Question 3 (0.5 points) Consider the reaction in Step A. Based on your observations, was energy absorbed or was energy r
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Step B. CaCl2 + H2O Question 5 (1 point) Record the temperature of the water in your test tube (measured to the nearest 0.5 °C) both before and after adding the calcium chloride to the water. Temperature BEFORE: Temperature AFTER: Question 6 (2 points) Record your observations for the reaction in Part B. Use complete sentences. Be sure to review the lab instructions and Pre-Lab Video to ensure you are writing a complete observation, and NOT an interpretation or a conclusion. Keep in mind that there is usually more than one part to a complete observation. Paragraph v BI UA EE PII 0⁰ + v www AV
Question 7 (0.5 points) Consider the reaction in Step B. Based on your observations, was energy absorbed or was energy released? O Energy was absorbed. Energy was released. Question 8 (0.5 points) Consider the reaction in Step B. Based on your observations, was this reaction endothermic or exothermic? O endothermic exothermic
Step C. NaHCO3 + H2O (Note: the ingredients in an Alka-Seltzer tablet include NaHCO3.) Question 9 (1 point) Record the temperature of the water in your test tube (measured to the nearest 0.5 °C) both before and after adding the Alka Seltzer to the water. Temperature BEFORE: Temperature AFTER: Question 10 (2 points) Record your observations for the reaction in Part C. Use complete sentences. Be sure to review the lab instructions and Pre-Lab Video to ensure you are writing a complete observation, and NOT an interpretation or a conclusion. Keep in mind that there is usually more than one part to a complete observation. Paragraph V BI UA V PRI ON + v www
Question 11 (0.5 points) Consider the reaction in Step C. Based on your observations, was energy absorbed or was energy released? O Energy was absorbed. Energy was released. Question 12 (0.5 points) Consider the reaction in Step C. Based on your observations, was this reaction endothermic or exothermic? O endothermic O exothermic
Step D. CaCl2 + NaHCO3 Step D consists of mixing the contents of your test tube from Step B with the contents of your test tube from Step C. Question 13 (2 points) Record your observations for the reaction in Part D. Use complete sentences. Be sure to review the lab instructions and Pre-Lab Video to ensure you are writing a complete observation, and NOT an interpretation or a conclusion. Keep in mind that there is usually more than one part to a complete observation. Paragraph V B I UAE E PHI OB + v ... 30 Add a File Record Audio
Step A. Citric Acid + H2O (Note: the Pixy Stix contents include citric acid.) Question 1 (1 point) Record the temperature of the water in your test tube (measured to the nearest 0.5 °C) both before and after adding the citric acid to the water. Temperature BEFORE: A Temperature AFTER: Question 2 (2 points) Record your observations for the reaction in Part A. Use complete sentences. Be sure to review the lab instructions and Pre-Lab Video to ensure you are writing a complete observation, and NOT an interpretation or a conclusion. Keep in mind that there is usually more than one part to a complete observation. Paragraph BI UA ALI V 30 OF