Explanation:
first one because absolute dating is a thing for rock layers
A cow's<span> digestive system is quite different from that of humans. </span>Cows eat grass, hay and other plant material that contain hard-to-digest<span> cellulose. To cope with this </span>they<span> have a large stomach with four compartments, with the largest being the rumen.</span>
Answer:
Option A. It has stayed the same.
Explanation:
To answer the question given above, we assumed:
Initial volume (V₁) = V
Initial temperature (T₁) = T
Initial pressure (P₁) = P
From the question given above, the following data were:
Final volume (V₂) = 2V
Final temperature (T₂) = 2T
Final pressure (P₂) =?
The final pressure of the gas can be obtained as follow:
P₁V₁/T₁ = P₂V₂/T₂
PV/T = P₂ × 2V / 2T
Cross multiply
P₂ × 2V × T = PV × 2T
Divide both side by 2V × T
P₂ = PV × 2T / 2V × T
P₂ = P
Thus, the final pressure is the same as the initial pressure.
Option A gives the correct answer to the question.
A) It becomes a negative ion
Answer:
This compound is Ammonium Sulphide and has molar mass 68 g/mol.
Explanation:
- Molar Mass : It is the mass of 1 mole of the substance and in grams.Its units are gram/mole.
- It is numerically equal to mass of the substance in atomic mass units
How to calculate Molar mass :
grams/mole
Molar mass of Ammonium sulphide is 68 g/mol
