Tectonic plate shifting...
The moles of each element found in a 5.00 g nickel coin is calculated as below
moles =mass/molar mass
calculate the mass of each element =% composition of element/100 x total mass of nickel
Mn = 9/100 x5 = 0.45g
Cu=56/100 x5= 2.8 g
Ag= 35/100x5= 1.75 g
moles of each element is therefore=
Mn = 0.45g/54.94 = 8.19 x10^-3 moles
Ag=1.75g/107.87 g/mol = 0.0162 moles
Cu = 2.8 g/63.5 g/mol=0.0441 moles
Cl-
(The - needs to be at the top by the way)
This shows it has gained an electron to form a stable ion which gives it a negative charge (as there are now more electrons then protons)
:)
The chemical formula is CaC2
Answer:
16
Explanation:
you can line up the fareinheit and celsius and see that the celsius is 16
