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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.
A precipitate forms.
The color changes.
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Harvey mixes two liquids. Which observation of the new mixture most likely indicates a precipitate is forming?
Pedro wants to create a chemical reaction between oil and water. He adds oil to a beaker of water and notices that the liquids do not mix. He then shakes the beaker and the drops of oil become suspended through the water for a few moments before returning to their separate layers.
Did Pedro succeed in creating a chemical change?
this is middle school work!!! holy cow its like college work
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1 one is color changes and and a precipitate forms
2 one isAn ionic solution is when the ions of a compound have dissociated in an aqueous solution. A reaction happens when you mix two aqueous solutions. This is when you find out if a precipitate will form or not. A precipitate forms if the product of the reaction of the ions is insoluble in water.
3 Is No because Reactions occur when two or more molecules interact and the molecules change. Bonds between atoms are broken and created to form new molecules and the oil and water Did not mix at al