the substance not likely to contain CaCO3 is : a  dolomite b  sea shells c  a marble statue d  calcined gypsum

Q: Please write a balanced formula for U(VI) (as uraninite; UO2) using Mn2+ as a reductant for U(VI)…

A:

Q: How does the Mineral Family- Oxides is used in everyday life and in Engineering activities?

A:

Q: Why does sodium fluoride have a melting point of 993°C but nitrogen has a melting point of -210°C?

A: Please find your solution below : Melting point of any substance is defined as the temperature at…

Q: Explain and elaborate on what the synthesis methods of Cobalt(II) sulphate is and the types of…

A: Cobalt(II) sulphate can be synthesized by the reaction of cobalt metal with aqueous solution of…

Q: Write a balanced formula for U(VI) (as uranyl ion; UO22+) using Fe2+ as a reductant and Fe(OH)3…

A:

Q: VF5 is a liquid that boils at 48°C, whereas VF3 is a solid that melts above 800°C. Explain this…

A: The reason why VF5 is a liquid that boils at 48°C, whereas VF3 is a solid that melts above 800°C has…

Q: Lithium forms several useful organolithium compounds.Calculate the mass percent of Li in the…

A: Lithium stearate = C17H35COOLi Molar mass =

Q: B) Calculate the radius of a tantalium atom, given that Ta has a (BCC) crystal structure, density of…

A:

Q: In clays, the negative charge is exactly balanced by the absorbed cations. A True B False Question…

A: 17. It is true that in clays the negative charge is balanced by the adsorbed cations. True 18. Yes,…

Q: draw the structure of of Fe2(SO4)3.

A:

Q: Molybdenum has a BCC crystal structure, an atomic radius of 0.1363 nm, and an atomic  weight of…

A:

Q: What does the following equation represent? CaCO3 + 2H* = Ca2+ + H20 + CO2 Dissolution of magnesite…

A:

Q: Define the term a substitutional alloy?

A: Alloy is the one which is formed by mixing the metals.

Q: (a) Deduce the number of 3d electrons in the following ions Fe3+ , Cu2+. (b) Why do transition…

A: Since you have asked multiple questions, we are solving first questions for you. For remaining…

Q: Briefly define each term. a. orthosilicate b. amphibole c. pyroxene d. pyrosilicate e. feldspar

A: Since you are posted with multiple sub-parts. As per the rule, I am answering the first three…

Q: Assign reasons for each of the following :(i) Transition metals generally form coloured…

A: In periodic table, four main blocks are there. These are s block, p block, d block and f block.…

Q: MCQ 179: The temperature at which thermal decomposition of metal nitrates (eg. Ca(NO)) of Group-Il…

A: Group II metals are called as alkaline earth metals. They form metal nitrate ( e.g. Ca(NO3)2.All the…

Q: Disulfur decafluoride is intermediate in reactivity between SF₄ and SF₆. It disproportionates at…

A: Disulfur decafluoride is an intermediate formed by the reaction of SF4 and SF6. It is not very…

Q: An unknown metal with atomic radius of 0.175 nm forms an SCC structure. What is the density of the…

A:

Q: What is species of a mineral

A: naturally occurring inorganic substances with particular arrangement of atoms with definite chemical…

Q: (a) Determine the number of calcium ions in the chemicalformula of the mineral hardystonite,…

A: The formula expressing the existing atom's types with their stoichiometric number is addressed as…

Q: 18. Isomeric cobalt compounds and [Co(NH3)sBr]SO4 are red and violet respectively. Which of the…

A: Isomeric structures are [Co(NH3)5Br]SO4    and [Co(NH3)5SO4]Br Among them [Co(NH3)5SO4]Br is red in…

Q: which etement would have कह षननना ०कमीद्वपहळंदे of LAr] 3 d2for itd 34 ion ņ Enter the element…

A:

Q: 9. The general formula of silicate ion present cyclic silicates is (SIO3)n2n- O sio44- Si2052-…

A: Cyclic silicates contain three or more tetrahedral SiO42- units. These units are linked by two…

Q: Describe the nature of electrical conduction in (a) germa- nium doped with indium and (b) cadmium…

A: (a) Germanium doped with indium: When germanium is doped with indium, it creates new levels at the…

Q: Potassium superoxide, KO2, is often used in oxygen masks(such as those used by firefighters) because…

A: Chemical equation is the representation of a chemical reaction, in which the reactants and products…

Q: 1. Which of the following contains the smallest percentage of iron? A. pyrite (FeS2) B. hematite…

A: A) pyrite (FeS2)

Q: MCQ 168: Nitrates (-NO) of Group-II down the group require for their decomposition, is high in A.…

A: A) pressure   B) TEMPERATURE  C) ELECTRICITY  D) ALTITUDE

Q: MCQ 19: Group IV clement that acts as an insulator is A. Carbon (Diamond) B. Tin (Sn) C. Lead (Pb)…

A: The energy gap between valance band and conduction band determines wheather an element will conduct…

Q: Which of the following statements about titanium dioxide is false?   A. The titanium has a d0s0…

A: B) FALSE. Explaination TiO2 don’t have NaCl type structure instead rulite with a tetragonal…

Q: 3. Calculate the radius of tantalum atom, given that Ta has a BCC crystal structure, a density of…

A: Density =16.6 gcm-3let length of the edge=a cmNumber of atoms per unit cell,Z=2(bcc)Atomic…

Q: Does roasting increase or decrease the mass of sulfides?

A: During the roasting of sulfide ores , sulfides are converted into oxides and sulfur is converted…

Q: How many grams of chromic sulfide will be formed from 1.5 kg of chromic oxide according to the…

A: 2 Cr2O3 + 3 CS2 = 2 Cr2S3 + 3 CO2 This will be the required balanced chemical equation, Given,…

Q: Predict the structure and label the charges on the cations in the mineral hedenbergite, CaFeSi2O6

A: Molecular geometry is the 3-D representation of the molecule in a space. In terms of electron…

Q: Give reasons for the following: (i) N2 is not particularly reactive. (ii) Halogens are strong…

A: 1. N2 is particularly not reactive because triple bond is present between two nitrogen atoms and it…

Q: (i) Name the method of refining to obtain silicon of high purity. (ii) What is the role of SiOz in…

A: Zone refining: It is the process that is used to refine hard metals like silicon in the purest form.…

Q: Give reason 2 a) PCl5 acts as an oxidising agent. b) Dinitrogen is chemically inert

A: If the compound itself try to reduce then it will oxidise other . If the compound oxidise other…

Q: What solid would form when phosphoric acid (H3PO4) is added to milk of magnesia (Mg(OH)2)?

A: When an acid reacts with a base it produces salt and water. Such reactions are known as acid-base…

Q: Is bort a diamond?

A: Bort is used as a abrasive coatings for drill bits, grinding wheel and for cutting stones.

Q: When the bidentate glycinate anion H2NCH2CO2-(gly-) reacts with Co(III) oxide, two Co(III)…

A: Reaction of glycinate anion with cobalt(+3) will form a octahedral complex of type M(AA)3-since the…

Group 14 Elements

The following elements come under group 14 of the periodic table.