How do you balance lead nitrate and sodium iodide?

How do you balance lead nitrate and sodium iodide?

Lead II nitrate and sodium iodide react to form sodium nitrate and lead II iodide. The balanced chemical equation is Pb(NO3)2 +2NaI —> 2NaNO3 + PbI2.

What type of reaction is lead nitrate and sodium iodide?

Precipitation reaction of sodium iodide and lead(II) nitrate. Pale yellow sodium iodide solution is added to colorless lead(II) nitrate solution.

What is a spectator ion examples?

Examples of Spectator Ion Reactions The hydrogen and hydroxide ions react to form water, but the sodium and chlorine ions stay in solution unchanged. They are spectator ions because they did not take part in the chemical reaction.

How do you identify lead ii nitrate?

It commonly occurs as a colourless crystal or white powder and, unlike most other lead(II) salts, is soluble in water….Lead(II) nitrate.

Chemical formula Pb(NO3)2
Molar mass 331.2 g/mol
Appearance colorless or white
Density 4.53 g/cm3

How does sodium iodide detect lead?

When a clear colorless solution of lead nitrate (Pb(NO3)2) is added to a clear colorless solution of sodium iodide (NaI), a yellow precipitate of lead iodide (PbI2) appears.

Which represents a balanced chemical equation?

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products. In other words, the mass and the charge are balanced on both sides of the reaction.

What are the spectator ions in the reaction of sodium chloride with silver nitrate?

FIGURE 11.5 (a) When a solution of silver nitrate is added to a solution of sodium chloride, the silver ions combine with the chloride ions to form a precipitate of silver chloride. The sodium and the nitrate ions are nonparticipating spectator ions.

Is sodium a spectator ion?

A spectator ion is an ion that does not take part in the chemical reaction and is found in solution both before and after the reaction. In the above reaction, the sodium ion and the nitrate ion are both spectator ions.

Which ions are always spectator?

According to the scalability rules, any ion that always makes an ionic compound soluble will always serve as a spectator ion for the first choices, chloride chloride is usually soluble, but there are some exceptions, such as lead to and silver.

What happens when sodium nitrate is mixed with lead?

When these two solutions are mixed, the lead (II) cations, Pb2+, and the iodide anions, I−, will bind to each other and form lead (II) iodide, an insoluble ionic compound. The other product of the reaction is aqueous sodium nitrate, NaNO3, which will exist as ions in solution.

Why are sodium and nitrate ions called spectator ions?

If we compare the solutions before and after the reaction, sodium and nitrate ions are present in both solutions. They do not undergo any chemical change at all. These ions are called spectator ions since they don’t participate in the chemical reaction at all (they just “watch”).

Can a chemical equation be written without spectator ions?

A chemical equation written without the spectator ions is called a net ionic equation. A net ionic equation includes only those ions or compounds that undergo chemical change.