Answer:Imole H atoms have a mass of 1.007959. Example Problems: Use dimensional Analysis! 1. How many grams of carbon contain 2.0 moles of carbon atoms? 2.0 moles
Explanation:
Geology belongs to EARTH SCIENCE CATEGORY.
Geology is an earth science that deals with the physical structure and substance of the earth and the processes which they undergo. People who study geology are called geologists and their work has to do with rocks, oceans, atmosphere, earthquake, oil drilling, location of mineral deposits, etc. Life science on the other hand has to do with subjects such as biochemistry and microbiology while physical science has to do with subjects such as chemistry and mathematics.
Answer:
A neutral particle made of an electron and hole
Explanation:
Exciton
It is the combination of an electron and a hole ( hole refers to the vacancy of an electron ) . And , as both the electron and the hole have the same charge but the polarity is opposite , the combination will lead to a neutral compound , i.e. , Exciton have no charge and so neutral .
It is free to move in the nonmetallic crystal and since it charge less , it is difficult to detect it directly .
The correct answer is D.
Increasing the pressure shifts the position of equilibrium towards the side with fewer gas molecules.
