Question

Pls answer this question​

Answer 1

Answer:

Chemical, base in nature.

Explanation:

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Answer 2

Answer:

When a copper vessel is exposed to moist air for long, it acquires a dull green coating. The green material is a mixture of copper hydroxide (Cu(OH) 2 ) and copper carbonate (CuCO 3 ). The following is the reaction 2Cu+H 2 O+CO 2 +O 2 →Cu (OH) 2 + CuCO 3

Now recall the activity of burning magnesium ribbon. The ash obtained on burning magnesium ribbon is dissolved in water and tested for its acidic/basic nature.

Is the solution acidic or basic? How do you ascertain this?

You must have observed that the red litmus turns blue. So, oxide of magnesium is also basic in nature. In general, metallic oxides are basic in nature.

Explanation:

Basic is your answer