The reactivity of the alkali metals are arranged in the increasing order of ________.  A. Fr, Cs, Rb, K, Na, Li B. Li, Na, K, Rb, Cs, Fr

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A: Given data: Molarity of Cu2+ = 0.10 M Molarity of Ni2+ = 0.10 M

Q: All phosphates are insoluble, except for the following ions. Ag+ O Hg22+ O Pb2+ Ca2+ OSr2+ OBa2+…

A: When an ionic compound is dissolved in a solvent there are two possibilities - either the compound…

Q: 17. Which of the following pairs of oxides will react with both dilute acid and alkali to form…

A: This is an acid base reaction

Q: 3. Arrange Cu, Ag, and Zn in order of their activities, listing the mos (1) n nom (2) (3) Ag 4.…

A: Metals with a high tendency to lose electrons are more reactive, so alkali alkaline earth metals are…

Q: Determine the oxidation number of lead in each ofthe following oxides:PbO, PbO2, Pb2O3, Pb3O4.(b)…

A: The oxidation number of lead in PbO O has oxidation number -2, and lead have x oxidation number  x…

Q: Lanthanide contraction caused the similarities of the radius of the 4d and 5d metals and is…

A: Answer: Shielding of valence electrons from the Nucleus by the electrons present in the inner energy…

Q: okmarks People Tab Window Help OWLV2 | Online teaching and Ix…

A: Since from the reaction we can say that the moles of Cu(NO3)2 and NO formed will be in the ratio of…

Q: In our experiment, Magnesium should be heated or burned gradually in a closed crucible? اختر احدى…

A: The solution is given below -

Q: Consider the figures above , which most likely to be silicon doped with Galium? * A B D В O c

A: Which likely Si doped with Ga?

Q: What mass of KMNO4 must be dissolved to prepare 1.25 L of 0.110 N KMNO4 solution? ( K =39 , Mn = 55,…

A: KMnO4 is an oxidising agent. When KMnO4 is used in the titration, it does not require any kind of…

Q: In the reaction, Fe2+ + Cr2O72- Fe3+ + Cr3+, which is involved in oxidation? A. Fe B. Cr2O7 C. Cr…

A:

Q: POSSIB Stainless steel consists mainly of iron and chromium. Why is stainless steel more useful than…

A: Given here stainless steel consists mainly iron and chromium and we areasked why stainless steel are…

Q: Why are almost all metals in nature found as ionic compounds in ores instead of being in the pure…

A: A question about the properties of metals, which is to be accomplished.

Q: The equilibrium constant for the ion-pairing reaction Mg2*(aq) + So (aq) = MgSO,(aq) is Kjon pair=…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 18) Which specie has the highest percentage of hydrogen? 1) он 2) Н,о 3) Н.О, 4) нзо-

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

Q: D- A sample of non-pure magnetite( Fe304) weighed 0.5g convert by the chemical reaction to Fe203…

A:

Q: Predict the products of this reaction, or press the "No Reaction" button if no reaction takes place.…

A: In the reaction between silver (Ag) and hydrochloric acid (HCl) , the precipitation of silver…

Q: Given the trend for metal activity below: Al > Cr > Ni > H2 > Pt Which of the following is FALSE?…

A: Given is the order of metal activity  Al > Cr > Ni > H2 > Pt We need to find out the…

Q: 2. The next few questions will ask you to explain the following properties for these three different…

A: Since you have asked a multiple part table, we will fill first 3 rows for you. For remaining table,…

Q: Question six

A: Reduction of Nickel (II) oxide to Nickel Metal:

Q: Which of these would displace Fe in the substance FeSO, (ag) ? O a. Cu*2 b. Na +1 O o Cus) O d.…

A:

Q: Elemental Li and Na are prepared by electrolysis of a molten salt, whereas K, Rb, and Cs are…

A: a) Aqueous salt solutions are mixtures of ions and water. When two half-reactions are possible at an…

Q: (a) Why do transition elements show variable oxidation states? (i) Name the element showing maximum…

A: a) Transition elements show variable oxidation state because their valence electrons in two…

Q: Sketch a diagram showing the formation of energy levels from the valence orbitals for Rb Rb(2) Rb(3)…

