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When potassium iodide liquid is poured into lead nitrate solution (both clear solutions), a bright yellow solid, lead iodide, forms in a potassium nitrate solution. What are the signs that this is a chemical reaction? Check all that apply.

Heat is produced.
Light is produced.
Heat is absorbed.
Bubbles appear.
A precipitate forms.
The color changes.

Respuesta :

Let's see the chemical equation

[tex]\\ \sf\longmapsto KI+Pb(NO_3)_2\longrightarrow PbI_2+KNO_3+\Delta H[/tex]

  • Heat is produced (Exothermic)
  • Light is produced
  • A precipitate forms(Yellow solid)
  • Color changes