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Chemistry

2 answers:

vfiekz [6]3 years ago

8 0

Answer:

Explanation:

You can tell when a chemical change occurs if a gas is produced (bubbles), an odor is produced, if there is a color change, or if the surroundings get hotter or colder.

emmainna [20.7K]3 years ago

7 0

Answer:

Your answer will be (D).

Hope this helps!

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Measure and record the masses of all metal strips you set out in front of the test tubes

jeka94

Magnesium ribbon dissolves in zinc nitrate and copper nitrate solutions.

Even though the question is incomplete and refers to your practical work, however, I will try to help you as much as I can.

Metals dissolves in solutions of other metals that are lower than them in the electrochemical series. Hence, copper strip will show no change in magnesium nitrate or zinc nitrate solution. A zinc strip will not show any change in magnesium nitrate or zinc nitrate.

However, a magnesium ribbon will dissolve very quickly in zinc nitrate and copper nitrate solutions.

Learn more: brainly.com/question/14396802

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