Answer:
~0.0004
Explanation:
n=0.072/(56+(35.5*3))=0.072/162.5~~0.004
1) The set of quantum numbers (4, 2, 1, +1/2) represent this:
a) first quantum number, 4: is the the main quantum number, it represents the main energy level, if it were the last electron of the atom, that means that the electron belonged to an element in the row number 4 of the periodic table, that is one element between the atomic numbers 19 and 36.
b:second quantum number, 2; is the sub-level of energy, it indicates the kinf (shepe) of orbital, the number 2 means that the orbital is type d.
c. third quantum number, 1: it represents the orientation of the orbital in the space.
d. fourth quantum number, +1/2: it is the spin quantum number, given that two electrons in an atom cannot have the same set of four quantum numbers and two electrons can share the same orbital, when one electron has spin +1/2 the other electron in the same orbital has opposite spin (- 1/2).
2) Set of quantum numbers (4, 1, 1, +1/2).
This electron is in the same main energy level than the previous one (4), but it is in a p orbital (second quantum number = 1), instead of a d orbital, and the orientation is px (third quantum number = 1). The spin is +1/2 the same as the other electron.
The most common component of sand is silicon dioxide in the form of quartz. Simple version just broken down rocks and minerals.
This problem is providing us with the mass equivalent to one troy ounce. Thus, the troy ounces of gold in one short ton of average Nevada ore is required and found to be the 0.103 otz according to the following dimensional analysis.
<h3>Dimensional analysis</h3>
In chemistry, a raft of problems do not always provide an equation in order to be solved yet dimensional analysis can be applied, so as to obtain the desired amount in the required units.
Thus, since this problem asks for try ounces in an average Nevada ore, which has 3.2 grams of gold per short ton of ore, one can solve the following setup in order to obtain the required answer in otz:
Where the short tons are cancelled out as well as the grams, in order to obtain:
Learn more about dimensional analysis: brainly.com/question/10874167
Answer:
legs of table +10N and -10N. fish tank +120.N - 70N. top of table +70N.
+120N. botom of fish tank -120N. and plz dont delit my anser
Explanation: