Its C..... A pegmatitic is a crystals usually larger than 2.5 cm in size.... look in to it? :)
Answer:
Explanation:
gram of Copper sulphate in 350 g solution is 32 x 3.5 = 112
in term of mol = 112 / 159.5 = 0.7022
after crystallisation, gm of copper sulphate in the solution
= 43.75
in term of mole
43.75/159.5 = 0.2743
mole that got precipitated in hydrated form = 0.7022 - 0.2743 =0.4279
in terms of gm of hydrated copper sulphate = .4279 x mol weight of hydrated copper sulphate = .4279 x 249.5 = 106.76 g .
Answer:
c. relative age
Explanation:
Relative age is a method of describing the age of rocks based on their order of appearance in the geologic column.
Events are denoted by their position in the column.
- The premise of most of the assumptions used relative age determination is based on stratigraphic laws.
- Absolute age gives numeric ages to rocks.
Since Luisa is comparing the age of people based on their position in her family, she is using the concept of relative dating.
Answer:
Explanation:
https://www.slideshare.net/Thivyaapriya/inorganic-chemistry-group-2
Has all the info you need!