QI: A chemical reaction has a reaction enthalpy of +430 kJ/mol. Is it endothermic or exothermic? Exothermic Endothermic Q2: Which of the following is the best definition of an exothermic reaction? A A reaction that is accelerated by cooling BA reaction that gives out heat A reaction that is accelerated by heating igwa uses cookies to ensure you get the best experience on our webisite earn more about our Privacy Policy ACCEPT e W eR INgs E A reaction that absorbs heat Q3: A chemical reaction has a reaction enthalpy of -512 kl/mol. Is it endothermic or exothermic? A Endothermic B Exothermic

Q: A 7.37 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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Q: Which of the following does NOT describe an exothermic reaction? Heat is released from the reaction…

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Q: Consider these reactions: Reaction 1: H2 (9) + Cl2 (g) → 2HC1(9) AH=-184.6 kJ %3D Reaction 2: 20F2…

A: ->If ∆H = +ve => reaction is endothermic reaction ->if ∆H = ,-ve => reaction is…

Q: H. meye ment in Natu molenla and thus it i polan in nature . 11. When someone is injured, responding…

A: Precipitate of PbCl2  will be formed.

Q: Choose whether the following statement is ENDOTHERMIC or EXOTHERMIC: A flask containing a reaction…

A: Reaction can be of two type : Endothermic and exothermic.

Q: A 7.03 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: We know during the process of any reaction, heat gained  = heat lost . For above the formula used…

Q: The meals-ready-to-eat (MREs) in the military can be heated on a flameless heater. You can purchase…

A: Given: Volume of water = 25 mL of water density = 1.00 g/mL Temperature change= from 25 °C to 85 °C…

Q: C (s) + 02 (g) → CO2 (g) AH° = -393.5 kJ Calculate the heat change if 2.54 g of C is reacted.

A: The given reaction is: C(s)+O2(g)→CO2(g)       ∆H°=-393.5 kJ Calculation of no. of mol of C: No. of…

Q: Use the following equation to answer the question. PCI5 PCI3 + Cl2 + Heat ---> Which of the…

A: As per Le Chatelier's principle, if any change is made in a chemical reaction like concentration of…

Q: Champagne is poured cold into cold glasses because it would go "flat" (dissolved CO2 bubbles come…

A: The question is based on dissolution of gas. it also involves the application of le- chatelier…

Q: "Heater meals" are precooked meals that come with a water-activated heating mechanism.  One way to…

A: The reaction given is Mg(s) + 2 H2O(l) → Mg(OH)2(s) + H2(g)

Q: c) HCI (3) ii) Conversion of ice into water is an example of.. d) NH3 .....reaction. a) endothermic…

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Q: The meals-ready-to-eat (MREs) in the military can be heated on a flameless heater. You can purchase…

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Q: Consider these reactions, where M represents a generic metal.…

A: Answer:  We have to calculate enthalpy of formation of the given reaction.

Q: The generic reaction X2(g) + Y2(g) → 2XY(g) has an enthalpy of -212 kJ. How many moles of XY were…

A: Given, Chemical Reaction : X2(g) + Y2 (g) ---> 2 XY (g)  ∆H = -212 KJ

Q: Two aqueous solutions, Solution A and Solution B, are mixed together in a beaker, and the following…

A: When two or more substances combine to form new substances,a chemical reaction is said to occur.…

Q: Which of the following represents an exothermic chemical reaction? O CO2 (g) breaking into C (s,…

A: Exothermic reaction are those in which heat is released. For exothermic reaction ∆H is negative.

Q: A certain chemical reaction releases 11.6 kJ/g of heat for each gram of reactant consumed. How can…

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Q: From the following reactions, determine the reactions that are exothermic. (i) F(g)+e¯ →F¯(8) (ii)…

A: i) F (g) + e- ------> F- (g) Electron affinity is defined as the amount of energy released by…

Q: chemical reaction has a negative enthalpy of reaction (-ΔHrxn) What does this tell you about the…

A: We have to find which option is correct

Q: From the following reactions, determine the reactions that are exothermic. (i) F(g)+E¯→F"(g) (ii)…

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Q: Consider these reactions, where M represents a generic metal.…

A: In-order to find the enthalpy change of the desired reaction, the given reactions has to be written.…

Q: exothermic Is this reaction exothermic, endothermic, or neither? O endothermic O neither If you said…

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Q: The chemical reaction CaO + H2O Ca(OH)2 is exothermic. This means that: O A. the reaction releases…

A: When a chemical reaction proceeds, older bonds breaks, and new bonds will forms. A chemical reaction…

Q: 2 SO2 (g) + 2 H2O (1) > 2 H2S (g) + 3 O2 (g) AHrxn 1124 mol a. Is this reaction exothermic or…

A: (a) ∆Hrxn  is basically the change in enthalpy of reaction , if ∆Hrxn is positive it means that…

