When an electron moves from a higher to a lower energy level, energy is released (often as light).
Confirmation bias<span>, also called </span>confirmatory bias<span> or </span>myside bias, is the tendency to search for, interpret, favor, and recall information in a way that confirms one's preexisting beliefs or hypotheses, while giving disproportionately less consideration to alternative possibilities.[Note 1][1]<span> It is a type of </span>cognitive bias<span> and a systematic error of </span>inductive reasoning<span>. People display this bias when they gather or remember information selectively, or when they interpret it in a </span>biased way<span>. The effect is stronger for </span>emotionally<span> charged issues and for deeply entrenched beliefs. People also tend to interpret ambiguous </span>evidence<span> as supporting their existing position. Biased search, interpretation and memory have been invoked to explain </span>attitude polarization<span> (when a disagreement becomes more extreme even though the different parties are exposed to the same evidence), </span>belief perseverance<span> (when beliefs persist after the evidence for them is shown to be false), the irrational primacy effect (a greater reliance on information encountered early in a series) and </span>illusory correlation<span> (when people falsely perceive an association between two events or situations).</span>
The given question is incomplete. The complete question is as follows.
A 2.300×10−2 m solution of nacl in water is at 20.0∘c. the sample was created by dissolving a sample of nacl in water and then bringing the volume up to 1.000 l. it was determined that the volume of water needed to do this was 999.4 ml . the density of water at 20.0∘c is 0.9982 g/ml.
Calculate the molality of the salt solution.
Express your answer to four significant figures and include the appropriate units.
Explanation:
Molality is defined as the number of moles present in kg of a solvent.
Mathematically, Molality = 
Also,
Mole of solute = Molarity of solute x Volume of solution
= (0.0230 M) x (1.000 L) = 0.0230 mol of solute
Therefore, mass of solvent will be as follows.
= 997.7 g
= 0.9977 kg (as 1 kg = 1000 g)
Therefore, we will calculate the molality as follows.
Molality =
= 0.02306 mol/kg
thus, we can conclude that molality of the given solution is 0.02306 mol/kg.
Answer:

Explanation:
Assuming that temperature is constant
According to Boyle's Law, at constant temperature pressure is inversly proportional to the volume and mathematically it can be expressed as:
..........1




from the first equation after putting all the value
we get,
