According to the following reaction how many grams of hydrogen would be needed to produce 5.450×10^3KJ of energy assume excess oxygen.

Q: a pair of chemical compounds A and B can react in two different ways: A+B C Reaction 1 gives product…

A:

Q: Given the chemical equation: 2H₂ + O₂ → 2H₂O, how many moles of H₂O is produced to balance the…

A: When hydrogen (H2) gas burns in oxygen (O2)  water(H2O) is produced.

Q: On your paper, write the complete balanced equation for the combustion of aluminum metal. In the…

A: Answer:- This question is answered by using the simple concept of combustion reaction which involves…

Q: Balance the following equation and determine how many moles of aluminum oxide can be produced from…

A:

Q: According to the following balanced equation, calculate the mass of needed SiCl4  to produce 3.14 g…

A: Reaction of SiCl4 with H2O to produce HCl and SiO2 . And balanced chemical equation is ,     SiCl4…

Q: Þ, (s) + NaOH (аq) + н,о () — РH; (g) + PH (g) + Na, HPО, (ag)

A: In the given reaction phosphorus reacts with sodium hydroxide to form phosphine and Na2HPO3.

Q: Nitrous acid, HNO2, is a weak acid. What is the reaction of nitrous acid in water?

A: HNO2, nitrous acid, is an acid. It releases H+ (hydrogen-ion) in water. That means, HNO2 has the…

Q: What is a chemical property of sodium?

A: Sodium is an element with atomic number 11 and represented by the symbol Na.

Q: Aluminum reacts vigorously with iodine in a synthesis reaction.  (a) Write a balanced chemical…

A: Well, to calculate the amount of product, we have to first find out the limiting reagent. and using…

Q: how much iron in kg would it take in excess oxygen to produce 1,679 g of rust?

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Q: A4 Each alkali metal reacts with water to give hydrogen gas and an hydroxide (a base). eg: lithium +…

A:

Q: Water can decompose into H2H2 and O2O2 via electrolysis. How many moles of H2H2 could theoretically…

A: 2.24 moles of H2H2 could theoretically be obtained from 80.6 g water.

Q: Write the reaction for the generation of oxygen in word form and then using chemical symbols.

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Q: How many grams of O2 will be formed from 3.76 grams of KClO3?

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Q: Which of the following is true for the reaction N₂(g) + 3 H₂(g) → 2 NH₃(g)? A) Nitrogen is oxidized.…

A: Given reaction:N2(g)   +  3H2(g)   →   2 NH3(g)

Q: How can chlorine become stable?

A: As we all know that chlorine is having 7 electron in the outer most shell. It need one more electron…

Q: What total mass of iron is necessary to produce 1.00 moles of copper?

A: The balanced chemical equation for the production of copper from iron is shown below this is a…

Q: Determine the balanced reaction for the combustion of CH3(CH2)8CH3.

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Q: The test tube containing some amount of MnO2 and the mixture of KCIO3-KCl is weighed as 7.200 g.…

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Q: How many moles of calcium nitrate are needed to produce 0.850 gram of sodium nitrate?

A: 1 mole = 6.022×1023 ( Avogadro's number ) Anything which is in the number of 6.022×1023 is called 1…

Q: The electrolysis of molten sodium chloride or of aqueous sodium chloride produces chlorine.Calculate…

A: The electrolysis of salt involves two phenomenons which are reduction and oxidation of ions of salt.…

Q: is formed from... Br NH2 N-H (A) (B) (C) (D) (E)

A:

Q: How many grams of O₂ can be prepared from the thermal de-composition of 4.27 kg of HgO? Name and…

A: Given: Mass of HgO decomposed = 4.27 kg

Q: what mass in grams of H2O can be produced from 9.00 moles of O2?

A: In the given question we have to calculate the mass in gram of H2O. the balanced equation will be  2…

Q: Balance the following chemical equation (if necessary): C:H«(g) + O2(g) –→ CO:(g) + H2O(g)

A: Balanced equation means number of atom in reactant side is equal to number of atom in product side.…

Q: How many grams of methane gas are required to produce 4.00 grams of carbon tetrachloride?

A:

Q: Accordign to the following reaction, how many grams of hydrogen gas are required for the complete…

A: The balanced chemical equation: Given data: Mass of nitrogen gas is 28.4g.

Q: When chlorine atoms react with atmospheric ozone, what are the products of the reaction?

A: Ozone is gas which has the molecular formula O3. It is found in stratosphere layer of the…

Q: What is formed when hydrobromic acid, HBr, and calcium hydroxide, Ca(OH)2, are combined

A: Given-> Reactants -> HBr , Ca(OH)2

Q: When iron rusts it forms Fe 2O 3. Name this product of air oxidation.

A: Name of Fe2O3 is Ferric oxide or iron(III) oxide. Rust is Fe2O3.xH2O . Hydrated ferric oxide is…

Q: If 1.6 oz of a fuel with a molar mass of 58 g/mol was combusted with a stoichiometric equivalence of…

A: The objective of the question is to calculate the volume of air required for the combustion of a…

Q: Based on the reaction 4 A + 2 B → 3 C what is the theoretical yield (in moles) of C if (1.65x10^1)…

A: Given data Reaction: 4 A + 2 B → 3 C from above reaction  4 mole of A react with 2 mole of B then 3…

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.