A mixture of sodium salts is dissolved in distilled water. By adding excess barium nitrate followed by silver nitrate, respectively, two white precipitates are formed. So, it would be expected that the sodium salts are .

Hydrochloric acid is more stable than the acids from which the following anions are derived except .

Consider the following pairs of salts:

A) NaBr and Na₃PO₄

B) KI and NaNO₃

C) Na₂CO₃ and NaBr

D) Na₂SO₄ and Na₂SO₃

Dilute hydrochloric acid can be used to differentiate between .

The addition of sulfuric acid to two salts leads to the evolution of two gases: A, which forms white fumes when exposed to a glass rod wetted by ammonia solution, and B, which is a reddish-brown gas. The two gases are ...................... and ..............................  respectively.

Which of the following is correct about the silver halides AgCl, AgBr ,and AgI ?

A clear solution contains a mixture of Na₃PO₄ and Na₂SO₄.Phosphate and sulfate anions can be separated from each other by the addition of .

A mixture of two white salts was divided into equal amounts in two test tubes A and B.

The addition of dilute HCl to test tube A gives effervescence, and the addition of concentrated H₂SO₄ to test tube B gives both effervescence and violet fumes, which turn paper wetted with starch into blue.

The chemical formulae of the two salts would be ............ and ............. .

Sodium chloride and sodium phosphate cannot be distinguished by .

Four test tubes (A), (B), (C), and (D) contain four different solutions of inorganic salts. White precipitates are formed in each one except (D) by addition of BaCl2.So, the chemical substances in (A), (B), (C), and (D) may be  respectively.

The addition of silver nitrate to two salts X and Y leads to the formation of different grades of yellow precipitate. The one that is formed with salt X dissolves in excess of the ammonia solution, while the one formed with Y is not affected by the excess ammonia. What are salts X and Y?

The addition of dilute hydrochloric acid to three separate test tubes A, B, and C results in the following observations:

In test tube A, there was effervescence.

In test tube B, there was a white precipitate.

In test tube C, no gas evolved or precipitate formed.

Then test tubes A, B, and C may contain ......................................................  respectively.

A solution is formed by mixing two salts, A and B.

By adding an excess amount of H₂SO₄,the compound A is completely reacted and evaporated as a colorless gas that is detected by forming white fumes with a glass rod wetted with NH₄OH.Furthermore, with the addition of BaCl₂ to the rest of the solution that contains the unreacted B, a white precipitate insoluble in dilute HCl was formed.

From the above, it can be expected that the chemical formulae of A and B are  respectively.

The scientific basis on which the acid radicals in the first two groups (dilute HCl group and concentrated HSO24 group) are identified is the addition of dilute HCl or concentrated HSO24 as a ..................... acid than the acids from which the group anions are derived, so it replaces the ................. acids, which decompose in the form of gases that can be detected by using the suitable reagents.

All of the following carbonate salts are soluble in water except .

Solids of sodium bromide and silver bromide can be identified without the use of a chemical reagent by .................. .

From the following choices, determine which steps are considered mistakes that should be avoided or need to be altered in the brown ring experiment to succeed?

1. Using a little amount of a concentrated solution of iron(II) sulfate which was already prepared the day before in a test tube

2. Adding a little amount of a nitrate salt solution directly to the test tube of iron(II) sulfate

3. Adding some drops of concentrated sulfuric acid directly to the reaction mixture

4. Heating the final mixture well till the brown ring appears

chemical analysis can be used to determine the amount of cholesterol present in a person. in which scientific field is this analysis important ?

which of the following terms best describes the identification of an unknown substance and the determination of its chemical composition  ?

one of the following reactions can't take place in normal conditions

Different gases has the following properties :

a. has irritating small and can be oxidized using oxidizing agents.

b. colorless gas easily oxidized in air 

c. bad smell has low boiling point 

d. dissolves in water , forms white ppt . on reaction with calcium hydroxide 

so which of the following choices is true

what color change is seen when nitrogen monoxide gas is passed through a solution of potassium permanganate ?

when testing for the carbonate anion using dilute hydrochloric acid , through which of the following solutions is the gas produced commonly passed ?

in adding calcium chloride solution . to salt solution of (X) and (Y) on cold , a white ppt . is formed with the salt solution (X) while no ppt . is formed with salt solution (Y) . so the two salts (X) and (Y) are .................. .