Part a) When FeS3 • 2H2O is heated, it gives off water, SO2 and Fe2O3. Is this a chemical or physical change? When CuSO4 • 5H2O is heated, it gives off water and CuSO4. Is this a chemical or physical change? Which of these changes can be easily reversed? Part b) Is the molar ratio of the products is different from the molar ratio in the hydrate formula, has a chemical or physical change taken place?

Q: A favorite demonstration among chemistry instructors, to show that the properties of a compound…

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Q: Enter your answer in the provided box. One of the reactions that occurs in a blast furnace, in which…

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Q: Combustion of hydrocarbons such as nonane (C,H20) produces carbon dioxide, a "greenhouse gas."…

A: The balanced equation for the combustion of octane is   C9H20 (l)+ 14 O2 (g)------------> 9 CO2…

Q: The overall reaction for the production for ammonium nitrate is N2+3H2+2O2->NH4NO3+H2O What mass…

A: 1.00 kg of H2 along with N2 and O2 that produces NH4NO3 and H2O.

Q: a. What mass is represented by 0.0146 mol of C3H7OH (2-propanol, rubbing alcohol)? Mass %3D b. What…

A: a). Given: The moles of C3H7OH = 0.0146 mol. The molar mass of C3H7OH = 60.09 g/mol.

Q: Which of the following models of a chemical reaction BEST represents the law of conservation of…

A: The law of conservation of mass states that the total mass is conserved during the chemical…

Q: References] Aspirin, CH4(0COCH3)CO,H, is produced by the reaction of salicylic acid, C,H4(OH)CO,H,…

A: The mass of salicylic acid and acetic anhydride is 100.0 g. The given chemical reaction is,…

Q: Liquid methane (CH4). and liquid oxygen (02) are used in some rocket engines. What is the mass of…

A: Given  Mass of CH4   = 500000 gram Mass of O2    = 150000 gram  Mass of CO2  = ?

Q: NA+Cl2->NaCl is the balanced reaction for the formation of table salt. Given 20 grams of Na and 10…

A: Data given  Weight of Na = 20 g Weight of Cl2 = 10 g Data required Molecular weight of Na = 23 g…

Q: Aspirin can be prepared from salicylic acid ( C7H6O3), which has a molar mass of 138.12 g/mol, and…

A:

Q: If a reactant A and reactant B form products C and D, which of the following statements is correct?…

A: Law of conservation of mass: "The mass in an isolated system can neither be created nor be destroyed…

Q: The smell of a burning match is due to the formation of sulfur oxides. We can represent the relevant…

A: The given reaction is: S+O2→SO2......(1) The mass of sulfur burned is 4.8 g.

Q: Combustion of hydrocarbons such as methane (CH) produces carbon dioxide, a "greenhouse gas."…

A: Two questions based on combustion of Methane, which are to be accomplished.

Q: In the experiment, why is the mass of the test tube and reaction products less after heating than…

A: Given: In the experiment, the mass of the test tube and reaction products were less after heating…

Q: Now on to something new: it's not just fossil fuel hydrocarbons, alcohols also burn completely away…

A: The given equation is  2CH3OH (l) + 3O2 (g)  ....> 2CO2 (g)+4H2O(l)  From the balanced reaction…

Q: An experiment is designed to determine the mass percent of sulfate in an unknown soluble sulfate…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: The reaction of coal and water at a high temperature produces a mixture of hydrogen and carbon…

A: Calculate the number of moles of CO. The molar mass of CO is 28 g/mol.

Q: Write the balanced chemical reaction that occurred, including states such as solid (s) or aqueous…

A: The balanced chemical equation is the process in hich we make the number of atoms in both reactant…

Q: When magnesium hydroxide reacts with nitric acid, it produces magnesium nitrate and water. g(OH)2 +…

A: We need to explain how a balanced chemical reaction prove the conservation of matter in reaction.

Q: Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the following…

A: Given Chemical Reaction: 2NH3 + 3O2 +2CH4 -------> 2HCN +6H2O. To solve this problem we will be…

Q: When mixed in the presence of water, the elements Zn and I2 react to produce the compound zinc…

A: Consider the given reaction. Zns+I2s→ZnI2aq

Q: Aspirin can be prepared from salicylic acid (C,HO3), which has a molar mass of 138.12 g/mol, and…

A: Calculate moles of Salicylic acid- Mass = 2.25 g Molar mass = 138.12 g/mol Therefore, Moles of…

Q: Aspirin can be prepared from salicylic acid ( C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: One way to analyze for the amount of phosphorus in a rock is to precipitate the phosphorus as…

