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Q: What’s the percentage of lithium peroxide

A: We have Lithium peroxide (Li2O2) The atomic mass of lithium = 6.9  The atomic mass of Oxygen = 15.9…

Q: 3-The function of scientists is to while that of engineers is to O The function of scientists is to…

A: The main work of scientists is to explore the new things about the universe whereas engineers apply…

Q: • C. Decomposition

A: As there is one molecule is breaking into two molecules. So, it is Decomposition reaction.

Q: Assuming an efficiency of 25.60%, calculate the actual yield of magnesium nitrate formed from 146.3…

A: Magnesium reacts with copper (II) nitrate to give magnesium (II) nitrate and copper metal as…

Q: Balance the following chemical equation: MgO (5) + H2SO4 (aq)- MgSO4 (5) + H20 (aq) The coefficient…

A:

Q: Balance the following reaction and choose the correct set of coefficients. NiS Zn(ND,),-*ZnS + NINO…

A: The chemical equation for the reaction ought to be balanced i.e., the number of atoms of reactants…

Q: rite the net chemical equation for

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Q: Write balanced formation equations for the following, indicate proper states:…

A: we have to balance these two equations: _______________ → N2O3(g) _______________ → C2H3F(g)

Q: Mg+ 02 --> MgO 13. Balance the following equation: Your answer

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

Q: When a chemical equation is reversed, the sign of AH does not change. O True False

A: Thermochemical equation :-  A chemical equation in which heat changes are also indicated along with…

Q: Aqueous solutions of sodium chloride and silver nitrateare mixed. (The solution turns cloudy white…

A: In Balanced chemical equation number of atoms of each species are equal on both reactant and…

Q: che net chemical equation for ti

A:

Q: 1. An ore is analyzed for the manganese content by converting the manganese to Mn3O4 and weighing…

A: For the ore sample the given data are as follows: The mass of the ore sample is = 2.51 g The mass of…

Q: d balance the equation.

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Q: Ezive. reoson sodium metal is stored in kerosane

A: Given,  Metal = Sodium (Na)  Why sodium metal is stored in kerosene oil = ?

Q: Detemine if the following chemical equation is balanced Ca(NO3)2 + 2 NaCI -CaCl2 + 2 NaNOS O…

A:

Q: Balancing Equations Mn(NO,), + BeCl, → Be(NO,), + MnCl,

A: in Balanced chemical equation number of atoms of each species are equal on both  reactent and…

Q: Part C: Combination Rea C-1: Magnesium + Air (N2 and O2) a) Observations on burning magnesium metal:…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: Balance the following equation by algebraic method. Fe 02 → Fe203

A: The strategy for balancing chemical equations algebraically is as follows: Write a different letter…

Q: Balance the equation: No Spacing between coefficients and elements/compounds. Place a "1" where…

A: Balanced equation as follows

Q: Pal, pa Balance the chemical equation with the correct coefficients:

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Q: -). Balance the equation

A: 1) write the given equation 2) convert the lementary molecules into atomic state 3) select the…

Q: het lonic equation

A: Balanced equation can be written as

Q: he overall reaction

A:

Q: Iron and oxygen react chemically to form rust. What kind of substance is rust? A. Element B.…

A: Iron is 'Fe' and Oxygen is 'O'. Rust is hydrated ferric oxide, Fe2O3.xH2O

Q: An ore is analyzed for the manganese content by converting the manganese to Mn3O4 and weighing it.…

A: The mass of the ore sample is = 2.51 g The mass of the Mn3O4 is = 0.261 g The mss percent of Mn2O3…

Q: Assuming an efficiency of 23.20%, calculate the actual yield of magnesium nitrate from 146.9 g of…

A: The chemical balanced reaction between magnesium (Mg) and copper (II) nitrate is given as follows:

Q: What is the general balance chemical reaction equation of Molisch test and Benedict’s test?

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Q: Fill in the coefficients (include a 1 where appropriate or a single space) to balance this chemical…

A: Law of conservation of matter says that matter can neither be created nor be destroyed. A chemical…

Q: decomposed

A:

Q: 13. Balance the following equation: Mg + 02 --> MgO

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

Q: CH.OH+O27 ? ->

A:

Q: Fill in the coefficients (include a 1 where appropriate or a single space) to balance this chemical…

A: The correct answer is given below

Q: Assuming an efficiency of 22.00%, calculate the actual yield of magnesium nitrate formed from 124.1…

A: Given, a chemical reaction as follows,Mg+Cu(NO3)2→Mg(NO3)2+Cuamount of Mg for reaction =124.1 gand…

Q: Which of the following is not an application of colorimeter? O Paints O Inks O Cosmetics O…

A: This question of colorimeter is taken from single and double beam instrument in portion colorimeter.…

Q: [ Select ] O Li + [ Select ] O N2 → [ Select ] O LigN Balanced the unbalanced equation using the…

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Q: balanced chemical reaction: .

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Q: e a balanced equation £

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Q: Balance the equation and 51 Cr + 24 je > 1 e

A: This is a nuclear reaction and in nuclear reaction there must be mass balance and proton balance.

Q: In a pure sample of blue vitriol the Copper content is 25.45%. Calculate the new percentage of…

A: The number of moles of a substance is given by the mass of the substance upon its molar mass. The…

Q: 6.) Predict the product of the following chemical reactions and state where the product (waste)…

A: Since you have posted questions with multiple subparts, we will solve only first three subparts for…

Q: Can you balance the following chemical reaction equation? a, NO, + aHCIO aHNO, + agHCI

A: We are given an unbalanced chemical equation: NO3 + HClO ------------> HNO3 + HCl.

Q: Assuming an efficiency of 47.60%, calculate the actual yield of magnesium nitrate formed from 148.7…

A: The molar mass of magnesium (Mg) and magnesium nitrate (Mg(NO3)2) is 24.305 g/mol and 148.3 g/mol.…

Q: fa balanced chemical reaction?

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Q: e limiting reactant.

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Q: In relating the existing concepts about 'cigarette smoking' in Chemistry and Science-related RRL,…

A: The combustion reaction involves the burning of the substance in the oxygen atmosphere to yield…

Q: 149. Balance the following equation. How many lHCI are there on the left side of the balanced…

A: A balanced equation obeys the law of conservation of mass where the number of atoms remains constant…

Q: Directions: Balance the following chemical equation: 1. Fe + O2 → Fe2O3

A: A balanced chemical equation is an equation in which the number of atoms on both sides of the…

Q: (Write the balancing equations for C,H, and O.)

A: Since you have asked multiple questions, we will solve first one for you. For remaining question…

Q: Assuming an efficiency of 21.00%, calculate the actual yield of magnesium nitrate formed from 133.9…

A: Moles of Mg taken = mass / Atomic mass of Mg  Atomic mass of Mg = 24.3 g/mol Hence moles of Mg =…

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.