8Fe + S8 → 8FeS How many grams of iron are needed to react with 3.00 g of sulfur?

Q: Writè a balanced chemical equation for: Solid iron reacting with gaseous oxygen to form solid…

A: Balanced  chemical equation  Iron oxide formation  from Iron reaction  with  oxygen  gas. According…

Q: 4. Calculate the mass of oxygen produced from the decomposition of 75.0 g of potassium chlorate.…

A: Applying concept of limiting reagent and mole concept.

Q: What is the balanced reaction for the synthesis of one mole of nitrogen trioxide gas from its…

A: Given: synthesis of one mole of nitrogen trioxide  To find : Balanced Reaction Solution: Balanced…

Q: A hypothetical reaction is shown below:   AB4 + CD2 + E2 → AC + 2B2DE   Calculate the mass of…

A:

Q: The energy diagram shown represents the chemical reaction between solid ammonium c octahydrate:…

A: The heat absorbed is to be calculated

Q: 2. Calculate the volume of O2(g) that must be supplied to completely burn 20.0 L of CH4 (g). CH4 (g)…

A: The given reaction is, CH4(g) + O2(g) → CO2(g) + 2H2O(g)

Q: How many moles of CO2 are emitted into the atmosphere when 28.6 g C8H18 is burned?

A: Given  Mass of C8H18   = 28.6 gram  Moles of CO2    = ? Number of mole of C8H18  = massMolar mass…

Q: What mass of ammonia can be made from 20.0 g of hydrogen? 3H₂+ N₂ → 2NH₃

A:

Q: What mass of water is produced from the complete combustion of 3.70×10−3 g of methane?

A: Given, mass of methane (CH4) react = 3.70 × 10-3 g mass of water (H2O) produced = ? Note: molar mass…

Q: One method used in the eighteenth century to generate hydrogen was to pass steam through red-hot…

A: Given that, a reaction is 3Fes+4H2Og→Fe3O4s+4H2g. The molar masses are Fe = 55.845 g/mol, H2O =…

Q: In this reaction, if 12 g of aluminum oxide are consumed, how many grams of oxygen gas are produced?…

A: Balanced chemical equation: 2 Al2O3 → 4 Al + 3 O2  Moles of Al2O3 = given massmolar mass=12102mol…

Q: This is a double replacement reaction.    2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(g)   True False

A: Answer:When solutions of two different substances are mixed and formation of precipitate takes place…

Q: What type of reaction is this? 2K(s) + Cl:(g) → 2KCI(s) * Synthesis Decomposition Combustion Single…

A: A reaction takes place the starting compounds react under suitable conditions and produce new…

Q: What mass of oxygen is needed for the complete combustion of 3.70×10−3 g of methane?

A:

Q: how many moles of oxygen are required to burn 8.0 g of methane?

A: number of moles = mass/molar mass  molar mass of CH4 = 16 g/mol

Q: If one ounce (28.4g) of butane is burned completely, what mass of CO2 is formed?

A: When butane (C4H10) is burnt then following reaction takes place 2C4H10 + 13O2 -> 8CO2 + 10H2O

Q: How many moles of CO2 are required to make 120.0g of glucose?

A: Given :- mass of glucose = 120.0 g  To calculate :- number of moles of CO2 required.

Q: If you start with 0.985 grams of copper wire, what mass of gas should be formed in the reaction?…

A: Given :- Cu  +  4 HNO3  → Cu(NO3)2 +  2 NO2  +  2 H2O  Mass of Cu = 0.985 g  To be calculated :-…

Q: From the reaction: B2H6 + O2  HBO2 + H2O What mass of O2 will be needed to burn 36.1 g of B2H6?

A: The reaction given is, => B2H6 + O2 --------> HBO2 + H2O Balancing : Since we have 2 B in LHS.…

Q: What mass of oxygen is needed for the complete combustion of 2.40×10−3 g of methane?

A: The balanced chemical equation for the combustion of methane is given below.CH4 + 2 O2 --> CO2 +…

Q: Balance the following equation. (Fill in the blanks with the correct numbers. If necessary, do place…

A: Balance reaction has the same number of atoms of element on the reactant and product side. If the…

Q: What mass of CO2 can be produced by the complete combustion of 2.00 kg of octane, C8H18, a major…

A: Balanced chemical equation for the reaction ids given below.

Q: What type of reaction is represent by the equation: C,H12 + 902 → 6CO2 + 6H20

A: The reaction shown is burning of alkane in air to produce carbon dioxide and water .

Q: What mass of water is produced from the complete combustion of 2.40×10−3 g of methane?

A: The mass of water produced from the complete combustion of 2.40×10−3 g of methane is calculated as,

Q: The reaction of carbon dioxide to form carbon monoxide and oxygen is what type of reaction?…

A: Given reaction -: 2CO2(g) → 2CO(g) + O2(g)What type of this reaction

Q: Write a balanced chemical equation based on the following description: solid sodium reacts with…

A: The objective of the question is to write a balanced chemical equation for the reaction of solid…

Q: Octane has a density of 0.703g/ml. Calculate the mass of CO2 produced by burning one gallon of…

A: Density of octane = 0.703 g/ml  Volume of one gallon = 3.79 L  Mass of CO2 produced by burning one…

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

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

Q: Consider the following reaction: Fe2+ (aq) + 2Cl¯ (aq) →→→→Fe(s) + Cl₂ (g) To make this reaction…

A:

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.