. The balanced
chemical reaction leading to this isas shown below:
<span>S + O2 --->
SO2</span>
Therefore this means that 1 mole of sulfur and 1 mole of O2
reacts to form 1 mol of sulfur dioxide.
Assuming 1 mol of O2 and 1 mol of S for the sake of
calculation, therefore:
mass oxygen, O = (1 mol O2) (2 mol O/ 1 mol O2) (16 g O/
mol O) = 32 g O
mass sulfur, S = 1 mol (32 g / mol) = 32 g
Therefore the ratio of O to S is:
O:S = 32 g O / 32 g S = 1 g O2/ 1 g S
<span>Hence, there is 1 g of oxygen per 1 g of sulfur in sulfur
dioxide.</span>
Answer:
The electron cloud - or - electron orbitals
Explanation:
Protons and neutrons are held in the nucleus of the atom; electrons orbit around the nucleus in orbitals. Modern atomic theory tells us that these orbitals are not necessarily a circular or elliptical path but more like a cloud-like area where electrons are likely to be found at any given time.
Answer:
Our discussion up to now has centered on types of bonds that involve. This kind of bonding is called ionic bonding (as you are almost certainly already aware). NaCl is a solid at room temperature, with a very high melting point (801 °C), similar highly reactive metal – sodium (Na), and a pale green gas – chlorine (Cl2).
Explanation:
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Answer:
Density: The molecules of a liquid are packed relatively close together. Consequently, liquids are much denser than gases. The density of a liquid is typically about the same as the density of the solid state of the substance.
In a gas, the distance between molecules, whether monatomic or polyatomic, is very large compared with the size of the molecules; thus gases have a low density and are highly compressible. In contrast, the molecules in liquids are very close together, with essentially no empty space between them
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According to Coulomb's Law, as the atomic number increases within a series of atoms, the nuclear attraction for electrons will also increase, thus pulling the electron(s) closer to the nucleus.