...0.............I..V.-II..............II...V.-II...........II..-II.......I...-II
3Cu(s) + 8HNO3 ---> 3Cu(NO3)2 + 2NO + 4H2O
V.....................II
N + 3e -----> N >> reduction
HNO3 - oxidizing agent
..0...........II
Cu ----> Cu + 2e >> oxidation
Cu - reducing agent
Answer:
Explanation:
The Proton number for flourine will be 9
Then the mass number which will be protons+ neutrons will be 19
Argon which has a mass number of 40
to find the proton number of argon it will be 40-22=18
then the electron number will just be the same as proton number
then calcium the proton will be the same as electron so it will be 20
then neutrons will be mass number -proton number
which is 21
hope this helped
and pretty cool you use a mac
<span>a. solute. The solute is the substance usually dissolved in the solvent to form the solution.</span>
The volume occupied by the sample is 8.4 cm³
<h3>What is density?</h3>
The density is the ratio of mass of the object to its volume.
Given is the mass m =14.7 g and the density is 1.75 g/cm³, then the volume will be
ρ = m/ V
V =m /ρ
Substitute the values, we get
V = 14.7 /1.75
V = 8.4 cm³
Thus, the volume of the sample is 8.4 cm³.
Learn more about density.
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They are asking about the molecule change!
