Answer:
Sulfur (Option-C) <span>exhibits chemical behavior similar to that of oxygen.
Explanation:
Sulfur has same chemical properties as that of Oxygen because both of them belongs to same group in the periodic table. Also, the similarity of chemical behaviour among the group members is due to same number of electrons in their valence shells.
For examole, the electronic configuration of Oxygen is,
1s</span>², 2s², 2p⁴
There are six valence electrons in the valence shell (i.e. 2) of Oxygen.
Now for Sulfur,
1s², 2s², 2p⁶, 3s², 3p⁴
There are six valence electrons in the valence shell (i.e. 3) of Sulfur.
Therefore, both elements tends to gain 2 electrons in a reaction and form O⁻² and S⁻² respectively.
Answer:
Check the explanation
Explanation:
Taking a look at the image, I have shown only the energy levels and not the proper curves, because we just need to calculate the energy differences.
Here, S2 denotes a ground state molecule while S2* denotes an excited state molecule
The energy D1, required for dissociation of excited state molecule to 2 ground state atoms is -ve, which means no energy is supplied, rather energy is emitted by this spontaneous dissociation.
<span> If mass remains the same while the volume of a substance increases and the density of the substance will decrease or, volume decreases and density increase, 'cause density equals mass divided in volume, which means that volume and density are inversely proporcional</span>
Answer:
The density of this solution is 2.2 g/mL
Option 3 is correct
Explanation:
Step 1: Data given
Volume = 10.0 mL
mass = 22 grams
Step 2: Calculate the density
Density = Mass / volume
Density = 22.00 grams / 10.0 mL
Density = 2.2 grams / mL
The density of this solution is 2.2 g/mL
Option 3 is correct
The two roots of this functions are the exact roots and one is an imaginary root. The -2 is the root of a negative number -16 because if you compute the -2 on its 3rd power you come up -16, the 2 is the root of 16 and the 4+i contains a imaginary number that is why it is an imaginary root