Which changes are evidence of a chemical reaction? Drag each item to the appropriate bin. Help Reset
Question:
Which changes are evidence of a chemical reaction?
Drag each item to the appropriate bin.
Help Reset A beaker of water becomes cool to the touch upon adding a saltto it. A cloudy solution becomes clear upon adding another solution toit. Bubble formation on chalk added to acid Water condensing Bubbles forming in a shaken water bottle Evidence Not evidence |
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Part B
In a lab, silver nitrate,AgNO3, is dissolved in water until nosolid is observed in the container. Then, a solution of sodiumchloride, NaCl, is added to the container. When you combinethese aqueous solutions, there is no noticeable change intemperature; however, a solid precipitates and there is a slightchange of color.
Which statements about the lab experiment involving silvernitrate and a sodium chloride solution are true?
Drag each item to the appropriate bin.
Help Reset The color change of the solution indicates a chemical reactionoccurred. Formation of a solid indicates a chemical reaction occurred. The initial disappearance of silver nitrate in water indicates achemical reaction occurred. The lack of temperature change indicates a chemical reactiondidn't occur. A chemical reaction did occur when the solutions werecombined. A chemical reaction occurred when silver nitrate was added towater. True False |
Expert Answer:
The detailed answer for the above question is provided below For the first question A beaker of water becomes cool to the touch upon adding a salt to ... View the full answer
Auditing and Assurance services an integrated approach
ISBN: 978-0134065823
16th edition
Authors: Alvin A. Arens, Randal J. Elder, Mark S. Beasley, Chris E. Hogan
