Question

Как распознать na2co3 и nano3?

Answer 1

Ответ: добавив Ba(OH)2

Объяснение:

Na2CO3 + Ba(OH)2 = BaCO3 (осадок) + 2NaOH,

а с NaNO3 реакция не пойдет, т.к. нет ни осадка, ни воды, ни газа.

Answer 2

How to distinguish Na2CO3 and NaNO3?

To distinguish between Na2CO3 (sodium carbonate) and NaNO3 (sodium nitrate), you can perform a simple chemical test using hydrochloric acid (HCl). Here's how you can do it:

1. Take a small amount of the unknown substance and place it in a test tube. 2. Add a few drops of hydrochloric acid (HCl) to the test tube. 3. Observe the reaction that occurs.

If the substance is Na2CO3 (sodium carbonate), you will see effervescence or the release of gas bubbles. This is because sodium carbonate reacts with hydrochloric acid to produce carbon dioxide gas (CO2), water (H2O), and sodium chloride (NaCl). The balanced chemical equation for this reaction is:

Na2CO3 + 2HCl -> 2NaCl + H2O + CO2

On the other hand, if the substance is NaNO3 (sodium nitrate), you will not observe any effervescence or gas bubbles. Sodium nitrate does not react with hydrochloric acid in the same way as sodium carbonate.

It's important to note that this test is specific to distinguishing between sodium carbonate and sodium nitrate. If you need to identify other substances or confirm the results, additional tests or analysis may be required.

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