Evaluate the statements below about the precipitation reaction that occurs when solutions of lead nitrate and sodium iodide are combined. Select all statements that are true. Sodium nitrate forms a solid and precipitates out of solution. Nitrate and sodium are spectator ions. Sodium iodide is an insoluble reactant. No reaction occurs. Solid lead iodide forms and precipitates out of solution. All reactants are soluble in water, so no precipitation reaction occurs.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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