indications of a chemical reaction. what do we look for to determine if a chemical reaction is...
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Indications of a Chemical Reaction
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What do we look for to determine if a chemical reaction is occurring?
![Page 3: Indications of a Chemical Reaction. What do we look for to determine if a chemical reaction is occurring?](https://reader036.vdocuments.mx/reader036/viewer/2022062518/56649edd5503460f94bed9f5/html5/thumbnails/3.jpg)
What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light– The burning of wood or coal
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light– The burning of wood or coal– The burning of magnesium
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light– The burning of wood or coal– The burning of magnesium– This is not always an indication of a chemical
reaction.
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light– The burning of wood or coal– The burning of magnesium– This is not always an indication of a chemical
reaction.• Phosphorescence or fluorescence produce light
without a chemical reaction.
![Page 8: Indications of a Chemical Reaction. What do we look for to determine if a chemical reaction is occurring?](https://reader036.vdocuments.mx/reader036/viewer/2022062518/56649edd5503460f94bed9f5/html5/thumbnails/8.jpg)
What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light– The burning of wood or coal– The burning of magnesium– This is not always an indication of a chemical
reaction.• Phosphorescence or fluorescence produce light
without a chemical reaction.• Compression of gases produce heat without a
chemical reaction.
![Page 9: Indications of a Chemical Reaction. What do we look for to determine if a chemical reaction is occurring?](https://reader036.vdocuments.mx/reader036/viewer/2022062518/56649edd5503460f94bed9f5/html5/thumbnails/9.jpg)
What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light
![Page 10: Indications of a Chemical Reaction. What do we look for to determine if a chemical reaction is occurring?](https://reader036.vdocuments.mx/reader036/viewer/2022062518/56649edd5503460f94bed9f5/html5/thumbnails/10.jpg)
What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas
![Page 11: Indications of a Chemical Reaction. What do we look for to determine if a chemical reaction is occurring?](https://reader036.vdocuments.mx/reader036/viewer/2022062518/56649edd5503460f94bed9f5/html5/thumbnails/11.jpg)
What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas
– Gas bubbles when two things are mixed
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas
– Gas bubbles when two things are mixed• Zinc and acid
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas
– Gas bubbles when two things are mixed• Zinc and acid• Baking soda and vinegar
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate
![Page 16: Indications of a Chemical Reaction. What do we look for to determine if a chemical reaction is occurring?](https://reader036.vdocuments.mx/reader036/viewer/2022062518/56649edd5503460f94bed9f5/html5/thumbnails/16.jpg)
What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate
– A solid formed when mixing two things
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate
– A solid formed when mixing two things• Zinc sulfate and barium nitrate
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate
– A solid formed when mixing two things• Zinc sulfate and barium nitrate• Potassium iodide and lead nitrate
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate
![Page 20: Indications of a Chemical Reaction. What do we look for to determine if a chemical reaction is occurring?](https://reader036.vdocuments.mx/reader036/viewer/2022062518/56649edd5503460f94bed9f5/html5/thumbnails/20.jpg)
What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate• Color change
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate• Color change
– Rusting causes iron to go from silvery to red
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate• Color change
![Page 23: Indications of a Chemical Reaction. What do we look for to determine if a chemical reaction is occurring?](https://reader036.vdocuments.mx/reader036/viewer/2022062518/56649edd5503460f94bed9f5/html5/thumbnails/23.jpg)
What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate• Color change• Formation of water
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate• Color change• Formation of water
– Burning hydrocarbons produce carbon dioxide and water.
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate• Color change• Formation of water
– Burning hydrocarbons produce carbon dioxide and water.
– Combining acids and bases form water.
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate• Color change• Formation of water
![Page 27: Indications of a Chemical Reaction. What do we look for to determine if a chemical reaction is occurring?](https://reader036.vdocuments.mx/reader036/viewer/2022062518/56649edd5503460f94bed9f5/html5/thumbnails/27.jpg)
What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate• Color change• Formation of water
– The formation of water does not necessarily indicate a chemical reaction.
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate• Color change• Formation of water
– The formation of water does not necessarily indicate a chemical reaction.
• Water condenses on a cold glass.
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What do we look for to determine if a chemical reaction is occurring?
• Evolution of heat and light• Production of a gas• Formation of a precipitate• Color change• Formation of water