Science 13

Question 1:

According to the information provided, the density of Solution 3 (in g/mL) in Experiment 1 is closest to:

Question 2:

Where the students live, the lowest temperature during the winter is -19 C. Based on the results of Experiment 3, which solution should road workers spray on highways to ensure that no ice forms?

Question 3:

Based on Figure 1, if the students had repeated the procedure described in Experiment 2 using a solution containing 60% NaCl by mass, the expected boiling point would have been

Question 4:

Based on Experiment 1, the density of 10mL of which of the following solutions would have been the greatest?

Question 5:

The students repeated Experiment 3 using a solution containing 70% NaCl. They did not note the formation of any ice crystals. Which of the following explanations best explains this observation?