Determine AH for: 3H2(g) + O3(g) → 3H20(1) by using the reactions below..

Q: what is the difference between fe(s) and fe3+ at the atomic level?

A: When the neutral atom losses electron then it forms cation.  When the neutral atom accepts electron…

Q: Which of the following electron distributions will be expected for [Rh(en)3]3+? Rhº: [Kr]5s24d7

A: ∙Firstly find out the oxidation state of    Rh in the given complex       Rhen33+As   en  is neutral…

Q: What is the basis in assigning a central atom?

A: The basis on which central atom is assigned has to be given.

Q: Which is the most stable electron configuration for the iron(III) ion, Fe3+? (A) [Ar]…

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Q: Bromine is used in the manufacture of disinfectant products, it has a very strong oxidizing…

A:

Q: Group the electronic configurations of neutral elements in sets according to those you would expect…

A: The chemical properties of elements depends on number of electrons present in valence shell…

Q: Among the oxides of Na2O, MgO, Al2O3 the least basic oxide is Al2O3 True or false

A: The oxides of the metals are basic in nature. These oxides react with water to form metal hydroxide.…

Q: Which of the following species has the smallest ionic radius? A) s2- B CI- C) A13+ D Na+ E) Mg2+

A: All the elements given in the option fall in the same period. S2- and Cl- ions gain electron to…

Q: Write the electron configurations for (a) Ca2+, (b) Co3+, and (c) S2-.

A: Calcium loss 2 electrons and cobalt loss 3 electrons and sulphur gains 2 electrons

Q: What is the valence electron configu.ration for Group SA (lS) elements?Metallic character increases…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Provide real-life examples of alkaline earth metals and alkali and the ways in which they are used…

A: Alkaline earth metals are present in group-2 . They are s-block elements.

Q: In group 15 elements, there is considerable increase in covalent radius from N to P but small…

A: ANSWER

Q: Describe as oxides, peroxides or super-oxides the binary of the following oxygen compounds (answers…

A: Given :- (a) BaO2 (b) HNO3 (γ) H2S (δ) LiOH (ε) P4O6 (f) P4O10 (g) SO3 (h) RbO2 (i) SrO (i) ZnSO4…

Q: Define the term Phosphorus Halides?

A: Phosphorous(P) means the element phosphorous(P) and halides means halogens [such as Fluorine(F),…

Q: im not too sure how to fill this out

A: There are four sets of quantum number for a particular electron in an atom :-  principle quantum…

Q: Which Group 5A(15) elements form trihalides? Pentahalides? Explai

A: ANSWER

Q: Give electron configurations for the Hg2+.

A: The electronic configuration for Hg2+ has to be given.

Q: Explain each of the following observations: The halogens decrease in oxidizing power in the order F2…

A: Introduction :  Oxidising power of halogens decreases down the group .

Q: Which of the following have the largest first ionization energy, IE,? O B O Ga O Br O i

A: Ionisation energy is defined as the energy required to remove electron from the gaseous form of the…

Q: How are measurements of paramagnetism used to support electron configurations derived…

A: How are measurements of paramagnetism used to support electron configurations derived…

Q: Arrange the following groups of atoms in onder 'of increasing sine (Enter mutiple answers as a…

A: The size of an atom is the distance between the center of nucleus of an atom and it's outermost…

Q: What is the Nobel gas electron configuration by filing order and spdf of 3 elements used to give…

A: Answer -  Nobel gas  - The noble gases make up a class of chemical elements with similar properties;…

Q: What is the periodic trend in ionic size for the cations of these alkaline earth elements: Mg2+,…

A: Atomic size tends to decreases as we move down group. Cations have lesser number of electrons than…

Q: Give the electron configuration and draw the orbital diagram for Co3+.  How many unpaired electrons…

A: The electronic configuration of a metal or its ion is the way of arranging the electrons in the…

Q: What is the electron configuration of Al 3* ?

A: Given :- ionic symbol = Al3+  To determine :- its electron configuration

Q: Make a schematic diagram for group 3 cations

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Q: Which of the following species has the 'second smallest' radius:  Ti2+, V3+, K+, Br-, Cl-

A: Atomic radius: The distance between the nucleus and the outermost electron is known as the atomic…

Q: What can you conclude about how easy it is to remove electrons from iodine in Kl versus how easy it…

A: It is easy to remove electron from Iodine in KI than oxygen in H2O.

Q: The electron configuration of (vanadium) O [Ar] 4s1 3d4 O [Ar] 3d5 [Ar] 4s2 3d3 O [Ar] 3d3 4s2

A:

Q: How many electrons occur in the valence level of Group 3A (13) and 3B (3) elements? Why are they…

A: Group 13 (IIIA) consists of boron, aluminum, gallium, indium, and thallium.  All elements in this…

Q: Write the electronic configuration of 3 Li and 26Fe and explain the possible valency they can…

A: filling of electron in orbital of element follows pauli exclusion principles.

Q: Please arrange S²², CI", Se², and Br¯ in order of increasing ionic radius.

A: Interpretation -  To arrange the S2- , Cl- , Se2-  and  Br-  in order of increasing ionic radius -…

Q: If the molecule XY, which has an enthalpy of ionization of 1,500 kJ/mol as per the reaction below,…

A: Given the ionization enthalpy of the molecule, XY = 1500 kJ/mol First, we have to convert the…

Q: Consider a hypothetical ionic compound AB (comprised of A* and B" ions). Given the following…

A: The enthalpy change during the formation of one mole of ionic crystal from one mole of gaseous…

Q: in Example 4. Why do the transition elements exhibit higher enthalpies of atomisation? (N, R ne

A:

Q: Please provide an explanation for the relatively high boiling points of H20, HF, and NH3 in…

A: Boiling point of any compound depends on the intermolecular forces of attraction. More strongly the…

Q: I am doing a prelab and I need help with the questions. I want to make sure I did everything right.…

A: 1.The group (I) cations are Ag+, Pb2+ and Hg22+, they all form form white precipitate, corresponding…

Q: Which of the following species has the 'second smallest' radius: Ti2+, V3+, K*, Br", CI-

A:

Q: What are the connections between reactivity and ionization energy/electron affinity trends? Why do…

A: There are many trends in organic chemistry. These trends are atomic size, reactivity, metallic…

Q: How many electrons does a halogen atom need to com-plete its octet? Give examples of the ways a Cl…

A: How many electrons does a halogen atom need to complete its octet? Give examples of the ways a Cl…

Q: Explain why N2 2+ is diamagnetic, while O2 4+, which has the same number of valence electrons, is…

A: The Lewis structure does not give any idea about molecular geometry but it purposed the distribution…

Q: 5. Explain why lattice enthalpy calculations based on the Bom-Mayer equation reproduce the…

A: Born-Mayer equation is used to calculate the lattice energy of a crystalline ionic compound.…

Q: 7. If [H+] 0.0001 M, What is pOH? %3D 10 4.

A: Using concentration of H+ And then by calculating pH and using relation between pH and pOH we have…

Q: Why do alkaline earth metals have low ionization enthalpy?

A: Solution;- Alkaline earth metals have the lowest ionization enthalpy

Q: Answer the following: (i) Which neutral molecule would be isoelectronic with CO-? (ii) Of Bi(V) and…

A: To find: (i) Which neutral molecule would be isoelectronic with CO-? (ii) Of Bi(V) and Sb(V) which…