Chemical Reactions
What changes do chemical reactions produce?
COLOUR CHANGE:
ENERGY CHANGE:
When the product has a different colour than the original reactans
Some chemical reactions produce or absorb energy (thermal/light energy)
- exothermic reactions produce energy
- endothermic reactions absorb energy
gas formation:
precipitate formation:
Some chemical reactions produce gas. You can feel it through bubbles, smoke, an odour
It's a solid that can be formed when we combine liquids.
chemical reactions
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Transcript
Chemical Reactions
What changes do chemical reactions produce?
COLOUR CHANGE:
ENERGY CHANGE:
When the product has a different colour than the original reactans
Some chemical reactions produce or absorb energy (thermal/light energy)
gas formation:
precipitate formation:
Some chemical reactions produce gas. You can feel it through bubbles, smoke, an odour
It's a solid that can be formed when we combine liquids.