The reduction of a molecule or of an ion results in   Choose one from the following: (A) the loss of positive charges due to the addition of one or more electrons (B) the loss of negative charges due to the removal of electrons

Q: The reaction of lithium with sulfur is similar to that of sodium with sulfur. Write the balanced…

A: Write the balanced chemical equation for the reaction of lithium with sulfur. Include phase symbols.

Q: In an experiment to determine the energy content of a food, a sample of the food was burned in an…

A: Given that a current of 1.27 A was flowed through the calorimeter for 157 s. Heat capacity can be…

Q: Which number represents the enthalpy change in the reaction? Reaction Coordinate Potential Energy

A: The potential energy graph explains the energy change that occurs during a chemical reaction. This…

Q: What is the electrostatic potential energy between an electron and a proton that are separated by 80…

A: The electrostatic potential energy between an electron and a proton is calculated as,

Q: In a calorimeter experiment, NaOH and HNO3 underwent a neutralization reaction and produced…

A: Neutralization reactions are generally exothermic and thus ΔH is negative.

Q: Calculate the standard reaction enthalpy (AH° ) in kJ of the following reaction using the standard…

A: The question is based on concept of chemical thermodynamics. we have to calculate enthalpy of the…

Q: What is the enthalpy of formation of the reactants? Enh = 2 ( -268.8 ) + 25 ( 0 ) =

A:

Q: Among the elements B, Al, C and Si(a) Which has the highest first ionization enthalpy?(b) Which has…

A: (a) Which has the highest first ionization enthalpy? Carbon The reason for this is Carbon is having…

Q: (a) What is the electrostatic potential energy (in joules) betweenan electron and a proton that are…

A: (a) The formula for calculating the electrostatic potential is shown below. where the variables…

Q: Consider the reactions: A→2B ΔH1 2B→3C ΔH2 What is ΔH for the reaction A→3C ?

A: According to the Hess’s Law Irrespective of number of steps the total enthalpy change of a reaction…

Q: ΔH = +572 kJ for the decomposition of water by the reaction 2 H2O() → 2 H2(g) + O2(g). How many…

A: Number of moles decomposed = Heat given/Molar heat of decomposition Mass = Number of moles x molar…

Q: What is the electrostatic potential energy between an electron and a proton that are separated by 53…

A: The electrostatic potential energy between an electron and a proton is calculated as,

Q: calculate the reaction energy of the following reactions and then determine if they are endothermic…

A:

Q: ttps://app.101edu.co Question 9 of 20 Write a balanced chemical equation based on the following…

A: The balanced chemical equation is the chemical equation in which the number of atoms for each…

Q: enthalpy of formation of

A:

Q: What is the standard heat of reaction at 800 °C for complete combustion of liquid ethanol to carbon…

A: We can't calculate heat of reaction directly without any information.

Q: If 100.0 g of iron (s.h. =0.446) absorbs 12.5 kJ, how much will its temperature increase?

A: Given: mass of iron (m) = 100.0 g specific heat of iron (C) = 0.446 J/goC Heat absorbed (q) = 12.5…

Q: Please Si, Ne, Cl, and K in order of increasing electron affinity as an Exothermic process

A: Electron affinity is the minimum change in energy of a gaseous neutral atom when an extra electron…

Q: Calculate the ΔH of formation of magnesium nitrate: Mg(s) + N2(g) + 3O2(g) ---> Mg(NO3)2(s)

A: For the given reaction :- Mg(s) + N2(g) + 3O2(g) ---> Mg(NO3)2(s)  ∆H0 yxn = - 790.7 kJ/mol Here,…

Q: The standard molar enthalpy of formation of calcium carbonate (CaCO,) is –1206.9 kJ/mol What will be…

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

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A:

Q: Why does the ionization enthalpy gradually decreases in a group?

A: In a group of the periodic table,         The atomic size increases from top to bottom.         The…

Q: write a balanced chemical reaction for the reaction of zinc with iodine, assuming that zinc and…

A: Both zinc and iodine are in solid form which means they exist as Zn and I2

Q: How many kilojoules of heat will be released when exactly 1 mole of manganese, Mn, is burned to form…

A: The chemical reaction for the burning of Manganese can be written as follows: 3Mn + 2O2 →Mn3O4  The…

Q: This thermodynamic cycle describes the formation of an ionic compound MX from a metal element M and…

A: As according the graph- Heat of formation = -250 KJ/mol Enthalpy of sublimation= 250 KJ/mol Bond…

Q: 43. AH for the reaction, IFs → IF3 + F2 is _

A: Given reactions IF5= IF3+F2. ∆H=-390kJ--------- assume it as equation 1. IF+2F2=IF5 ∆H=-745…

Q: Determine the energy associated with each of these processes in order to recycle 1.26 mol Cu. The…

A: Total energy required = heat required to raise temperature of Cu from 250C to 1084.50C (q1) + heat…

Q: こHっ ()is -45.9kJ-mol-! A H° =?

A:

Q: Write chemical equations for each of the following chemical and physical processes: - Combustion of…

A: (i) Combustion of CH3OH 2CH3OH(l) + 3O2 (g) --->2CO2 (g) + 4 H2O (l) (ii) Thermal decomposition…

Q: 3. Explain why the standard enthalpy of formation of carbon in

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

Q: 3. For the following reactions, Identify the unknown, the ?, and circle the change for each of the…

A: The answers are given below

Q: How many grams of MgO produced during an enthalpy change of -231 kJ ? are

A: Given : ∆H = -231kJ  To calculate : mass if MgO (in g)/ mass = moles × molar mass  molar mass of MgO…

Q: The ionization enthalpies of group 15 elements are higher than those ofcorresponding members of…

A: The ionization enthalpies of group 15 elements are higher than those of corresponding members of…

Q: How much heat is evolved upon the complete oxidation of 6 g of aluminum at 25°C and 1 at pressure? (…

A:

Q: The following reaction occurs under which condition(s)? either heat or light O b. heat O c. light

A: This reaction is proceed by light.

Q: Provide the values for STP.

A: STP means standard temperature and pressure.

Q: Using the following equations, N,04(g) 2NO,(g) AH° =+57.93 kJ 2NO(g) + O,(g)– 2NO,(g) AH° = -113.14…

A:

Q: What is the electrostatic potential energy (in joules) between an electron and a proton that are…

A: The electrostatic potential energy between two charge is calculated by the coulomb’s law. The…

Q: Calculate the standard enthalpy change for the following reaction conducted at 25°C: 2MGO(s)→ 2Mg(s)…

A:

Q: Arrange the following elements in order of decreasing innovation energy In, F, Si, N, Ga

A: Note: It will be ionization energy and not innovation energy. To determine: Arrangement of element…

Q: Calculate the standard enthalpy of formation of NH3(9)

A:

Q: How many kilojoules of energy would have to evolve from this reaction if the total mass of the…

A:

Q: What is the most reactive, second most reactive, second least reactive, and least reactive out of…

A: The reactivity series, which is also known as activity series is a series of metals, in order of…

Q: What is the heat of formation of FeO, based on the data

A:

Q: 8 The net potential energy between two adjacent ions, EN, may be represented by the sum of Equations…

A:

Q: Calculate the standard enthalpy change for the reaction at 25 ∘C. Standard enthalpy of formation…

A: Given reaction is : HCl(g) + NaOH(s) ⟶ NaCl(s) + H2O(l)