Answer:
The volume is 16.7 liters.
Explanation:
STP conditions are:
1 atm as pressure
273 K as temperature (0°C)
So let's get the volume by the Ideal Gas Law, replacing the values.
P . V = n . R . T
1 atm . V = 0.750 moles . 0.082 L.atm /mol.K . 273 K
V = (0.750 moles . 0.082 L.atm /mol.K . 273 K) / 1 atm
V = 16.7 L
The correct answer to this question is communicating
Answer:
B) +2; 6; -2
Explanation:
In order to know what the coordination number is, all we need to do is to count the number of ligands present in the coordination sphere. Coordination number refers to the number of ligands in the coordination sphere of a given complex. The coordination number here is 6.
The counter ion here is 2Na+. It means that the overall charge on the complex must be -2 because the magnitude of charge on the complex ion is exactly balanced by the number of counter ions.
The charge on the metal (x) must now be;
x + 0 + 4(-1) = -2
x - 4 = -2
x = -2 + 4
x = +2
Note that NH3 is designated as zero because it is a neutral molecule. Each NCS^- ion has a charge magnitude of -1.
Tin(Sn)
Explanation:
The element with similar chemical properties with lead (Pb) from the given options is tin(Sn).
- Chemical properties of an element depends on the number of valence electrons they have.
- Element in the same group on the periodic table have similar chemical properties because the number of valence electrons are the same.
- Tin and lead belong to group iv on the periodic table.
- Other elements in this group are carbon, silicon, germanium
- All these elements have similar chemical properties.
Learn more:
Periodic table brainly.com/question/8543126
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