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Lab 5-8

CHEM LAB

QuestionAnswer
Which of the following statements best explains the difference between a chemical change and a physical change? a chemical change results in the formation of new substances, while a physical change does not change the substance's identity.
Which observation can be linked to the presence of carbon dioxide during a chemical reaction? a lit splint goes out when inserted into a container
When conducting experiments involving chemical reactions, what is the purpose of balancing skeleton reactions? to verify the chemical equations comply with the Law of Conservation of Matter
Which precaution is crucial when heating a sample in a test tube using a Bunsen burner? ensure the opening of the test tube is not facing yourself or others
What is the primary reason for avoiding direct eye contact with the bright light when magnesium ribbon is ignited? the intense light can cause temporary blindness
Created by: user-1928176
 

 



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