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Which of the following best demonstratesthat a chemical change has taken place? The mass of the salt solution, beaker and nails decreased. The volume of the salt solution has decreased. The salt solution
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Which of the following best demonstratesthat a chemical change has taken place?

The mass of the salt solution, beaker and nails
decreased.
The volume of the salt solution has decreased.
The salt solution was discolored after a week.
The iron nail is still undissolved in the solution
after a week.

User Rajeev Shenoy
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1 Answer

4 votes

Answer:

the last one

Step-by-step explanation:

THE IRON NAIL IS STILL UNDISSOLVED IN SOLUTION AFTER A WEEK

User Kristof Rado
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