Below are the choices for every item. Answer it correctly. A. Used in control rods of nuclear reactors? B. Formed from heating wood in the absence of air? C. A non-crystalline form of carbon with the highest C-content? 1. Amphibole 2. Anthracite coal 3. Boron 4. Carborundum 5. Carbon 6. Charcoal 7. NaNO2 8. N20 9. Ozone 10. Phosphine

Q: . Explain the chemical steps needed to soften water that has carbonate and non-carbonate hardness…

A: The water has, hardness due to various ions and other chemical species presents. However, some…

Q: The analysis of a mixture established that it contains 32.55% Fe203 and that the per cent loss in…

A: percent on dry basis = mass of substance/ mass of dry solid x 100

Q: Using standard enthalpies of formation is an indirect method of determining the standard heat of…

A: The answer is based on the validation of Hess's law.

Q: In reactive distillation, does the reaction preferably take place in the vapor or in the liquid…

A: The phase of the reaction in the reactive distillation process is to be mentioned.

Q: 4. How many grams of ethylene glycol (C2H602) must be added to 1.00 kg of water to produce a…

A: Mass of water, mW = 1.0 kg Final temperature of the solid solution, Tf = -5.0°C

Q: What happens when a small amount of sodium hydroxide is added to a mixture of ammonia and ammonium…

A: The given mixture of ammonia and ammonium chloride is a buffer solution.

Q: When a compound is formed which undergoes decomposition with formation of another solid phase at a…

A: After analysis the fighure ; when compound C formed, the mol% of B is around 25% and the mol% pf A…

Q: 3.138 A sample of 10.0 g of sodium reacts with oxygen toform 13.83 g of sodium oxide (Na2O) and…

A: Given: Mass of sodium that reacts with oxygen is MNa = 10 g The mass of product formed is MP =…

Q: Give the properties of Sulfuric Acid

A: Acids are compounds that have H+ ions upon ionization. Their pH will range from 1-7 on the pH scale.…

Q: How much maltose reacts with molecular oxygen to release 8900kJ to the surroundings?

A: We are asked to find the amount of maltose reacts with the molecular oxygen to release 8900kJ to the…

Q: A radioactive element in the halogen group is

A: In the given problem, the radioactive element of halogen group is to be identified.

Q: Addition

A: Identification of an unknown white powder though various tests

Q: food items weighing 30 kg initially have a moisture content of 450% (dry basis). This material is…

A: Mass = 30kgInitial Moisture content = 450% (wet basis)Final moisture content = 20%To find: The mass…

Q: At what temperature does carbon dioxide have a solubility of 0.20 g/100 g water?

A: Carbon dioxide is an acidic, colorless gas that is heavier than dry air. The solubility of a solute…

Q: What technologies can make coal a cleaner fuel?

A: Coal is one the dirtiest fuel.It is needed to clean the fuel to use.

Q: When light with a wavelength of 186 nm strikes the surface of tin metal, electrons are ejected with…

A:

Q: Why does a chemical reaction happen when you add water to a potassium chlorine mixture

A: A chemical reaction is the process of converting chemical substances into new ones. A chemical…

Q: Why is sulfur an undesirable impurity in a fuel?

A: Reason-In fuel sulphur is considered as undesirable impurity.

Q: Why is electricity more dangerous in a wet weather? Kindly provide some chemical reactions involved.

A: In general, pure water is bad conductor of electricity but the normal water sample have minerals…

Q: Ultimate analysis "as combustible" or "moisture and ash free" C = 82.88%; H₂ = 5.38 % ; O₂ = 6.48 %;…

A:

Q: A silvery-white, lightweight malleable metal is used in a huge variety of products including cans,…

A: Mass of the aluminum oxide = 8.25 × 105 g Mass of carbon = 7.5 × 105 g Yield of reaction = 35 %

Q: Build the phase diagram for the nickel - copper alloy. Temperature of Crystallization , C Initial…

A: The phase diagram is a graphical representation of the physical states of a substance under…

Q: NAME OF CHEMICAL PERCENTAGE USES COMPOUNDS FORMULA COMPOSITION a. Acetone b. Toluene c. Ammonia

A:

Q: Determine if sodium metal and water are incompatible. If they are incompatible, state the hazardous…

A: Sodium belongs to the group of alkali metals known for their highly reactive nature. Sodium readily…

Q: 4. Name two distinct physical methods that can be used to decontaminate groundwater?

A: Contamination is described as the presence of a constituent, impurity, or some other undesirable…

Q: What is this reaction called during a slow cooling process of steel alloy ?

A:

Q: The following are streams in hydrotreating process. Identify which of the streams are feed or…

A: Hydrotreating Unit - This unit is used to remove impurities like sulfur, nitrogen etc.

Q: Explain how low octane naphtha is converted into high-quality motor fuels ?

A: low Octane naphtha Converted to high quality motor fuel  by continuous Catalytic and reforming unit.…

Q: Obtain the combustion equation for C3H8 (Propane) being burnt with 200% excess air.

A: To Obtain the combustion equation for C3H8 (Propane) being burnt with 200% excess air

Q: 4. A kiln is used to calcine a limestone analyzing 52% CACO3 , 30% MgCO3 , 5% Al,O3, 4% inerts, 6%…

A:

Q: How much maltose reacts with molecular oxygen to release 8900 kJ to the surroundings?

A: C12H22O11 + O2 ---------> CO2 + H2O  ----------------> (1) (Maltose) + (Oxygen)  -------------…

Q: 20 kg of foodstuff initially has a moisture content of 450% (dry basis). This material is dried to a…

A: Given Data : Mass of food sample = 20 Kg  Initial moisture content of food sample (Xi) = 450% Final…

Q: In a reactor 300 moles of butane are placed with 2000 moles of oxygen, determine the % of excess air…

A:

Q: Aluminum bromide is insoluble in cold water. * O True O False

A: Aluminum bromide is insoluble in cold water. True False

Q: Methanol, or wood alcohol, is the combustible material used in sterno. Write a balanced equation for…

A: It is required to determine the complete oxidation reaction that occurs when methanol burns in air.