Write the balanced NET ionic equation for the reaction when Mn(C₂H₃O₂)₄ and (NH₄)₂S are mixed in aqueous solution. If no reaction occurs, simply write only NR.

Q: 2: Calculate the oxidation number of chromium in Cr,0,².

A: Calculate the oxidation number of chromium in Cr2O72-

Q: Provide the balanced net ionic equation for the reduction of Fe3+(aq) to Fe2+(aq) by Sn2+

A: Balance Chemical equation means no of atoms or ions should be equaal in both side reactant and…

Q: Which of the following is not isoelectronic with the rest? * O [PtCI,(n²-C,H,)I [(n²-C,H)Fe(CO). F O…

A: Complexes posses same number of electrons are known as isoelectronic species.

Q: why Ti^3+ is purple while Ti^4+ is colorless ?

A: Atomic number of titanium (Ti) is 22. The electronic configuration of titanium (Ti) is 1s22s22p63…

Q: Determine the oxidation state and the dn configuration for Pt in [PtCl2(PME3)2].

A: The coordination complex is the complex in which the central metal atom is bonded with the ligand by…

Q: Select the element whose +2 oxidation state is least stable in water. O Ni Co Ov Zn

A: Hydration energy: when one mole of ionic crystal is dissolved in water the water molecules are…

Q: How would you account for the following? (i) Transition metals exhibit variable oxidation states.…

A: The elements present in the d-block of the periodic table are known as transition metals as they…

Q: How do the transition metals in Period 4 affect the pattern ofionization energies in Group 3A(13)?…

A: Concept introduction: Ionization energy: The required energy to remove an outermost electron from a…

Q: What is a transition metal in the fourth period from the following list: N, Cu, Ag, Yb?

A: Transition metals are the elements that are placed in the d-block of the modern periodic table.…

Q: Determine the oxidation state of the transition metal in: Cr2O7  Cr=

A: Let ' x ' be the oxidation number of Cr.  Oxidation number of O = -2  2x +(7×-2) =02x-14=02x=14x=7…

Q: Write a balanced equation for the reaction between dichromate ion and iron(II) to yield iron(III)…

A:

Q: What happens when transition metals are oxidized?

A: What happens when transition metals are oxidized?

Q: dy 4.1. MetaliIs an element that readily produces positive ions (cationsl and has metallic bonds to…

A: Heavy metals refers to any metallic chemical element that has relatively high density and is toxic…

Q: What are the oxidation states of the transition metals inthe following series of compounds? Nb2O5,…

A: An oxidation state or oxidation number is defined as the degree of oxidation for an atom in a…

Q: would a percipitartion reaction occur between Mn(NO3)2 and K2CO3?

A: Here, we have to determine whether a precipitation reaction occur between Mn(NO3)2 and K2CO3.

Q: Would you expect salts of the gold(I) ion, Au+, to be colored? Explain.

A: The presence of a partially filled d orbital is responsible for the coloration in ions because of…

Q: A sample of an industrial waste water is analyzed and found to contain 25.8 ppb Cr2+. How many grams…

A: Parts per billion (ppb) :-  The number of parts of solute present billion (109) parts by weight of…

Q: How will you recognize that a single replacement reaction has occured when you comine: (a) an…

A: Single Displacement reaction:    It is also known as exchange reaction. The chemical reaction in…

Q: Which of the following ions would be colored in solution? A) Hf*+ B) V5+ C) La3* D) Co3* E) Ti**

A:

Q: In aqueous solution, Co(H₂O) 6²+ is pink, CoCl4²- is blue, and CI- and H₂O are colorless. The…

A:

Q: 4. Draw the Lewis structure for the SCN' ligand and explain the two different ways that it can…

A:

Q: A pyrite rock is mainly composed of FeS2 and inert. If a pyrite rock contains 48% Sulfur, what is…

A: the pyrite rock has 48% suphur, and rest iron and inert FeS2. inert therefore,  iron and inert…

Q: (a) Complete and balance the following chemical equations: (i) Cr2072- + I- + H+ ——–> (ii) Mn04–…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: draw the structure of the possible product forthe following reaction, and how does the oxidation…

A: We have to draw the structure of possible product .and identify how the oxidation state changeg.

Q: 4. Draw the Lewis structure for the SCN: ligand and explain the two different ways that it can…

A: Introduction :  Bridging ligand can be defined as a ligand that connects two or more atoms usually…

Q: TRUE OR FALSE Fe(NO3)3 is an acidic salt.

A: Acidic salt is the salt which on dissolution water gives H+ ion so the solution becomes acidic in…

Q: Give reasons :(i) Zn is not regarded as a transition element.(ii) Cr2+ is a strong reducing agent.

A: (i) Zn belongs too d block but not considered as transition elements because it contains completely…

Q: 2. Which one of the following classifications is correct and most specific? Select one: O a. Sn, Pb,…

A: Since you have posted multiple questions, we will solve only first question for you. If you want the…

Q: (a) What is the range in electronegativity across the first (3d)transition series? (b) What is the…

A: (a) Transition elements exhibit a relatively small change in electronegativity consistent with the…

Q: How would you account for the following: (i) Metal-metal bonding is more extensive in the 4d and 5d…

A: Metal from the Greek term (métallon), "mine, quarry, metal") is a substance that, when properly…

Q: What is the oxidations state of S in S3O62-. Explain how this is possible.

A: Given molecule is S3O62-

Q: Why ZnO appears yellow on heating?

A: The interruption of patterns in the solid crystal leads to the formation of defects.Stoichiometric…

Q: Suggest a reason why copper(II) compounds are often colored but copper(I) compounds are colorless.

A: Given :  why copper(II) compounds are often colored but copper(I) compounds are colorless ?  To…

Q: Explain why a solution of [Ni(H2O)6]²+ is green but a solution of [Ni(CN)6]²- is colorless

A: Given that the solution of [Ni(H2O)6]2+ is green and the solution of [Ni(CN)6]2-. The color of the…

Q: Deduce which compound is a common ore of the element listed and explain briefly: (a) Fluorine: CaF2…

A: CaF2 is the fundamental part of Fluorite, a mineral found and abused for Fluorine creation.…

Q: a) b) c) Calculate the M oxidation states: Draw the structures: What are the colours and why?…

A:

Q: 20. What is the oxidation number of Cr in Cu,CrO,? А. +12 В. +3 С. +4 D. +5 E. +6

A:

Q: (a) What is the lanthanide contraction? (b) How does it affectatomic size down a group of transition…

A: Lanthanoid contraction, in chemistry, is the steady decrease in the size of the atoms and ions of…

Q: What is the chemical formula of Tetraquadibromochromium(III) chloride?

A: Given,  The name of the complex compound is: Tetraquadibromochromium(III) chloride The chemical…

Q: Choose all of the following that would be colorless in an aqueous solution. Zn2+ O sc3+ Cr3+ Fe2+…

A: Only the ions that have electrons in d orbital and in which d-d transition is possible will be…

Q: The oxidation states of transition metals are shown in the table. Why is it possible for a…

A: The elements which have partially filled d-subshell in elemental or in normal oxidation states are…

Q: Calculate the oxidation number of Cr in K2CrO7

A: The oxidation number of Cr in K2Cr2O7 is to be calculated. The total number of electrons the atom…

Q: hydrated CuSO4 is blue in colour. why?

A: The molecule that contains water molecule is termed as hydrous.

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.