Answer: 266.055 g
Explanation:
We have the following data related to this unknown substance:
are the grams of substance
is the molarity of the substance, given by the following formula:
(1)
In this case the volume of solution is
Finding the moles of solute:
(2)
(3)
Now we have to convert this to grams by the following relation:
(4)
Finding :
(5)
(6)
you would probably be able to see the organism's age and/or how long its bones have been fossilized.
PbO
Not sure how to show crisscross method
Make sure adding the charges together=0 and multiply the elements when necessary to balance charge
<em>Answer:</em>
- Yes. Spectral lines produced from the radiant energy emitted from excited atoms are thought to be due to the movements of electrons from high energy level to low energy level of an atom.
<em>Explanation:</em>
There are two types of emission. (1) Emission (2) Absorption
<em>Emission line: </em>
- When electron move from the particular high energy level to particular lower energy level with emitting a discrete wavelength radiations is known as emission spectra
<em>Absorption Line:</em>
- When an atoms get excited by absorbing a discrete radiation with movements of electron from low energy level to high energy level produced absorption line.
<span>c.Solids have a fixed shape, so they do not show random motion of particles.</span>