Answer:
sp2
Explanation:
Orbital hybridization is defined as the changes in the orbitals of atoms when they pair with electrons of other atoms to form chemical bonds.
C atoms in C2Cl4 or tetrachloroethene have a total of three bond pairs, two with each chlorine atom and one with other carbon atom and zero lone pairs. Thus, C atoms in C2Cl4 is sp2 hybridized.
Hence, the correct answer is "sp2".
There are 4 energy sublevels are present in the principal energy level n = 4.
<h3>What is sublevels?</h3>
Sub-level is a type of level that is lower than another level or it is a part or component of a big level. S, p, d and f are the four energy levels in which electrons are present.
So we can conclude that 4 energy sublevels are present in the principal energy level n = 4.
Learn more about energy here: brainly.com/question/13881533
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<u>Answer:</u> The mass percent of ethylene glycol in solution is 14.2 %
<u>Explanation:</u>
We are given:
Molarity of ethylene glycol solution = 2.45 M
This means that 2.45 moles of ethylene glycol is present in 1 L or 1000 mL of solution.
- To calculate the mass of solution, we use the equation:
Density of solution = 1.07 g/mL
Volume of solution = 1000 mL
Putting values in above equation, we get:
- To calculate the number of moles, we use the equation:
Moles of ethylene glycol = 2.45 moles
Molar mass of ethylene glycol = 62 g/mol
Putting values in above equation, we get:
- To calculate the mass percentage of ethylene glycol in solution, we use the equation:
Mass of solution = 1070 g
Mass of ethylene glycol = 151.9 g
Putting values in above equation, we get:
Hence, the mass percent of ethylene glycol in solution is 14.2 %