Sodium tetraborate decahydrate (Na2​B4​O7​⋅10H2​O ) What is the percentage of boron(B), Sodium(Na), Oxygen(O), and Hydrogen(H) in the compound?

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: Which of the following statements is false?   a. Stainless steel contains chromium and nickel,…

A: There are different types of plating are used to protect the metal from the corrosion . Different…

Q: 18. What is the percentage by mass of carbon in the insecticide Lindane, C6H6C16? * 24.7 % 1.00 %…

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Q: . magnesium selenide

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Q: What will happen to calcium phosphate Ca3 (PO4) 2 when heated from 60 ° C to 100 ° C?

A: The solubility product of Ca3(PO4)2 is 2.0 X 10-29

Q: A 93.6 g sample of ground water is found to have a lead concentration of 15.65 ppm. Calculate the…

A: Given : Mass of sample = 93.6 g Concentration of lead = 15.65ppm

Q: Give the chemical formula for trans-dichlorobis(ethylenediamine)platinum(IV). Use (en) as the symbol…

A: dichloro: Cl2 Bis ethylene diamine = (en)2 platnium(IV) so, Pt

Q: Which three steps need to be taken for the synthesis of elemental transition metals

A: Transition metals Elements that have (or easily create) partially filled d orbitals are known as…

Q: Which toxic substance is often used to extract gold and results in harmful environmental effects?

A: Metallurgy :- The extraction of metals from their minerals by applying different techniques is known…

Q: What is the difference between iron and steel? What is the difference between wrought iron and cast…

A: In the earth's crust metals occur both in combined state in the form of minerals as well as in the…

Q: An Al2O3 whisker is a small single crystal used to reinforce metal-matrix composites.  Given a…

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Q: What is Manganese ?

A: The arrangement of elements in increasing order of atomic number in the tabular form is termed…

Q: Q1/ What are the main iron ores?

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

Q: How is Arsenic produced?

A: Arsenic is one of the naturally occurring element. It can be either organic or inorganic form.

Q: Which is the correct formula for sodium hexafluorocobaltate(III)?

A: The correct formula for sodium hexafluorocobaltate(III) has to be written.

Q: What is the chemical name for NiBr2?

A: NiBr2 is the inorganic compound. it is a yellow-brown solid which dissolve in water to give…

Q: What Characteristics of the nitrogenous minerals makes them suitable to be used as fertilizers?

A: Given : We have to tell what all are the properties of nitrogenous minerals to make it suitable for…

Q: You started your preparation of common alum with 1.4971 g of aluminum foil. What is the theoretical…

A: Formula of alum is KAl(SO4).12 H2O Molar mass is 474.38 g/mol We have to calculate theoritical…

Q: MCQ 104: When calcium oxide is burned with clay its makes A. cement B. steel C. calcium carbonate D.…

A: Cement is formed when calcium oxide is burned with Clay .  clay( SiO2)  is used as a binder.

Q: If you began with 24 moles of Fe203, approximately how many moles of pure iron would be formed as a…

A: Given :-  2 Fe2O3 + 3 C ----> 4 Fe + 3 CO2  Number of moles of Fe2O3 = 24 mol  To calculate :-…

Q: Write the equation below for the reaction that occurs when a solution containing NiCl2 reacts a…

A: Given :  Mg(s) + NiCl2(aq) →  To complete :-  The given reaction

Q: The most expensive material in the world because of the difficulty in isolating it, is/are ____:…

A: Material is expensive due to its rarity and method by which such material is obtained.

Q: Vandium (V) selenide formula

A: Oxidation state of Vanadium is V (five) in Vandium (V) selenide.

Q: What are Inclusion compounds? Draw an example.

A: Compounds are composed of one or more molecules or contains different atoms in different…

Q: Write the balanced equation for the reaction that occurs between potassium sulfide and copper(II)…

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Q: Why Potassium cyanide (KCN) is added in the limit test of lead?

A: In the limit test of Pb (lead), the reaction of lead with dithizone (diphenyl thiocabazone) in an…

Q: Hydrochloric acid (HCl) was added to potassium iodate crystals (KIO₃) which had previously been…

A: Here Aluminium also takes part in the reaction.  This is an oxidation- reduction reaction Here KIO3…

Q: The first active ingredient for ignitable matches was made from: a. carbon components b. sugar…

A: To explain the first active ingredient for ignitable matches made from : a) Carbon compounds  b)…

Q: 5.Explain how the sodium fusion test is used to determine whether or not an unknown organic compound…

A: preparation of sodium extract:  In this test, these elements are converted to water soluble sodium…

Q: Which of the following is the chemical formula of Gold(III) oxalate pentahydrate? Gd(C204)3*(H2O)5…

A: Given that : We have to identify the formula of Gold(III) oxalate pentahydrate out of the following…

Q: WHAT IS THE USE OF SULFURIC ACID IN DETERMINATION OF IRON IN DIET SUPPLEMENT TABLETS?

A: Iron is used as supplement in body building builder . The iron (Fe) form ferrous sulphate (FeSO4).…

Q: What chemical is described as 1MH2SO4?

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Q: MCQ 176: The process of decomposition of calcium carbonate (CaCO,) and formation of calcium oxide…

A: Decomposition reaction of CaCO3 is, CaCO3 ----> CaO + CO2

Q: how do iron-54 and iron-56 differ from each other?

A: Iron-54 means its mass number is 54. The atomic number of iron (Fe) is 26. The mass number is the…

Q: An amount of pore gypsum was calcined at 200°C. After that, 1000 kg of the product was mixed 150 kg…

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Q: Chemistry Explain why manganese which has an average minimum exploitable grade of 35% has a higher…

A: The concentration factor is defined as the ratio of average concentration of an element in a mineral…

Q: What is Compound 4? CH,CI / AICI, Cl2 / FeCl, CH,MgBr H20 4 OH LOH он но CI CI A B D

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Q: If the lead can be extracted with 92.5%% efficiency, what mass of ore is required to make a lead…

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Q: [Review Topics] [References] An experiment was run to demonstrate that a dynamic equilibrium exists…

A: Given : special form of Cobalt tetrachloride complex.  To find : structures of equilibrium is not…

Q: In the sodium metal test, what is the purpose of adding anhydrous calcium sulfate?

A: Drying agents (also called desiccants) come in various forms and have found widespread use in foods,…

Q: Consider the following reaction where an excess of water was used. AICI3(s) + 3H2O(1) - Al(OH)3(?) +…

A: Answer:- This question is answered by using the simple concept of chemical reaction of aluminium…

Q: Using coefficients from the balanced equation, calculate the number of grams of potassium chlorate…

A: Mass  of  C12H22O11 = 4.1 g  Mass of potassium chlroate = ?

Q: Which of the following will react with silver nitrate to produce a white precipitate? CI NH2 OCH3…

A: Benzyl chloride gives a white precipitate,. In this reaction we must neutralize the excess hydroxide…

Q: Boiled lobster syndrome” is seen in poisoning with: A. Boric Acid B. Oxalic Acid C. Sulfuric Acid…

A: Poisoning is a condition when a toxic substance enters the body.   The oxidizing agent is the…