Concept explainers
(a)
Interpretation:
The hydride
Concept Introduction:
Saline hydrides:
The elements present in group 1 and 2 form ionic compounds with hydrogen in which, the hydrogen is present as hydride ion
Molecular hydrides: Nonmetals form covalent molecular hydride that comprises of discrete molecules. These compounds are volatile and are bronsted acids. These are mostly formed by elements of p-blocks.
Metallic hydrides: Metallic hydrides are black, powdery, electrically conducting solids formed by heating certain elements of the d-block metals in hydrogen. Metallic hydrides releases hydrogen gas when they are treated or heated with an acid.
(b)
Interpretation:
The hydride
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The hydride
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
The hydride
Concept Introduction:
Refer to part (a).
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Chemical Principles: The Quest for Insight
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- (a) One of the alkali metals reacts with oxygen to form a solidwhite substance. When this substance is dissolved in water,the solution gives a positive test for hydrogen peroxide, H2O2.When the solution is tested in a burner flame, a lilac-purpleflame is produced. What is the likely identity of the metal?(b) Write a balanced chemical equation for the reaction ofthe white substance with water.arrow_forwardComplete and balance the following acid-base equations:(a) A solution of HClO4 is added to a solution of LiOH.(b) Aqueous H2SO4 reacts with NaOH.(c) Ba(OH)2 reacts with HF gas.arrow_forwardEach of the following properties shows a regular trend inGroup 1A(1). Predict whether each increases or decreases downthe group: (a) density; (b) ionic size; (c) E−E bond energy; (d) IE₁; (e) magnitude of ΔH(hydr) of E⁺ion.arrow_forward
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