a)
Interpretation:
The reducing agent and property of the element to act as reducing agent has to be discussed.
Concept Introduction:
Reducing agent: In a
b)
Interpretation:
The oxidizing agent and property of the element to act as oxidizing agent has to be discussed.
Concept Introduction:
Oxidizing agent: In a redox reaction, a oxidizing agent is an element or compound that gains an electron from another chemical species.
c)
Interpretation:
The given reaction only produce
Concept Introduction:
Ionization energy (IE): The ionization energy is the required to remove an electron from an atom in the gas phase.
General formula of ionization energy=
As predicted by coulomb’s law, energy must be supplied to overcome the attraction between an electron and the nucleus and to separate the electron from the atom. Thus ionization energies always have positive values. An electron father from the nucleus generally has smaller ionization energy and electron closer to the nucleus has larger ionization energy.
Increase and decrease electro negativity: The less vacancy electrons an atoms has the least it will gain of electrons. Moreover the
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Chapter 7 Solutions
Chemistry & Chemical Reactivity
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- Which of the following describes the element I?Choose all that apply. is very reactive as a metal consists of diatomic molecules in elemental form belongs to a group consisting entirely of gases reacts vigorously with alkali metals to form salts is one of the group of the least reactive elements forms a basic solution in waterarrow_forwardwhy are neutrons preferred to protons when preparing new isotopes of the lighter elements?If a salt bridge contains KNO3 as its electrolyte, which ions diffuse into solution in the cathode compartment of the galvanic cell? explain your answer.arrow_forwardWhen a nonmetal oxide reacts with water, it forms an oxoacid with the same oxidation number as the nonmetal. Give the name and formula of the oxide used to prepare each of these oxoacids: (a) hypochlorous acid; (b) chlorous acid; (c) chloric acid; (d) perchloric acid; (e) sulfuric acid; (f ) sulfurous acid; (g) nitric acid; (h) nitrous acid; (i) carbonic acid; ( j) phosphoric acid.arrow_forward
- 2)Why did the observed chemistry of thallium mislead Mendelev to place the group 13 element (Tl) in a group with Li ,Na, K ,Rb ,and Cs ?arrow_forwardDifferentiate between metal and non-metal on the basis of their chemical properties.arrow_forwardIn 1774, C. Scheele obtained a gas by reacting pyrolusite (MnO2) with sulfuric acid. The gas, which had been obtained that same year by Joseph Priestley by a different method, was an element, A. (a) What is the element isolated by Scheele and Priestley? (b) Element A combines with almost all other elements. For example, with cesium it gives a compound in which the mass percent of A is 19.39%. The element combines with hydrogen to give a compound with a mass percent of element A of 94.12%. Determine the formulas of the cesium and hydrogen compounds. (c) The compounds of cesium and hydrogen with element A react with one another. Write a balanced equation for the reaction.arrow_forward
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