Which of the following are spectator ions in the reaction shown?

NO₃⁻(aq) and Na⁺ (aq) are spectator ions.

Explanation:

Chemical equation:

AgNO₃(aq) + NaCl(aq)  → AgCl(s) + NaNO₃(aq)

Balanced Chemical equation:

AgNO₃(aq) + NaCl(aq)  → AgCl(s) + NaNO₃(aq)

Ionic equation:

Ag⁺(aq) + NO₃⁻(aq) + Na⁺(aq) + Cl⁻(aq)  → AgCl(s) + Na⁺(aq) + NO₃⁻(aq)

Net ionic equation:

Ag⁺(aq) + Cl⁻(aq)  → AgCl(s)

The NO₃⁻(aq) and Na⁺ (aq) are spectator ions that's why these are not written in net ionic equation. The AgCl can not be splitted into ions because it is present in solid form.

Spectator ions:

These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.  

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.