There are 5 layers. The Lithosphere, the Asthenosphere, the outer core, the inner core and the mantel.
Answer:
a. Dipole-dipole bonding
Explanation:
SO2 has dipole-dipole bonding. This is because of the difference in the electronegativities of Sulphur and oxygen. Moreover, the lone pair of electrons on S gives it bent shape with a net dipole unlike CO2 which has a linear shape.( This why CO2 does not have any dipole moment).
So, the correct answer is a.
Answer:
synthesis
it's the reaction of bringing two atoms into one
Na + Cl --> Nacl
or more generally
A + B --> AB
Answer:
One or more number of species which have same number of atomic number but different mass number are called isotopes.
For example, 
are the isotopes of hydrogen.
So here, the atomic number of each of these isotopes is 1 and have different mass number, that is, 1, 2, 3.
Answer:
its a 3/8 you got it your smart
