Which one of the following compounds is chromium (X) oxide? O Cr2010 O Cr100 O CrO5 O Cro

Q: Many ionic compounds are used as paint pigments. Name each of the following pigments. a. CdS…

A: The name of each of the following pigments has to be given. a. CdS (yellow) b. TiO2 (white) c. Cr2O3…

Q: → PBSO4 + MnOq d PbO, + Mn²+ + SO,²- - e HNO, + Cr,O,²- → Cr* + NO;

A: The given reaction is: In the given reaction, Pb is getting reduced from +4 to +2 and Mn is getting…

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: Indicate which of the following Ti3+ compounds exhibits the wavelength absorption shortest wave in…

A:

Q: Which of these are paramagnetic in their ground state?(a) Ga(b) Si(c) Be(d) Te

A: Interpretation: The elements that are paramagnetic in their ground state are to be determined.…

Q: Which one of the following elements is an example of a transition metal in period 4? а. Carbon O b.…

A: Transitions metals are also known as d-block elements. These are present in the middle of the…

Q: Write the electron configuration for the following: A) Fe*3 B) Cu*1 C) Co

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Q: Which of the following has the lowest first ionization energy? Rb Si P Al S

A: as along the period the first ionisation increases and along with the group the first ionisation…

Q: what is the physical state of element Co? what is the physical appearance of element Co? what is…

A: Cobalt is a d - block element. It's atomic number is 27 and atomic mass is 58.933 g/mol. It is…

Q: lanthanide ion lan

A: The Horrock's equation is expressed as: q=AkH2O-kD2O-B Where, A and B are the proportionality…

Q: What is the chemical name? FeCl2

A: FeCl2 is a paramagnetic solid with a high melting point. The compound is white, but typical samples…

Q: Which of the following is classified as a metal? Ar O 02 Са O Ca OF

A:

Q: What makes the crystal of KCl sometimes appear violet?

A: The rate of formation of crystals results in the defects in the solids during crystallization…

Q: Which of the following metals is the most chemically reactive?  : Sr, Mn, Be, or Cr  Which of the…

A: An atom can be considered as the smallest unit of any matter. An atom is composed of certain…

Q: e AS°, rxn

A:

Q: Name the following transition metal compounds, or give chemical formula based on the name of the…

A: To write iupac name and structure of given compound  For writing name of a complex  First the…

Q: Which one of the following has the smallest atomic radius? Cl Li Na F Cs

A: Atomic radii: Atomic radii can be defined as by saying that the distance of the nucleus from the…

Q: Which of the following elements is easiest to ionize (has the lowest ionization energy)? O A. Si O…

A: Ionisation energy is the minimum amount of energy required to remove the outer most electron from an…

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

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

Q: Give systematic names for the following formulas:(a) [Ni(H2O)6]Cl2            (b)…

A: The IUPAC name of [Ni(H2O)6­]Cl2 is hexaaquanickel(II)chloride.

Q: The d-block element among the following is a. Lead Ob. Thorium O C. Helium d. Osmium

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Q: Write the chemical formula for a compound containing the follo tellurium and tin, 2:1 O A. SnTe2 O…

A: Tellurium with the chemical symbol Te and atomic number 52 is a relatively rare chemical element. It…

Q: Which of these elements is most reactive? Li K Na

A: alkali metals are most reactive among other elements of the periodic table,  Because they easily…

Q: Whic of the following elements has the highest first ionization energy? a) C b) B c) F d)Li  e)…

A: Since we know that   Ionization energy is the amount of energy needed to remove an electron from…

Q: Why the reactivities of either Co(III) or Cr(III) are very low?

