Chemical Reactions and Precipitation

The video tutorial explains the chemical reaction between lead and iron(II) sulfate, focusing on the states of matter, solubility rules, and the formation of a precipitate. It also covers the balancing of the chemical equation, highlighting the stoichiometry involved. The tutorial concludes with a summary of the reaction and its outcomes.

What is the state of lead in the initial chemical equation?

• Gas

• Liquid

• Solid

• Aqueous

Which of the following is generally soluble according to the solubility rules discussed?

• Sulfates

• Lead metal

• Iron metal

• Lead sulfate

What happens to lead sulfate in the reaction?

• It dissolves in water

• It forms a gas

• It remains unchanged

• It forms a precipitate

What is the result when lead metal and iron sulfate solution are mixed?

• The solution becomes acidic

• A precipitate forms

• A gas is released

• No reaction occurs

What is left in the solution after the reaction completes?

• Lead metal

• Sulfate ions

• Water

• Iron metal

How many lead atoms are present on each side of the balanced equation?

• One

• Two

• Four

• Three

What is the coefficient of iron in the balanced equation?

• Zero

• One

• Three

• Two

Which ion is counted as a single entity on both sides of the equation?

• Lead ion

• Iron ion

• Sulfate ion

• Hydroxide ion

What is the convention for writing coefficients in a balanced chemical equation?

• Write only if less than one

• Always write them

• Never write them

• Write only if greater than one

What is the final product that precipitates out in the reaction?

• Lead metal

• Iron sulfate

• Lead sulfate

• Iron metal