Question

4. Mr HNO3, Ba(OH)2 NaHCO3 Al(OH)3​

Answer 1

Ответ:

3

2

4

это правильно я это проходил

Answer 2

The given sequence of chemical formulas corresponds to the following compounds:

1. HNO3: Nitric acid
2. Ba(OH)2: Barium hydroxide
3. NaHCO3: Sodium bicarbonate (also known as baking soda)
4. Al(OH)3: Aluminum hydroxide

Here's some additional information about each compound:

1. HNO3 (Nitric acid): It is a strong acid commonly used in laboratories and industries. It is highly corrosive and can be dangerous if mishandled. Nitric acid is often used in the production of fertilizers, explosives, and dyes.

2. Ba(OH)2 (Barium hydroxide): It is an inorganic compound composed of the elements barium (Ba) and hydroxide (OH). It is a strong base and is often used in laboratories as a reagent. Barium hydroxide is also used in the production of some chemicals and as a component in certain types of cement.

3. NaHCO3 (Sodium bicarbonate): It is a white crystalline compound commonly known as baking soda. Sodium bicarbonate is widely used in baking as a leavening agent, as it releases carbon dioxide when heated. It is also used as an antacid to relieve heartburn and as a cleaning agent.

4. Al(OH)3 (Aluminum hydroxide): It is a white solid compound composed of aluminum (Al) and hydroxide (OH). Aluminum hydroxide is used as an antacid to treat conditions such as acid reflux and stomach ulcers. It can also be found in certain medications and as an ingredient in some cosmetics.

Remember to handle these compounds with caution and follow appropriate safety measures when working with them.