4. Cite two possible applications of silver nanoparticles. Explain the role of its nano-size towards its applications.

Q: Most abundant metal on the surface of the earth:(a) Iron(b) Aluminium(c) Calcium(d) Sodium

A: There are many metal on the surface of the earth but the one that is most abundant on the surface of…

Q: NH.C1 Fe(NO:)3 TiBrs Cu3P SnSez GaAs

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: Q6. What is the radius (in cm) of a cylindrical silicon block (density = 2.03 g/cm3) with the height…

A: The radius of cylindrical silicon block can be easily determined by its density and the total mass…

Q: 11. Which of the following nanomaterials is a class of naturally occurring nanomaterial? Choose…

A: Naturally occcuring nanomaterials can be found in volcanic ash, ocean spray, fine sand and dust,…

Q: Which of the following mechanisms give rise to agglomeration of charged particles? O a.…

A: Formation of lumps, caking, accumulation on treating the powder like substances is called the…

Q: Silicon Zinc

A:

Q: a. Metal or Nonmetal Explanation: State of Matter b. Metal or Nonmetal Explanation: Luster Metal or…

A: Given that : We have to give an explanation for both metals and non-metals on the basis of :

Q: Disasters happened with the unsafe storage and handling of fireworks/firecracker products. Enumerate…

A: There is little difference in firecrackers and fireworks. Fireworks are a simple devise used for…

Q: What is a chemical property of sodium?

A: Sodium is an element with atomic number 11 and represented by the symbol Na.

Q: Elemental phosphorus is used in the semiconductor industry. It can be obtained from an ore called…

A: The reaction above can be correctly written as below: 4Ca5(PO4)3 F + 18SiO2 + 30C ----->  3 P4 +…

Q: what are the types of stabilizing agents found in the synthesis of nanoparticles?

A: A capping agent is act as stabilizing agent in preparation of nanomaterials. A capping agent is…

Q: coal? CO

A:

Q: What substance is closest to 1.47 g/cm^3?

A:

Q: One kind of metallic material consists of 82% Pb, 15.0% sb, and 3.0% Sn. a) how many grams of alloy…

A: The given composition of the alloy is: metalpercentagePb82%Sb15.0 %Sn3.0 % It states that if the…

Q: Suppose you wish to calculate the mass of sulfuric acid that can be obtained from an underground…

A:

Q: In a given alloy of Nb-Vd: * in the given 24 wt % Nb - 76 wt % Vd alloy with the density of the pure…

A: Given: Mass of Nb in 100 g alloy = 24 g Mass of Vd in 100 g alloy = 76 g Density of pure Nb = 8.57…

Q: Crystalline hydrate is not a drug: A) Iron (II) sulfate B) Copper (II) sulfate B) Magnesium sulfate…

A: About crystalline hydrate:

Q: Fe (s) + CUSO, (aq)

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: Match each statement in the left column of the table below with a compound on the right. In your…

A: In the given question properties of species are mentioned in column -1 while in column-II species…

Q: 6. Crystalline hydrate is not a drug? A) Iron (II) sulfate B) Copper (II) sulfate B) Magnesium…

A:

Q: A 67.2 gg sample of a gold and palladium alloy contains 3.55×1023 atomsatoms . A) What is the mass…

A:

Q: Match each statement in the left column of the table below with a compound on the right. In your…

A: Different elements combined to form different compounds. These are compounds are held together by…

Q: The analysis of a sample of the mixture obtained during the industrial preparation of nitric acid…

A: This problem can be solved from the basic physical chemistry problem.

Q: Which compund is optically inactive?

A: The compounds' chirality can be predicted by their inability to give superimposable mirror images or…

Q: Manganese Sulfate +   Aluminum Phospate

A: Given incomplete reaction is :  Manganese Sulfate +   Aluminum Phosphate ------------> ?…

Q: (c) MnO, + SO, Mn* + SOf

A:

Q: potassium iodide + lead (II) nitrate

A: The reactants given are  1) Potassium iodide i.e KI 2) Lead (II) nitrate i.e Pb(NO3)2

Q: State four advantages of using nanomaterials in wastewater treatment

A: Nanomaterials, nowadays, are being successfully used in various aspects of science and one of the…

Q: The physical basis for life is the carbon atom. This atom   a. is more abundant than silicon.   b.…

A: Carbon is a chemical element with the symbol C and atomic number 6. It's non metallic and…

Q: Marble is composed primarily

A: CaCO3 is an ionic compound thus it gives ions when dissolved in water. Dissociation is as: Ksp…

Q: 0.896 g sample of impure magnesite, MgCO3 , was decomposed with HCl; the liberated CO2 was collected…

A:

Q: What is the mass percentage of Na in NaNO₃?

A:

Q: Which of the following used to be more precious than gold or silver, due to difficulties in refining…

A: The metal that was more precious than gold or silver due to difficulty in refining it was Aluminum…

Q: SiO:(s) + 2 Fe(s) +

A: Question 01: Given chemical reaction: SiO2 + 2Fe + O2 ⇔ Fe2SiO4   We need to determine the oxidation…

Q: In the production of printed circuit boards for the electronics industry, a 0.765 mm layer of copper…

A: Area of one board = 7.55 cm x 18 cm = 135.9 cm2.Area of 8700 board = 8700 x 135.9 cm2 = 1182330…

Q: . potassium carbonate + barium nitrate

A: The reactants given are  1) Potassium carbonate i.e K2CO3  2) Barium nitrate i.e Ba(NO3)2

Q: The EPA has set a limit for uranium in drinking water at 30 micrograms per Liter. This corresponds…

A: The density of water is 1 g/ml. The volume of 1 gram of water is 1 milliliter. The volume of 2500…

Q: 1- lopper and nitric acis Porassium ioaize

A: "Since you have asked multiple questions, we will solve the first question for you ( as per our…

Q: All of the following are properties of zinc. Which is NOT a physical property. It corrodes with…

A: In this question, we will select the statement which is not a physical property that means it is a…

Q: Which of these is a property of metals? O It's very brittle It's malleable O They are used in food O…

A: Metals :-  Solid substances which can form cations readily by losing electrons and form lattice in…

Q: 1. Calculate the molar mass of the following compounds. a. magnesium phosphate b. sodium sulfide c.…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

Q: Graphene is a __________? a. metallic nanomaterial b. carbon nanomaterial c. quantum dots d.…

A: Graphene exist as single layer of atoms arranged in two dimensional lattice.

Q: b. What is the role of iodine in the human body? c. How many milligrams of iodine would be a typical…

A:

Q: Metal or Nonmetal Explanation: State of Matter b. Metal or Nonmetal Explanation: Luster Metal or…

A: Metal : It is a type of solid substance which is a hard , shiny and very good conductor for heat…

Q: 8. A 2.856-g sample of limestone was analyzed for Fe, Ca, and

A: A 2.856-g sample of limestone was analyzed for Fe, Ca, and Mg.

Q: Silver (I) Chloride dinitrogen dioxide Vanadium (v) oxide > >

A:

Q: ii. Considering the structure of nanoparticles, explain what the Wigner-Seitz diameter, dws, is and…

A:

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.