Answer:- B. 4.65 g.
Solution:- The given balanced equation is:

It asks to calculate the mass of silver sulfide formed by when 0.0150 liters of 2.50 M of silver nitrate are used.
Moles of silver nitrate are calculated on multiplying it's liters by its molarity and then on multiplying by mol ratio, the moles of silver sulfide are calculated. These moles are multiplied by the molar mass to convert to the grams.
Molar mass of
= 2(107.87)+32.06 = 247.8 g per mol
The dimensional set up for the complete problem is:

= 
So, the correct choice is B. 4.65 g.
The dew point would be about 22 . (this is C )
Answer:

Explanation:
H₂O(ℓ) ⟶ H₂O(g)


Data:
T = 25 °C
ΔG° = 8.6 kJ·mol⁻¹
Calculations:
T = (25 + 273.15) K = 298.15 K

Standard pressure is 1 bar.

Answer:
These are Kepler's Laws of Planetary Motion
Explanation:
Explanation: Oxygen plays a very vital role in the life of aquatic animals. The dissolved oxygen in the water helps them to breathe under water.
Optimum level of oxygen for deep living animals like oysters, bottom feeders, crabs is around (1-6 mg/L), while the animals living on the upper side like fishes require a higher amount of around (4-6 mg/L).
If the oxygen concentration in the pond is not optimum, there will no aquatic life and hence, the ecosystem will be affected.
Hence, oxygen concentration affects the fishes that live in the pond to a higher extent.