A: Given the mass of the rock sample = 2.832 g Percent of Ca3(PO4)2 = 86.52% => mass of Ca3(PO4)2 in…

Q: 5. The reaction 2C2H2(g) + 502(g) → 4CO2(g) + 2H2O(1) is a a. combustion reaction

A: Combustion reaction is the reaction in which a reactant reacts with oxygen gas to form CO2 and H2O…

Q: A pharmacist prepares an antiulcer medicine by mixing 286 g Na2CO3 with water, adding 150 g glycine…

A: Given information, 286 g Na2CO3 with water 150 g glycine (C2H5NO2)

Q: (a) What is the difference between adding subscript 2 to the end of the formula for CO to give CO2…

A: From given  Subdivision a) is solved with the relation of CO2 and CO when coefficient is added in…

Q: Combustion of hydrocarbons such as methane (CH,) produces carbon dioxide, a "greenhouse gas."…

A: Given; The combustion of methane.

Q: 05 A sample of limestone (containing calcium carbonate, CaCO3) weighing 438 mg is treated with…

A:

Q: The active ingredient in baking soda is sodium bicarbonate (NaHCO3). The active ingredient in…

A: in Balanced chemical equation number of atoms are equal on both reactent and products side,

Q: Aspirin can be prepared from salicylic acid ( C7H,O3 ), which has a molar mass of 138.12 g/mol, and…

A: Balanced chemical equation is as

Q: In a reaction, 1 mole of silver nitrate combines with 1 mole of sodium chloride. AgNO3 + NaCl…

A: This is an example of Inorganic reaction where precipitation of AgCl takes place . Details…

Q: Ammonia can also be synthesized by the reaction: 3H,(g) + N2(g) →2NH;(8) What is the theoretical…

A: Answer: 29.58 Kg is the theoretical yield of ammonia.

Q: 1. What is the mass percentage composition of capsaicin? 2. What is the percentage composition of…

A: (1) Capsaicin has Following molecular formula -  C18H27NO3  And it's Molecular mass is -  =>…

Q: Aspirin can be prepared from salicylic acid (C-H,O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: The production of ethanol for use as a fuel can be accomplished through fermentation of glucose, a…

A: The balanced reaction given is  C6H12O6(s) → 2CH3CH2OH(l) + 2CO2(g)   Hence we can say that 1 mole…

Q: In the combustion of methanol, 2CH3OH(1) + 302(g) 2CO2(g) + 4H20(g),

A: We have given that   2CH3OH(l)   +  3O2(g)    →  2CO2(g)  + 4H2O(g) How many mole of  the excess…

Q: (a) What is the difference between adding subscript 2 to the end of the formula for CO to give CO2…

A: A question based on general chemistry, which is to be accomplished.

Q: 3I2 + 6KOH → 5KI + KIO3 + 3H2O Is this a Balanced Chemical Reaction?

A: Yes it is a balanced equation. LHS = RHS.

Q: What type of chemical reaction is illustrated in the following example?  2 Mg (s) + O2 (g) ⟶ MgO…

A: The type of Chemical Reaction illustrated in the following example is -

Q: Suppose a student starts with 2.4185 g of a sand mixture and separates the components into 1.3012 g…

A: Mass percent of a component in the mixture can be calculated as the ratio of mass of component to…

Q: The molar mass of ibuprofen is 206.3 g mol-1 and a standard tablet contains 0.2 g ibuprofen.  What…

A: Given that : The molar mass of ibuprofen = 206.3 g/mol The mass of ibuprofen in a tablet = 0.2 g

Q: The equation below represents a chemical reaction that occurs in living cells. C,H,,06 + 60,– 6CO, +…

A: The question is based on the concept of reaction Stoichiometry. We have to calculate number of atoms…

Q: If 1.00 g mixture of CaCl2 and Na,CO3 are put in a beaker and 100 mL of warm water is added and…

A: The number of moles of substance is calculated by the mass of given substance divided by the molar…

Q: The fertilizer ammonium sulphate is prepared by the reaction between ammonia and sulphuric acid.…

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Q: Он OH 1. PCC, CH2CI2 2. КоН (сat), ELOH, 78 °C HO,

A: Number of functional group is associated with organic compounds which impart specific chemical and…

Q: Combustion of hydrocarbons such as methane (CH) produces carbon dioxide, a "greenhouse gas."…

A: A chemically balanced equation has equal number of atoms of each elements in the reactant side and…

Q: What is? CUSO•5H,0 Cuso '2

A: CuSO4 is a copper(II) sulfate with the oxidation state of copper to be+2. It's an inorganic…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".