Answer:In the chemical formula Al2(SO4)3, the Al2 means there two aluminium (atoms or ions). The SO4 is a sulfate ion and (SO4)3 means there are 3 sulfate ions. The number 3 before Al2(SO4)3 means there are three times the number of atoms and ions of the chemical formula.
Explanation:
The kinetic energy of translation
m= mass v= linear velocity
The kinetic energy of rotation
I= MOI of the thin walled sphere =kmR^2
where ω= v/R= angular velocity
Then
=1/k
solid sphere: k=0.4; E1/E2 =1/0.4 = 2.5;
hollow sphere: k=2/3; E1/E2 = 1.5
Answer:
One gram of carbon dioxide contains 13.6 x 10²¹ number of molecules.
Explanation:
Answer:
A Planet
Explanation:
The earth for example, is a large body that orbits the sun, our local star
Answer:20
Explanation:because you have to devide
