Morgan asked in Science & MathematicsChemistry · 4 years ago

2NaNO3 + CaCl2 -> 2NaCl + Ca(NO3)2 Is balanced. How many of each ion are on either side of the equation?

# of Na ions?

# of NO3 ions?

# of Ca ions?

# of Cl ions?

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• 4 years ago

Quick Answer: A balanced equation has same number of ions on both sides, hence number of ions on RHS = number of ions on LHS. I have given the number of ions on EACH side of the equation, below:

2 Na ions

2 NO3 ions

1 Ca ion

2 Cl ion

Details:

# of Na ions?

* LHS (left hand side): 2NaNO3, where 2 is called the coefficient. This means that there are TWO NaNO3 molecules. Each NaNO3 molecule is made of ONE Na+ ion and ONE NO3- ion, that is what NaNO3 means.

So how many Na+ ions are there in 1NaNO3? Well, only ONE Na+ ion, which means 2NaNO3 should have...

2Na+ ions! Right? It s really that easy.

On the RHS: 2NaCl, so each NaCl compound is made of an Na+ ion and a Cl- ion. So 2NaCl obviously has 2Na+ ions. So, we have TWO Na ions on the RHS and 2Na ions on the LHS, hence why the Na ions are balanced.

# of NO3 ions?

* Same thing again...LHS has TWO NO3- ions.

And RHS has Ca(NO3)2. This means ONE Ca+ ion is attached to TWO NO3- ions. The 2 is not a coefficient here, it is a SUBSCRIPT (a little two next to the NO3- ion, which ONLY applies to the NO3 ion).

RHS has TWO NO3- ions.

# of Ca ions?

LHS: ONE Ca+ ion and two Cl ions.

RHS: ONE Ca+ ion (ofcourse because the equation is balanced, so you must have same number of ions on each side!) :P

# of Cl ions?

RHS = LHS = TWO Cl- ions.

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• 4 years ago

On the left side there are

Na= 2

NO3=2

Ca=1

Cl=2

On the right there are

Na= 2

Cl=2

Ca=1

NO3=2