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CPChem-C1 Formative Test-3 - CP Chem-Chapter 1 Formative...

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CP Chem-Chapter 1 Formative Test – DO NOT WRITE ON THIS TEST . TEST # Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which is a qualitative data? a. color b. mass c. time d. length 2. Which is a quantitative measurement? 3. Which of the following is quantitative measurement? 4. Which of the following is qualitative data? Base your answers to questions 5 to 9 on the following experiment: A student conducts an experiment to determine the effect of salt on the temperature of boiling water. The results are shown below: Sample (#) Amount of Salt (g) Boiling Temperature (°C) 1 0.000 100.0 2 2.000 102.3 3 5.000 104.8 4 10.000 107.5 5. Which is the independent variable in this experiment? See the above table. a. Amount of salt added b. Volume of water c. Boiling temperature d. Time required for water to boil 6. Which is the dependent variable in this experiment? See the above table. 7. Which is a value that should remain constant for all samples in this experiment? See the above table. 8. Which is the control in this experiment? See the above table 9. Which is a reasonable hypothesis for this experiment? See the above table. a. If salt is added to water, the water will boil at a higher temperature. b. Salt makes water boil. c. If water is boiling, it must have salt added to it. d. If salt is added to water, the water will get cloudy. 10. Which precaution should you take when you see this symbol?
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Short Answer Question : 1. The figure shows a student mixing two chemicals. Is she following safe laboratory practices? Why or why not? Support your answer with specific details by referring to the figure.
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