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Q: "Analytical data are never more reliable than the sampling technique". Explain this statement.

A: Answer- Analytical data is a collection of data that is used to support decision making and/or…

Q: The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by…

A: Given that Radius of strontium atom = 215 pm . Since we know that Diameter = 2 × Radius =2 × 215 pm…

Q: 7. F2 (g) NacI (s) +

A: Balance chemical equation, balance chemical equation can be define as the reaction in which number…

Q: ** Directions Match the items in column A with those in column B. Write the letter of each correct…

A:

Q: C) Eto. ال meo. + + Co₂ Et [11 CHO I 7 CHO 7 e) Mod +- -

A: Use cycloaddition reaction in presence of heat Stereochemistry keep in mind of each reaction.

Q: Cl₂, H₂O CI CI

A: Alkene reacts with halogens to form halonium ion intermediate, water can then attack on it to form…

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: Which of the following elements is a metal? O о As I Sn Se

A: To solve this problem we have to identify the given elements as metals

Q: How many atome is there in this

A: Since as we know that 1 mol of AlCl3 contains = 6.023 * 1023 molecules  Therefore 6 mol AlCl3  will…

Q: a Pzonite hhe Durte None q thue 8keltel CIlner bond) 8 tmeture.

A:

Q: . Zn(s) + O2(g)

A: ZnO is formed .

Q: Calculate mass recovered.  Calculate percent recovery.  initial mass: 2.09 g watch glass + filter…

A: The question is based on the concept of experimental calculations. we have to calculate mass…

Q: 1 CI 2 F 3 ||| 4 5

A:

Q: 19 Which of the following most accurately models the relationship between compounds and elements? A…

A: Given: 19. Models to determine the relationship between elements and compounds.

Q: d) The atomic mass of silver is 107.8682 u. Determine the mass density of Ag in g/cm.

A: Given, Atomic mass of silver is 1o7.8682 u Lattice constant = 4.09 Ao  Mass density = ?

Q: 2p 2s 1s 30 17g 30% 1u 201 20 101 10g Q2/ Complete the following diagram for the carbon molecule…

A:

Q: 4.2 3.8 3.4 2.6 f1 (ppm) 2.2 1.8 1.4 1.0 0.6 0.2 -0 2.00-1 0.98- 2.02-1 3.951 2.941 3.59 -3.57 3.56…

A: In the 1-H NMR spectra, the number of peaks will be the same as the number of different protons…

Q: A 10.61 gram sample of a certain hydrate of copper (II) sulfate, is heated until all the water is…

A: The question is best on experimental technique of determination of molecular formula of the hydrate.…

Q: Q21. Compare graphite and diamond

A: Graphite and diamond are allotropic forms of carbon that exist in nature.

Q: What is Bioinorganic chemistry?

A: Certain metal ions are involved in the biological reactions that place inside the living organisms.…

Q: tor HCI A в с ČI

A: The question is based on the concept of organic reactions.   we have to identify the Product formed…

Q: QUESTION 7 5.64 k Joules equal 564000 joule O True O False

A: We know that, 1 KJ = 1000 J

Q: what are refractory materials?

A: Materials that are inorganic non-metallic materials are called refractories.  They can withstand…

Q: estion b

A: Given data set: Atomic mass of silver = 107.8682 g/mol Silver crystallizes in FCC form Lattice…

Q: What is the estimated average atomic mass for this element? A. less than 86 amu C. exactly 88 amu…

A: The instrumental method that is used to determine the structure of the chemical compound by…

Q: Given the following data 2 CIF(g) + O2(g) Cl2 O(g) + F20(g) 2 CIF, (9) + 202 (g) C, O(g) + 3F20(g)…

A: Interpretation: From the given reaction, the ∆H of the given equation is to be calculated.

Q: Cl CI

A: The longest chain of carbon atoms is first selected. It is considered as the parent chain. The…

Q: Which one is the most common method used for the purification of liquid mixtures?

A: The mixture of liquid can be separated by different methods into pure liquids.

Q: 6a Kami Uploads they? 6. Which element has the longest name? Which element has the shortest name?

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: + NaH DMSO Drawing + OH Br

A:

Q: 3. +¹C 3 n + 103Lr 1. 4. 35Cl + p 17 4 20 α + 5. 235Cm + In → 96 91 + 8 n + Zr

A: Balancing a nuclear reaction involves making sure that the total number of protons and neutrons…

Q: 2.) Suppose you're attempting to measure the density of a liquid that is highly volatile (it…

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Q: The core of planet Earth is primarily composed of oxygen and silicon O gold and silver O iron and…

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Q: QUESTION 32 Which pair has similar chemical properties? O ¹H and 22 Na O 12C and 28 O 160 and 32g…

A: Chemical properties depend on the electrons present in the elements.Total electrons of an element =…

Q: What are the following? Give one example of each.(i) Sweetening agents(ii) Food preservatives(iii)…

A: A) Sweetening agents: Artificial sweeteners are substances that are used as substitutes for natural…

Q: Liquid paraffin . . . . . . . . . . . . .  20 mL           Zinc oxide . . . . . . . . . . . . . . .…

A: Hence, the amount of mass of liquid paraffin present is 44 g. The correct option is option c.

Q: SOLVE STEP BY STEP IN DIGITAL FORMAT Structure of Metal Materials: 8. A colleague calculated the…

A: Structure of iron is BCC Atomic radius = 1.24 Angstrom Atomic weight = 55.85

Q: 3373 А

A: Pyridinum tribromide is a brominating agent. Here bromination of alkene will take place where…

Q: Which statement about detecting temperature is TRUE?   Nociceptors detect small changes in…

A: Incorrect options are : 1.)    Nociceptors detect small changes in temperature.    Reason :it…

Q: Q20. Determine the direction of the reaction. (draw an arrow to show the real direction) A. Bal2 +…

A: Note: Since you have posted a question with multiple sub-parts, we will provide the solution only to…

Q: Ti+ [Ar] ↑ ↑ За 45 [Ar] 3d 45 [Ar] ↑ 1 ↑ ↑ 3d 45

A: Ti is 4th-period transition metal whose atomic number is 22

Q: 5,6

A: 5.A machine known as centrifuge  spins to separate blood components. the blood components are…

Q: h Oxidation: Cr2+→ Cr³+ + e Reduction: Cu2+ + 2 e² → Cu Net: 2 Cr2+ + Cu2+ Cu + 2 Cr³+ What is the…

A: Oxidation is defined as an increase in the oxidation state of the element.It can also be defined as…

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.