Answer:
C. the carbons in ethene are linked by double bonds
Explanation:
The reason for the lack of free rotation about the carbons of ethene is that they are linked with with double bonds.
In single bonds afforded with the ethane compound, there is free rotation.
The double bonds confer a special restriction on the rotational potential of the bonded atoms round the carbon.
There are 4 general types of intermolecular forces: electrostatic force, London dispersion force, Dipole-Dipole force and Hydrogen Bonding.
Electrostatic force is the force between opposite charges; London dispersion force is common for nonpolar molecules, dipole-dipole forces common in polar molecules while hydrogen bonding is for molecules having either O-H, N-H and F-H bonds.
H₂O: Since water has 2 O-H bonds and it is polar, the intermolecular forces are hydrogen bonding and dipole-dipole forces
CO: It is polar sothe answer is dipole-dipole forces.
HCl: This is also a polar molecule, so dipole-dipole forces.
CO₂: This is a nonpolar molecules, so the answer is London dispersion forces.
Air, glass, plastic, wood, rubber are good insulators
To improve the efficiency of fireplaces, technologies such as A. addition of catalytic combustors and B. <span>addition of boilers are used in so far. Addition of catalytic combustors hastens the process and makes use of inerts that cannot be used. The addition of boilers also adds to the efficiency by converting fluids to higher temperatures,</span>
Subtract the number of electrons from the protons. neutrons have no charge so those don't matter in the formula
