Answer:
Yes, they are useful.
Explanation:
They allow us to make use of strengths and benefits of a particular element while not being hampered by it's faults.
Answer:
i) Highest osmotic pressure: CaCl2
ii) lower vapor pressure : CaCl2
iii) highest boiling point : CaCl2
Explanation:
The colligative properties depend upon the number of solute particles in a solution.
The following four are the colligative properties:
a) osmotic pressure : more the concentration of the solute, more the osmotic pressure
b) vapor pressure: more the concentration of the solute, lesser the vapor pressure.
c) elevation in boiling point: more the concentration of the solute, more the boiling point.
d) depression in freezing point: more the concentration of the solute, lesser the freezing point.
the number of particle produced by urea = 1
the number of particle produced by AgNO3 = 2
the number of particle produced by CaCl2 = 3
As concentrations are same, CaCl2 will have more number of solute particles and urea will have least
i) Highest osmotic pressure: CaCl2
ii) lower vapor pressure : CaCl2
iii) highest boiling point : CaCl2
The solution with the highest number of particles in solution (CaCl2 in this case), experiences the highest osmotic pressure, lowest vapor pressure and highest boiling point due to the principles of colligative properties.
The question pertains to the colligative properties of solutions, which would be governed by the number of particles in the solution. The solutions are 0.04 m urea [(NH2)2C=O)], 0.04 m AgNO3, and 0.04 m CaCl2. For (i) Highest osmotic pressure, the solution with the highest ion count would yield the highest osmotic pressure. CaCl2 dissociates into three ions (Ca²+, and 2 Cl¯), therefore, it would exhibit the highest osmotic pressure. For (ii) Lowest vapor pressure, this would coincide with the solution with the highest osmotic pressure, again making it CaCl2, due to the greatest decrease in vapor pressure. For (iii) the highest boiling point, this too would be CaCl2 for the reasons stated above. The presence of more particles in a solution interferes more with the evaporation process, requiring more energy (higher temperature) to achieve boiling.
#SPJ3
Explanation:
The electron configuration you provided is for the element with 3 electrons. The 2p² electron configuration would involve adding two more electrons to the 2p subshell. Let's determine the four quantum numbers (n, l, ml, and ms) for one of these 2p² electrons:
1. Principal Quantum Number (n): In this case, n is the same as the principal quantum number for the 2p subshell, which is 2.
2. Azimuthal Quantum Number (l): The azimuthal quantum number (l) represents the subshell within the principal energy level. For the 2p subshell, l = 1.
3. Magnetic Quantum Number (ml): The magnetic quantum number (ml) specifies the orientation or orbital within a subshell. For the 2p subshell, ml can take on three values: -1, 0, and 1. Since we're describing one of the two 2p² electrons, you can choose either -1 or 1 for ml.
4. Spin Quantum Number (ms): The spin quantum number (ms) represents the spin of the electron. It can have two values: +1/2 (spin up) or -1/2 (spin down). You can choose either +1/2 or -1/2 for ms.
So, one possible set of quantum numbers for one of the 2p² electrons could be:
n = 2
l = 1
ml = 1 (or -1)
ms = +1/2 (or -1/2)
You can choose either ml = 1 and ms = +1/2 or ml = -1 and ms = -1/2 for one of the 2p² electrons, as long as the other electron in the same orbital has the opposite spin.
The quantum numbers of an electron in the 2p orbital with the electron configuration 1s² 2s² 2p¹ are principal quantum number (2), azimuthal quantum number (1), magnetic quantum number (-1, 0 or 1) and spin quantum number (+1/2 or -1/2). These numbers represent the energy level, orbital shape, orbital orientation and electron's spin respectively.
The electron configuration expressed as 1s² 2s² 2p¹ represents how electrons are distributed in an atom's atomic orbitals. Examining this, it indicates that there are two electrons in the 1s orbital, two electrons in the 2s orbital, and one electron in the 2p orbital. The four quantum numbers of the electron in the 2p orbital are principal quantum number (n), azimuthal quantum number (l), magnetic quantum number (m_l), and spin quantum number (m_s).
The principal quantum number (n), denotes the energy level the electron is in, in this case, 2.
The azimuthal quantum number (l), also, known as the orbital quantum number indicates the shape of the orbital, for a 'p' orbital, l = 1.
The magnetic quantum number (m_l), describes the orientation of the orbital - this can have any value from -l to +l. For a 'p' orbital, m_l could be -1, 0, or 1, representing the three 'p' orbitals, 2px, 2py, and 2pz respectively.
Finally, the spin quantum number (ms) will be either +1/2 or -1/2, representing the two possible spin states of an electron.
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B)can be deduced from the balanced equation for the reaction
C)must be measured experimentally
D)depends on the concentrations of reactants
E)is the inverse of the entropy of the system
Answer:
I'm pretty sure it's a I'd its wrong I'm sorry
Answer:
developing solutions to questions through scientific research
Explanation:
Scientific inquiry involves coming up with questions based on observation and reasoning, conducting experiments based on scientific questions,and developing solutions to questions through scientific research.