The answer is A warm air rises cool air sinks
Answer:
A) high spin complex
B) low spin complex
Explanation:
A) VCI3(H20)3 is a high spin complex and this is because the complex has a weak field ligands all . this weak field ligands makes it impossible for pairing to take place
B) Fe(NH3)23 is a low spin complex and this is because the complex is made up of strong field ligands, this strong field ligands makes it possible for paring to take place
note : Ligands in which its donor atoms are ; Nitrogen,phosphorous or carbon are considered strong ligands
Answer:
2. Decreases
Explanation:
From the combined concept of entropy and the second law of thermodynamics, it can be concluded that during the positive change in entropy, the degree of randomness of a system increases.
But in case of photosynthesis, we see a negative entropy change because in the process of photosynthesis plants take disordered things as 
from the atmosphere and water from soil and finally make a highly ordered molecule Glucose, which is further used as a food product and source of energy by the plants. Thus it is clear that degree of randomness in decreasing in the process of photosynthesis and it is a negative change in entropy.
If the earth rotates 360 degrees at 100,000 mph the core of the earth would start burning up the entire human population would go extinct we would have to have an escape pod to go to mars and make a new home there
Sodium (Na) is atomic number 11, so it has 1 valency
While Nitrate (NO₃) has valency 1
Sodium has an extra electron while nitrate needs an extra electron, sodium gives its electron to nitrate and forms a bond,
NaNO₃ (Sodium nitrate)
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