There is no more than 1 sigma bond between any two atoms.
Molecules with rings have supplementary sigma bonds, such as benzene rings,
which have 6 C−C
sigma bonds within the ring for 6 carbon atoms. The anthracene molecular
formula is C14H10, it has three
rings so that the rule contributes the number of sigma bonds as 24 added with 3
is 27, which will be subtracted with 1 which will give 26.
Answer:
energy from a source that is not depleted when used, such as wind or solar power.
Explanation:
Answer is: Louis Pasteur (1822-1895) disproved spontaneous generation. He boiled liquid with proteins and other nutrients in S-neck flasks and regular flask to kill all microorganism present. In regular flask liquid showed changes when exposed to air and in S-neck flack there was no change (microorganism can not getting in the flask because the S- neck). When he removed S-neck, liquid changed because microorganisms came in liquid.
Pasteur showed it was not the air itself but particles within the air that had microorganisms.
Heat energy added to the water is.
A solid that has a high to very high melting point, great hardness, and poor electrical conduction is an : E. Ionic solid
Ionic solid consist of oppositely charge ions. One of the example of Ionic solid is salt (NaCl)
hope this helps