Q: 3. A log burns in a fireplace, warming the room. Is this an exothermic or an endothermic reaction?…

A: When a log is burning in presence of oxygen, it evolves heat. Acid base reaction where one axid…

Q: An exothermic reaction has A) has a negative ΔH and absorbs heat from the surroundings. An…

A: Based on enthalpy change involved in the reaction , chemical reactions can be classified into two…

Q: Is dissolving AgNO3 in water an exothermic or endothermic process? What about dissolving MgSO4 in…

A: A chemical reaction in which heat energy is released is called exothermic reaction. Enthalpy is…

Q: A list of the calorie content of foods indicates that a cup of frozen strawberries contains 224…

A: Change 224 calory to Joule and KJ

Q: Balance the following reaction and then answer the questions. _____P4O10 + _____H2O → ____H3PO4 +…

A: A balanced chemical reaction include equal number of atoms towards the reactant and product side.…

Q: 8CO2(g) + S13N4(s) AH = +461.05 kJ 8CO + 2N20 + 3SIO2 a) Is this reaction exothermic or endothermic?…

A: a.) Type of reaction acb be determined form sign of ∆H of reaction.  b.) The type of reaction can be…

Q: For the reaction: 2 CH3OH(1) +3 Ozle) → 2 CO2) +4 H2O(1) + 347 kcal 3 a. Is the reaction endothermic…

A: Given reaction is :  2CH3OH (l) + 3O2 (g) ---------> 2CO2 (g) + 4H2O (l)  +347 kcal  (a). Is the…

Q: Use the set of three reactions shown below to answer the questions that follow.2NO(g) + O2(g) →…

A: The number of moles for a given compound or a molecule can be defined as the ratio of the mass to…

Q: 4. The reaction: 4 Al (s) + 3 02 (g) → 2 Al203 (s) ; AH° = -3351 kJ Is and therefore heat is by the…

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Q: Consider the reaction below then answer the following questions. The molar mass of C3H8 = 16.01…

A: C3H8 (g) + 5 O2 (g) à 3 CO2 (g) + 4 H2O (l)    ∆H = -2220 kJ   The exothermic reaction will always…

Q: When someone is injured, responding medical personnel may use either hot packs or cold packs to…

A: Cold packs are made up of water and a solid compound usually ammonium nitrate and these both are…

Q: Which statement about the reaction illustrated in the diagram is true? (B) (A] (C) (D) O The energy…

A: Which statement is true?

Q: Part D: Enthalpy change for the neutralization reaction of CH3COOH(aq) and NaOH (aq) 1. Mass of…

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Q: What is true about an exothermic reaction? 1. The reaction gives off heat and the surroundings cool…

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Q: Is the reaction of ClF(g) + F2(g) → ClF3(g) endothermic or exothermic?

A: The given reaction is  ClF(g) + F2(g) → ClF3(g) To Find: Whether the reaction is endothermic or…

Q: 4 Al (s) + 3O2 (g) → 2 Al2O3 (s) ΔHo = -3351 kJ/mol Consider the following statements about the…

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Q: Draw an enthalpy diagram for the following reaction: N2(g) + O2(g) → 2NO(g) ΔH = 180 kJ Be…

A: An enthalpy diagram for the following reaction has to be drawn. N2(g) + O2(g) → 2NO(g)

Q: When 26.6 g of potassium chloride dissolves in 300.0g of water, the temperature drops from 26.1…

A: Chemical equation for solid potassium chloride dissociating into ions when it dissolves in water is…

Q: ndothermic reaction a. The reaction absorbs heat. b. The amount of enthalpy change is-140 Kj c. Ha +…

A: 1)  a) the reaction absorbs heat = endothermic  reaction. (In endothermic reactions ,the heat is…

Q: What mass (in g) of fructose, when having undergone complete combustion, will release 6.13 x 102 kJ…

A: Combustion is the process in which carbon compound get oxidized into carbon dioxide and water and…

Q: C3H8 + 5O2 → 3CO2 + 4H2O + 2210kJ Classify this reaction as endothermic or exothermic.…

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Q: The potential energy diagram for a reaction starts at 380 kJ and ends at 100 kJ. What type of…

A: When reactions occur there are two possibilities that can occur: When the energy of the reactant is…

Q: f) An reaction is one that gives off heat. g) The amount of energy required to raise the temperature…

A: " Since you have posted a question with multiple sub-parts , we will solve first three sub-parts for…

Q: PLEASE help me What is an exothermic Reaction? What is an endothermic reaction?

A: Endothermic reaction: In an endothermic reaction , heat is required for the reaction to occur.…

Q: The chemical reaction CaO + H2O → Ca(OH)2 is exothermic. This means that: O A. the reaction releases…

A: The given reaction is : CaO + H2O ---------------> Ca(OH)2  Given this reaction is an exothermic…