Answer:
It really depends on whether you are trying to eat healthy but if you excersize then you should be able to burn off the calories from the soda.
The symbol for Chromium is Cr
Answer:
The difference between an atom and an ion has to do with net electrical charge. An ion is a particle or collection of particles with a net positive or negative charge. ... A stable atom contains the same number of electrons as protons and no net charge. When electrons are added or removed, the stable atom becomes an ion.Apr 12, 2015
Explanation:
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Answer:
The answer to your question is:
a) 0.069 moles of Iron
b) 0.052 moles of Oxygen
Explanation:
Data
mass Iron = 3.86 g
moles = ?
Atomic weight Fe = 56 g
Process
a) Solve it using a rule of three
56 g of Fe ---------------- 1 mol
3.86 g ---------------------- x
x = (3.86 x 1) / 56
x = 0.069 moles of Iron
b)
Balanced Equation
4Fe + 3O₂ ⇒ 2Fe₂O₃
Solve it using a rule of three
4 moles of Fe ----------------- 3 moles of O₂
0.069 moles of Fe --------- x
x = (0.069 x 3) / 4
x = 0.052 moles of Oxygen