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12 Αυγ 2024 · Reaction with dilute sulfuric or hydrochloric acids. Only metals above hydrogen in the reactivity series will react with dilute acids. The more reactive the metal then the more vigorous the reaction will be.
(b) The student carries out a test to show that the solution formed when metal U reacts with dilute sulfuric acid contains sulfate ions. Use wo rds from the box to complete the sentence about this test. Each wo rd may be used once, more than once or not at all. (2)
An acid is a substance that dissociates into hydrogen ions (H +) and anions in water. A quick way to identify acids is to see if there is an H (denoting hydrogen) in front of the molecular formula of the compound. To name acids, the prefix hydro-is placed in front of the nonmetal modified to end with –ic. The state of acids is aqueous (aq ...
1 ημέρα πριν · We are able to detect anions first by using dilute hydrochloric acid, then by using concentrated sulfuric acid, and finally by using barium chloride solution if the anion has still not been identified.
A confirmatory test is formation of a brown ring through the reaction of nitrate salt solution with iron(II) sulfate and concentrated sulfuric acid. The primary test is to react a solid, potentially containing nitrate ions, with concentrated sulfuric acid to form nitric acid: 2 N a N O + H S O N a S O + 2 H N O 3 2 4 2 4 3 s l a q l
1.8.13 demonstrate knowledge and understanding of and write observations on and equations for the general reactions of hydrochloric, sulfuric and nitric acids with: metals; bases; carbonates; hydrogencarbonates; and ammonia;
Dilute hydrochloric acid, concentrated sulfuric acid, and barium chloride solutions can be used to identify unknown anions. Dilute hydrochloric acid is a primary test of carbonate, sulfite, bicarbonate, sulfide, bisulfate, and nitrite anions.
