A student is measuring the boiling point of a salt and water mixture. He takes one temperature measurement of 105°C. Which is the best way to ensure the results are valid?
repeat the investigation change the volume of water add more salt to the mixture do the investigation without salt
Question: A student is measuring the boiling point of a salt and water mixture. He takes one temperature measurement of 105°C. Which is the best way to ensure the results are valid?
A. repeat the investigation
B. change the volume of water
C. add more salt to the mixture
D. do the investigation without salt
Answer: