Answer:
In your case, you have 8 protons and 10 electrons. This means that the atom will carry a total 2 xx (1-) = 2- net charge. Therefore, you are dealing with an anion that carries a 2- net charge, i.e. it has two more electrons than it does protons.
Answer: the oxidation of the copper (it turning green)
Explanation:
Answer:
pH of 4
Explanation:
Upon comparing a solution with a pH value of 4 and that having a pH of 7, you will realize that it has a pH difference of 3 although the concentration of ions of hydrogen having a pH of 7 is 1000 times greater than being at a pH of 4.
The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. F = ma; a = F/m. This means that Force over the mass. In order to improve the acceleration without redesigning is that the company has to improve the force assuming that the mass is still the same.
Answer:
![V_1=9.63mL](https://tex.z-dn.net/?f=V_1%3D9.63mL)
Explanation:
Hello,
In this case, we work on a dilution process in which we can state that the moles remain the same after the dilution process. In such a way, we can write:
![n_1=n_2\\](https://tex.z-dn.net/?f=n_1%3Dn_2%5C%5C)
That in terms of molarities and volumes is:
![M_1V_1=M_2V_2](https://tex.z-dn.net/?f=M_1V_1%3DM_2V_2)
Whereas
is the initial molarity (3.00 M) of the stock solution,
the molarity of the diluted solution (0.289 M),
the aliquot of the stock (concentrated) solution and
the volume of the diluted solution (100 mL), thus, we compute
as required:
![V_1=\frac{M_2V_2}{M_1} =\frac{0.289M*100mL}{3.00M} \\\\V_1=9.63mL](https://tex.z-dn.net/?f=V_1%3D%5Cfrac%7BM_2V_2%7D%7BM_1%7D%20%3D%5Cfrac%7B0.289M%2A100mL%7D%7B3.00M%7D%20%5C%5C%5C%5CV_1%3D9.63mL)
Best regards.