Reaction in a Beaker
Reaction in a Beaker
Part A: definitions:
1. Endothermic Reaction:
2. Exothermic Reaction:
3. Four Warning Signs of a chemical reaction: _____________ ____________ _____________ ____________
Part B: Observations of reactants before mixing
Observations Before:
Sodium bicarbonate: ________________________________________________
Calcium Chloride: __________________________________________________
Water with indicator: ________________________________________________
Observations During:
|Procedure (what you mixed) |Warning Signs/ observations |Endothermic / Exothermic and why |
|Calcium Chloride and water | | |
|Sodium bicarbonate and water | | |
|Sodium bicarbonate, Calcium | | |
|Chloride and water | | |
|Acetic acid, indicator, and | | |
|sodium bicarbonate | | |
Part C QUESTIONS: Summarize your observations with a short paragraph, including answers to these questions •What do you think happened in each beaker? Explain. •What evidence of a chemical reaction did you observe in the beakers
•Which reactions were endothermic? •Which reactions were exothermic?
Start the paragraph with a topic sentence!!
Reaction in a Beaker
Part A: definitions:
4. Endothermic Reaction:
5. Exothermic Reaction:
6. Four Warning Signs of a chemical reaction: _____________ ____________ _____________ ____________
Part B: Observations of reactants before mixing
Observations Before:
Sodium bicarbonate: ________________________________________________
Calcium Chloride: __________________________________________________
Water with indicator: ________________________________________________
Observations During:
|Procedure (what you mixed) |Warning Signs/ observations |Endothermic / Exothermic and why |
|Calcium Chloride and water | | |
|Sodium bicarbonate and water | | |
|Sodium bicarbonate, Calcium | | |
|Chloride and water | | |
|Acetic acid, indicator, and | | |
|sodium bicarbonate | | |
Part C QUESTIONS: Summarize your observations with a short paragraph, including answers to these questions •What do you think happened in each beaker? Explain. •What evidence of a chemical reaction did you observe in the beakers
•Which reactions were endothermic? •Which reactions were exothermic?
Start the paragraph with a topic sentence!!
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