Answer: Crystals are formed by the earth and the earth itself otherwise then its a fake crystal
Explanation:
Every crystal that exists was formed when earth was formed. Take diamonds for example, All diamonds were crushed for millions of years by the earth and that's why they are so valuable. All diamonds are just coal.
So your answer is no but fake crystals yes
Answer:-
0.3 moles
Explanation:-
According to the question,
Volume of nitrogen gas V = 6.8 litres.
Pressure of nitrogen gas P = 100 kPa.
Temperature of nitrogen gas T = 273 K.
We know the value of universal gas constant R = 8.314 litres kPa K−1 mol−1
Using the relation
PV = nRT
We have Number of moles of nitrogen gas n = P V / RT
= 100 kPa x 6.8 litres / ( 8.314 litres kPa K−1 mol−1 x 273 K)
= 0.3 mol
Thus there are 0.3 moles of nitrogen gas in 6.8 liters at standard temperature and pressure (273 K and 100 kPa)
Cheeze is the most one i hope it helps
