Answer:
Lanthanides and actinides
Explanation:
The inner transition metals consist of two series called lanthanides and actinides.
These are f block elements.
The lanthanide series having elements with atomic number 58-71. These are 14 elements.
The lathanides are mostly used in laser technology.
They deflect the I.R and U.V radiations and used in sun glasses.
The actinides series also consist of 14 elements with atomic number 90- 103.
All the elements have very similar properties.
All acitinides are radioactive.
All inner transition metals are placed at the bottom of periodic table.
Answer:
Explanation:
After the glorious appearance of Full Moon, the lunar shape starts to wane, meaning it gets smaller. It's visible later at night and into the early morning, and we see a steadily shrinking shape of the lunar surface that's being lit up.
It it Asthenosphere because it is the closest to the core ans is comprised of magma
Answer: 36.2 ml
Explanation:
Assmed values :
weight of sulphurous acid = 0.104 g
volume of flask = 250 ml
Molarity of NaOH solution = 0.0700 M
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
where,
n= moles of solute = 
= volume of solution in ml
According to the neutralization law,
where,
= molarity of 
solution = 0.00507 M
= volume of solution = 250 ml
= molarity of 
solution = 0.0700 M
= volume of solution = ?
= valency of = 2
= valency of = 1
Therefore, the volume of solution the student will need to add to reach the final equivalence point is 36.2 ml
