Number the following metals in order of activity, with the most active metal being 1 and the least active metal being 7.  Hg _____  Fe ______  Na ______  Mn _____  Pb ______  K _____  Co _____

Q: What is the role of deuterium?

A: The role of deuterium has to be given.

Q: place the following metals from most reactive to least reactive: Ag, Zn, Pb, Na, Sn

A:

Q: Sodium oxalate, Na2C2 04, in solution is oxidized to CO2 (g) by MnO, which is reduced to Mn2+. A…

A: Given: The volume of MnO4- required for titration of Na2C2O4, (V1) = 50.1 mL. = 0.051 L The volume…

Q: What is the role of heavy metal balance sheet in our ecosystem?

A: Heavy-metal flows (Cd, Cu, Pb, and Zn) of arable, dairy and mixed farming systems and farm-gate and…

Q: Need help with Which metal is more “active” Zn or Fe?

A: According to activity series of metals, different metals are arranged according to their decreasing…

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: Which metal group has the highest chemisorption activity? 6 07 09

A: To determine the highest chemisorption activity of groups given.

Q: In four or more sentences, how do transition metals react with acid?

A: In laboratory, the general procedure to remove metal impurities is the treatment of metal with…

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: Sodium oxalate, Na,C,04, in solution is oxidized to CO,(g) by Mno, , which is reduced to Mn*. A…

A: The titration which involves a redox reaction between analyte solution and a titrant to determine…

Q: Why does less iodine cause giiter

A: Thyroid gland uses iodine to make thyroid hormones , this hormone is required to control the level…

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

A: Given is a metal activity series Al > Cr > Ni > H2 > Pt We are to find the strongest…

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: cthe unbalanceel 27.) The Girap 2 metals(Ba state by the feaction of t temperatuees,alz produ…

A: BaO, SrO ,CaO

Q: 15. What are the two possible oxidation numbers for tin? Why?

A: The possible oxidation state of Tin is given below

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: Calculate the change in free energy if 1.42 moles of NaI is dissolved in water at 25.0

A:

Q: Please help Are alkali metals or alkali earth metal more reactive why?

A: Alkali metals are group 1 elements and alkaline earth metals are group 2 elements. These are very…

Q: solvent

A: The name of the comlex is Iron(iii) thiocyanate or Ferric Thiocyanate. It dissolves to give Fe3+ and…

Q: Does the roman numeral refers to the oxidation state of an element?

A: The oxidation state of the metal refers to the number of bonds formed by that element.

Q: Iron(II) ions can be oxidised to iron(III) ions by hydrogen peroxide. Which statement explains why…

A: The group 3 to 12 of the periodic table are d-block elements. These elements are also called…

Q: Given the metal activity trend below. Al > Cr > Ni > H2 > Pt Which of the following will…

A: We have given the metal activity trend as follow                  Al > Cr > Ni > H2 > Pt

Q: What is the metal activity series? Please write it. Why is iron more reactive than copper?

A: Metal activity series is a sereis consists of metal in a specific sequence which indicates their…

Q: Assign reasons for the following: (i) In the series Sc (Z = 21) to Zn (Z = 30), the enthalpy of…

A:

Q: Use the electron configuration of Fe to explain the oxidation states of +2 and +3. Which oxidation…

A:

Q: 1) Why it is important to oxidize any Fe" or Ni" in the unknown sample?

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

Q: A metal with which of these characteristics can reduce the positive ion of another metal? O more…

A: Generally metals are strongest reducing agents in nature which means metals reduce the other…

Q: Which reagent is capable of oxidizing Cu to Cu2+ but does not oxidize Au to Au3+ ?

A: The substance that has higher electrode reduction potential acts a good oxidizing agent  for the…

Q: Some quantity of metallic iron was dissolved in sulfuric acid, and then Titrated by 17,15 mL KMnO4…

A: Metallic iron dissolved in sulfuric acid in terms of FeSO4 Then by Titration with KMnO4, FeSO4…

Q: 14 > What is the oxidation state of each element in K, Cr, 0,? K Cr What is the oxidation state of…

A: Compound = K2Cr2O7  This is known as potassium dichromate. Electronic configuration of O = 1s22s22p4…

Q: 17. What is 72.0 °F in °C and K? A: 22.22; 295.4

A: The formula to convert oF to oC is shown below, ( X °F − 32) × 5/9 = 0 °C   ( 72 °F − 32) × 5/9 =…

Q: Balance the equation and determine the reaction. 222 Rn -> Не 86

A:

Q: A metal complex solution that absorbs orange (650 nm) and yellow (570 nm) light will appear as a…

A: The three traditional sets of complementary colors, as derived from the Red-Yellow-Blue color model,…

Q: For health reasons the concentration of dissolved copper ions in drinking water should be less than…

A: The standard potentials are all measured at 298K, 1 atm and with 1 M solution. The standard…

Q: Explain the relative activity of a metal.

A: Metals have electropositive nature and are placed on the left corner of the periodic table. On…

Q: A solution contains 1.3 M (mol/L) of CaSO4 (aq) and has an overall electrical conductivity (EC) of…

A: The activity of Ca2+ in this solution is 0.005. The detailed Solution is given in next step

Q: A 0.2219 g sample of pure iron (MM = 55.847 g/mol) wire was dissolved in acid, reduced to the +2…

A: Given data, Mass of iron = 0.2219 g Molar mass of iron = 55.847 g/mol Volume of Cerium (IV) =…

Q: How does ALDI do it?

A: ALDI stands for Albrecht Discounts. It is a super market owned by two German family which has over…

Q: A volume of 2.5 ml was taken from a hypothetical sample containing (3 ) valent antimony and (3 )…

A:

Q: When the Nickel (II) ion reacts with ammonia, most students notice a colour change occurring. Can…

A: Reaction of nickel with ammonia Nickel(II)-ions are precipitated by ammonia as a green…

Q: Which of the following species can oxidize both Mn(s) and Cd(s) but not Pb(s)? e° of Cd|Cd2+ = -0.40…

A: Given information, E° of Cd|Cd2+ = -0.40 V E° of Mn|Mn2+ = -1.18 V E° of Pb|Pb2+ = -0.13 V

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: The reaction between iron and thiocyanate ions involves this equation: Fe3+ (aq) + SCN" (aq) =…

A:

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: List the elements: H, Sn, Mg, Cu, Pb, Ag, Zn and Fe from the most active to the least active.…

A: The ability of an atom to release electrons present in its valence shell determines its reactivity.…

Q: transition elements are able to show catalytic properties why ?

A: Transition metals show catalytic properties.

Q: Titanium is a very reactive metal. Explain why titanium has a high corrosion resistance to seawater…

A: The oxidation of metals by the attack of atmospheric oxygen and water is called corrosion.

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: Which of the following species can oxidize both Mn(s) and Cd(s) but not Pb(s)? e° of Cd|Cd²+ = -0.40…

A: As Ni has reduction potential greater than that of Mn and Cd, so it can oxidise both Mn and cd. But…