A: When the ligand field stabilization energy of the metal ion is low  then the metal ion is less…

Q: Is Gd considered a F-block element, main group element, transition metal, or halogen? main group…

A: Gd is an atomic symbol of the Gadolinium element and has an atomic number of 64. Gadolinium is a…

Q: 19 - Which of the given elements has similar properties with iodine (I) A) Br B) Te C) Ar D)…

A: Generally, the elements of a given group have similar properties due to similar general electronic…

Q: Which of the following atoms is paramagnetic? A) AI В) Ва C) Kr D) Zn E) Хе

A: Which of the atoms is paramagnetic ?

Q: Which of the following atoms is diamagnetic? A) Mn B) O C) Sr D) Li E) CI

A: Given :-  Mn, O,  Sr,  Li,  Cl  To be determined :-  Atom which is diamagnetic out of the above…

Q: Which of the following is the electronic configuration of the Chromium(III)? Cr3+ [Ar] 3d3 .a O Cr3+…

A: The Aufbau principle indicates the manner in which electrons are filled in the atomic orbitals of an…

Q: QUESTION 15 Which of the following is diamagnetic? 13AI 15P O 24Cr O 48Cd 83Bİ

A: Which of the following is diamagnetic ?

Q: What is the charge on the Cr ions in Cr2O3?

A: We have Cr2O3 , we have to calculate the charge on Cr ion.

Q: 11. Which of the following belongs to alkaline earth metals? O K] 4d5 5s1 O (Ar] 4s2 O [Ar] 3d10 4s2…

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

Q: Which of the following is an alkaline earth metal? A.K  B.Cu  C.Mg  D.Na  E.Al

A: The elements that comes in group 2 of the periodic table are called alkaline earth metals.  They are…

Q: ÇI CO,Na Structure Y Structure Z

A: This is simple an acid - base reaction

Q: 1. Write the chemical formula for a. potassiumamminetribromoplatinate(II) b.…

A: We have to write the chemical formula for the following given potassium amminetribromoplatinate(2)…

Q: Which of the following elements has the highest first ionization energy? Ве O Na Li Rb K

A:

Q: MCQ 36: Halogen that can react with noble gases like Xe is A. F B. CI C. Br D. I

A: Noble gases are those element which have complete octet i.e., they have 8 electrons in their valence…

Q: If e = 1, what can be deduced about n? If me = 2, what can be said about e? On 1 Oe >2 On21

A: Please find your solution below : Principal quantum number denotes the principal electron shell of…

Q: 25. An oxide in Period 3 reacts with NaOH and HCl to form salts. What is the formula of the oxide A…

A: An oxide of period 3 of the periodic table is reacting HCl i.e. acid and NaOH i.e. a base, so the…

Q: Question attached

A: An ion is formed by the loss or gain of electron from the atom. If the electrons are gained,it…

Q: AgBr + GAPO, →_Ag,PO, + GaBr, AIBr, + K,SO, → _ KBr + Al,(SO,),

A: The question is based on the concept of balancing the reaction    in first step of any calculations,…

Q: Which of the following is an Alkaline earth metal O Li O AI Fe Ca

A: Alkaline earth metal are gropu 2 elements of periodic table.

Q: Which following element has the condensed electron configuration [Ar] 4s? 3d ? Lütfen birini seçin:…

A: The element with electronic configuration of  Ar4S23d3 has to be identified.

Q: b. What is the % w/w Fe3O4 in the sample? O 10.33% O 32.58% O 23.24% O 48.86% O 21.72%

A: Solution:   Given A numerical problem based on isolation of metals, which is to be accomplished.

Q: 1. Which element belongs to Group 4A? ○ calcium ○ carbon ○ selenium ○ chromium 2. Which of the…

A: 1) The element that belongs to Group 4A has to be identified. The given elements are Calcium,…

Q: OH DMP 1.CO,Cl, DMSO 2.(Et),N (i) (j) HO

A:

Q: Choose one or more: O A. CO,(g) +C(s.graphite) → 200(g) O B. C(s,graphite) +O,(g) –→ Co,(g) O C.…

A: ∆Hrxn is the standard enthalpy of reaction. This is calculated by subtracting the sum of standard…