A.) 3.14 mol
B.) 6.28 mol
C.) 12.6 mol
D.) 25.2 mol
All of the dots in a Lewis symbol represent the valence electrons of an atom. Valence electrons are responsible for the atom's chemical properties and can be determined by the group number of the element on the periodic table.
All of the dots in a Lewis symbol represent the valence electrons of an atom. Valence electrons are the electrons in the outermost energy level of an atom and are responsible for the atom's chemical properties. The number of valence electrons can be determined by looking at the group number (also known as the column number) of the element on the periodic table.
For example, oxygen (O) is in group 16, so it has six valence electrons. Its Lewis symbol would have six dots surrounding the elemental symbol.
Similarly, chlorine (Cl) is in group 17, so it has seven valence electrons. Its Lewis symbol would have seven dots surrounding the elemental symbol.
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Answer:
The majority of automobiles manufactured prior to 1994
Explanation:
their A/C systems. Since that time, several non-CFC refrigerants such as hydrofluorocarbons (HFCs) have been developed; and many more are in the development process
Answer:
The lithium bromide salt is a neutral salt that when reacted with water, it can dissolve and form a supersaturated, balanced or slightly saturated solution.
If we increase the temperature of said reaction, we promote the dissociation of the molecules, thus helping to dissolve, in this way the solution would form much faster than at 60 degrees Celsius.
Explanation:
As this chemical compound is a neutral salt, we mean that its pH is neutral.
Binary salts are combinations of 2 elements other than hydrogen and oxygen. The union of a metallic element with a non-metallic element forms a neutral salt, while the union of a non-metallic element with another non-metallic element forms a volatile salt.
The types of neutral salts that exist are: fluorides, chlorides, bromides, iodides, astatides, sulfides, tellurides, selenides, nitrides, phosphides, arsenides, antimonides, borides, carbides and silicides.
The part of the nervoussystem is a gray, wrinkled organ consist of millions of neurons is the brain. Therefore, option B is correct.
The nervous system is made up of the brain, spinal cord, and a sophisticated network of nerves. By this system, the body and the brain are transmitted. The brain performs every physical function. The spinal cord moves the brain through the back.
The brain and spinal volume unit are the organs of the central nauseous system. Since they are so vitally important, the brain and spinal cord, which are located in the dorsal body cavity, are protected by a bone shell.
Your entire body is controlled by your brain. Even when you sleep, it controls practically all of your behaviors and runs the show. For something the size of a wrinkled sponge of grey, it was really bad.
Thus, option B is correct.
To learn more about the nervous system, follow the link;
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