A: The atomic number for Rb atom = 37

Q: The less electropositive element is: A. Na B. Be C. Li D. Mg

A:

Q: You have a mixture of KCI, BaCO3, and SiO2, From the following, select the steps that would allow…

A: Answer: Among the given 3 compounds, KCl, BaCO3, and SiO2, the compound KCl is water-soluble and…

Q: 25. Which of the carbonates given below is unstable in air and is kept in COa atmosphere to avoid…

A: 25.  Answer :-  (a) BeCO3  BeCO3 (Beryllium carbonates) is unstable in air and is kept in CO2…

Q: 6. A manufacturing company is trying to produce a lightweight but strong cart for use by home…

A: Answer :-  To produce a light weight but strong cart for by use of home gardener manufacturing…

Q: Consider the formation of gibbsite from dissolved aluminum as depicted below: Al3+     +        OH-…

A: Chemical reaction- It consists of reactant (starting material) and products (substances formed in…

Q: Which iron species will have the greatest propensity to bond to carbon monoxide (remember CO binds…

A: Transition metals can form coordination complexes with carbon monoxide ligands using synergistic pi…

Q: What ions are present in solution? Write a balanced equation for the reaction of K(s) with H2O(1).…

A: Chemical equation is the equation in which the chemical reaction is represented. All the reactant…

Q: What Hamlet Teaches Us A X E My Hoine OWLV2 | Online teaching ar x S Balance the 1-Googl x LTU Paper…

A: The balanced chemical equation will be as follows - - > Fe3O4 (s) + 4H2 (g)  - - > 3Fe (s) +…

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: 1. What are the two major metal groups? Define them and name the main sub-categories of each group.

A: Two major groups of metals are 1). Ferrous 2). Non ferrous Ferrous

Q: Consider the reaction between ozone, O3(g) & an unknown metal:   O3(g) + X(s) → XO (s) + O2(g) at…

A: Given reaction: O3(g) + X(s) → XO (s) + O2(g)

Q: 5. Why do alkaline-earth metals as a group have higher densities than alkali metals? 6. Name the…

A: General

Q: 34. Which species can oxidize Ag(s)? Fe³+ and Ni²+ None of the given. and Mg Au³+ and Br2 O O SO42-…

A: Electron is released during the oxidation of Ag(s). The balanced oxidation reaction of Ag(s) is:…

Q: You are given pieces of Zn and Al, and amounts of ZnSO_4 and Al_2(SO_4)_3 solutions. (a) What…

A: A chemical reaction is that in which two or more compounds react with each other to form product(s).…

Q: Alkali metals react with water vigorously to form hydroxides and dihydrogen.Which of the following…

A: The alkali metal which react least vigorously with water should be Lithium because it is the least…

Q: Consider a modification to the Hall-Heroult process for aluminum production, where we keep things…

A: Original process:

Q: Which of the following contains only metals?     Ag, As, Ba, Ca   Ag, Au, Pb, Rb   As, Ge, Si, Te…

A: Metal: Metals are situated on the left-hand side of the periodic table. The metals are…

Q: takeCovalentActivity.do?locator%3Dassignment-take [Review Topics] [References] Use the References to…

A: Since in the given reaction we initially has Ni in 0 state and finally Ni is in 2+ state in Ni2+…

Q: (a) Determine the oxidation number of lead in each of the following oxides: PbO, PbO2, Pb2O3,…

A: Oxidation number is defined as the number that is assigned to an atom when it loses or gains…

Q: What is A GU per mole of dichromate ions for the reduction of dichromate ions, Cr 20 72-, to Cr 3+…

A:

Q: Match the metals with their relative activity level.  Al, Ca, Cd, Au --> most active:  second…

A: The most active metal is that which have the highest tendency of electron donation while least…

Q: Complete the reactions of Sn(II) and Sn(IV), and be sure that the reactions are balanced. Do not…

A:

Q: Usually, to make H2S, H2Se, or H2Te gas, one has to add acid to a metal sulfide, selenide, or…

A: Water reacts with the given compounds i.e. FeS, Al2Se3, MgTe to yield H2S, H2Se, or H2Te gas…

Q: Why was HCl added for the flame test of barium?

A: Interpretation: To explain why HCl was added for the flame test of barium.