Answer:
The Sun warms our planet, and with the Moon, creates the tides. ... The Moon orbits the Earth, the Earth orbits the Sun. What does the Moon, Earth, and Sun have in common? Because they appear to be the same size in the sky, the Sun, Earth and Moon work together to create eclipses. they also create light
The solubility in g/l of lead (ii) fluoride in water at 25°C if ksp of PbF2 is 4. 1 x 10-8. is 5.3 ×10^(-1).
When PbF₂ dissolves, it dissociates as follows;
PbF₂ --> Pb²⁺ + 2F⁻
If molar solubility of PbF₂ is x, then molar solubility of Pb²⁺ is x and F⁻ is 2x.
ksp is solubility product constant and it can be calculated as follows;
ksp = [Pb²⁺][F⁻]²
ksp = (x)(2x)²
ksp = 4x³
To calculate solubility in terms of g/L, we have to know the molar mass of PbF₂.
Solubility of PbF₂ is 
mol/L x 248 g/mol = 
g/L
Thus, we concluded that the solubility of given solution is 5.14 × 10^(-1). which is approx 5.3 × 10^(-1).Hence option D is the correct option.
Learn more about solubility: brainly.com/question/14366471
#SPJ4
Answer:
<h2>C) All of the hydrogen atoms of benzene are equivalent.</h2>
Explanation:
Benzene is an aromatic hydrocarbon made up of six carbon atoms and six hydrogen atoms. Each hydrogen atom of the benzene is equivalent to each other. Due to the delocalized electron, it shows resonance property and thus is more stable. Mostly benzene shows substitution reaction than in addition reaction. It shows planarity and follows Huckle's rule. It forms many important derivative aromatic compounds.
Answer:
Photic Zone
Explanation:
The photic zone is the uppermost layer of the sea that recieves sunlight allowing phytoplankton to perform photosynthesis.
