Answer:
the crust is solid because the particles are tightly packed and moves very little. the mantle is a liquid because the particles are more spread apart and have more movement.
Explanation:
i already explained it :)
Answer:
Covalent bonding
Explanation:
In covalent bonding, the electrons are shared to fill the octet rule (8 electrons in valence shell). CCl4 tends to do covalent bonding because the the 4 valence electrons are Carbon are shared with the Chlorine atoms so that each chlorine atom has a full octet and chlorine shares its electrons to fill the octet of carbon.
Also, since carbon and chlorine are both non-metal, non-metal things exhibit covalent bonding thus this is covalent bonding as well. Ionic boding is for metal and non metal pair where electrons are transferrred, in our case, electrons are shared, they are not transferred.
Answer: Reduced
Explanation: Oxidation reaction is defined as the reaction in which a substance looses its electron. The oxidation state of the substance gets increased.

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

Given :
Thus as in the given reaction the oxidation state of the metal has decreased from 0 to-1, it is getting reduced.
Answer:
Molecule #1 ( sobrerol )
Center a: R
Center b: S
Molecule #2 ( pulegone )
Center a: none
Center b: R
Explanation:
The lowest priority group is curved the clockwise configuration of molecule is referred to as S and anti clockwise configuration is R. The absolute configuration of chiral center is defined by Cahn-ingold-Prelog rules. The sobrerol has center a as R configuration and center b as S configuration. The center a configuration of pulegone is none.
Answer:
Physical, Inorganic, Biochemistry, Analytical, and Organic
Physical chemistry deals with applying physics to the study of matter. It's also probably the most important branch. Inorganic chemistry deals with stuff that is chemically composed of elements other than carbon. The branch of Biochemistry concerns itself with living things. Analytical chemistry deals with analyzing and finding out what substances are present in a particular material and how much of each substance is present. Finally, organic chemistry deals with substances that are compounds of carbon.
Explanation: