It gained proton with the h+30
B because there is 2 gases in the air that we know of because of the text
Elements in the first row are filling their 1s orbitals. Since hydrogen is the first element, its electron configuration is 1s1 . It has only one electron in its valence shell. Valence electrons are the outermost electrons or electrons in the largest energy level.
<u>Answer:</u>
<em>The percentage error in the measurement is 2.4%
</em>
<u>Explanation:</u>
The measurement made by the student is .
But the actual value of density is
The formula to calculate percentage error is
percentage error =
Hence percentage error in this case is given by
<em>Percentage error =
</em>
<em>=
</em>
A physical quantities value will be determines by various quantities. If errors are made in measuring any of these quantities there will be error in the measurement of the final physical quantity as well.
Here density of a substance is a derived quantity determined by measuring mass and volume of that substance.<em> If errors are made in mass and volume measurements the density value will also be erroneous.
</em>
Answer:
2.33 atm
Explanation:
using gas equation,PV=nRT
here V volume is constant and n&R is also constant
now clearly we can state that
Pressure is directly proportional to temperature
now,temperature changes from 90°C to 30°C
i.e, becomes one third of original
since it's pressure is directly proportional,therefore it will also became ,one third of original
i.e, 1/3 × 7.0 atm
=7/3 atm
=2.33 atm