(i) Complete the energy level diagram for the thermal decomposition of calcium carbonate by writing these words on the diagram: • reactant • products. energy progress of reaction (1) (ii) Explain, using information on the energy level diagram, how you know that this reaction is endothermic.

Q: In a chemical cold pack, two substances are kept separateby a divider. When the divider is broken,…

A: In case of exothermic reaction heat is produced to the surroundings whereas in case of endothermic…

Q: When carbon disulfide, CS2, forms from its elements, heat is absorbed. How much heat would be…

A: Number of moles of carbon disulfide = 6.5 moles

Q: In an exothermic reaction, chemical energy is converted to

A:

Q: Please answer all the guide questions. Thank you! Guide questions: 1. Is the reaction exothermic or…

A: 1.)The reactions that release energy into the surroundings are known as exothermic reactions while…

Q: Which of the following processes is/are endothermic? (i) The chemical change in a hot pack often…

A: A process is said to be endothermic if it absorbs heat in the process whereas in exothermic process…

Q: hore total energy than the reactants, the AG will be and if the reactants have more total energy…

A: Delta G is given as energy of product - energy of reactant  ΔG = GProduct - Greactant

Q: (a) Calculate the kinetic energy, in joules of a 1200-kg automobilemoving at 18 m/s. (b) Convert…

A: a) The KE of the above process is given as the formula would be :     Ev=12mv2     we are given…

Q: Which of the following best explains why the combustion reactions represented in the table are…

A: Exothermic reactions are reactions or processes that release energy, usually in the form of heat or…

Q: In a large building, oil is used in a steam boiler heating system.The combustion of 1.0 lb of oil…

A: Given : Mass of water = 150 kg Convert kg into grams as follows. 1 kg = 1000 gSo, 150 kg = 150 kg ×…

Q: Calcium metal reacts with water to produce calcium hydroxide and hydrogen gas, releasing 635.1 kJ of…

A: The balanced chemical equation of calcium reacts with water is given as,

Q: Choose the endothermic process  butter turning rancid, photosynthesis of carbohydrates by plants,…

A: Endothermic processes are those in which heat is absorbed in the reaction whereas in exothermic…

Q: In chemistry, explain different types of energy and how energy is released or absorbed in a…

A: Energy is a term which can be defined as a push due to which an object can perform any work.  In…

Q: How can chemical potential energy be related to the heat lost or gained in chemical reactions?

A: Exothermic reactions are those in which heat is released and endothermic reaction are those in which…

Q: How much heat (in kilocalories) is released from the combustion of 5.00 g of ethanol?

A: The mass of ethanol given = 5.00 g The standard specific heat of combustion of ethanol is Hc = 7.1…

Q: 1621 kg car is traveling down the road at 89.4 km/h. While traveling at this rate of speed, what is…

A: The question is based on the concept of kinetic energy. the amount of energy possessed by a molecule…

Q: Can a chemical reaction ever give off more energy than was originally contained in its reactants?

A: According to law of conservation of energy, energy can neither be created nor be destroyed. It can…

Q: A home swimming pool contains 165 m3 of water. At the beginning of the swimming season, the water…

A: The amount of heat required is determined by using formula q= m c delta T

Q: When gasoline burns, it reacts with oxygen in the air and forms hot gases consisting of carbon…

A:

Q: What is meant by the term heat of reaction? What other name is a synonym for this term?

A: 1.The Heat of Reaction is the change in the enthalpy of a chemical reaction that occurs at a…

Q: Based on the law of conservation of energy, which of the following describes the transformation of…

A: Law of conservation of energy;   Energy can be neither be created nor destroyed but it can be…

Q: Hydrogen sulfide, H2 S, is produced during decomposition of organic matter. When 0.4300 mol H2S…

A:

Q: For exothermic reactions,the products have lower energy than reactants. explain why

A: The question is based on the concept of chemical thermodynamics. we have to explain why products…

Q: in the reaction, C(s)+O2(g)>CO2(g), how many moles of carbon would need to be burned in order to…

A: Given reaction is: C(s) + O2 (g) → CO2 (g)  +  Q The heat required to be produced, ∆H =500 kJ This…

Q: If the dissolution of a salt in water is an endothermic reaction, how will the temperature of the…

A: Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the…

Q: Calculate the amount of heat released from combustion of 1 g of wood

A: Please find your solution below : Note : This question requires the values of heat capacity and…

Q: If 601 J of heat is available, how many grams of iron (specific heat = 0.45 J/g･°C) can be heated…

A: The amount of available energy is = 601 J The specific heat of iron is = 0.45 J/g･°C Increase in the…

Q: How many moles of KCIO. solid must be reacted according to the following balanced chemical reaction…

A: We have to calculate the moles  of KClO3 .

Q: How much potassium nitrate has to dissolve in water to absorb 117 kJ of heat?

A:

Q: 1.7. A 225-pound athlete needs to run a distance of 546.807 yards. Solve for the energy he will…

A: Conversion of pounds to kg: 1 pound=0.4536 kg225 pounds=225×0.4536=102.06 kg Conversion of yard into…

Q: b.Calculate the specific heat (J/g C) of Aluminum,

A:

Q: How many moles of KCIO, solid must be reacted according to the following balanced chemical reaction…

A:

Q: how much heat (in kJ) is released

A: Given :- CH4(g) + 2O2(g) ---> CO2(g) + 2H2O(g).     ∆H°= -802 kJ/mol  Number of moles of CH4 =…

Q: The combustion of one mole of liquid ethanol, CH3CH2OH,produces 1367 kJ of heat. Calculate how much…

A: The chemical reaction for the combustion of ethanol is represented as:

Q: ch of the following processes as endothermic or exothermic and include the sign for AH. opyl alcohol…

A: We habe to categorise given reaction as endothermic or exothermic and tell their ∆H sign

Q: of

A: Given: 2KClO₃(s)→2KCl(s)+3O₂(g) ∆H= -89.4 kJ   Moles of KClO₃ to Librte -34.2 kJ of heat =?

Q: Classify the following reactions as endothermic or exothermic.

A: The reaction can be classified into two category namely endothermic and exothermic reactions as…

Q: Which statement correctly describes an endothermic chemical reaction? A. The products have higher…

A: First we would define Endothermic reaction then choose the correct option .

Q: How many moles of KCIOS solid must be reacted according to the following balanced chemical reaction…

A: Recall the reaction, 2KClO3(S) -------> 2KCl(s) + 3O2(g)  ∆H= - 89.4 KJ

Q: When sulfuric acid is poured on sugar the volume expands, it turns black and gets very hot. Which of…

A: A reaction is said to be exothermic when heat is liberated during the process.

Q: For the reaction shown, compute the theoretical yield of the product in moles for each of the…

A: The balanced chemical equation is given below.

Q: If you have an endothermic reaction and you add heat or energy, which way the reaction is shifting?…

A:

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: An endothermic reaction has O a negative AH, gives off heat to the surroundings, and feels warm to…

A: There are two type of reactions on the basis of heat exhange i.e.  Endothermic reaction  Exothermic…

Q: How much heat is produced when 1.25 g of chromium metal reacts with oxygen gas under standard…

A: Given that in there is 1.25 g of chromium (Cr) metal which will react with O2

Q: How many moles of KCIO, must be reacted according to the following balanced chemical reaction to…

A: Recall the given reaction       2KClO3s→2KCls + 3O2g  ∆H=-89.4 kJWe have to find the moles of KClO3…

Q: How much heat energy (in kJ) will be absorbed or released if 8.33 grams of ammonia is produced?…

A: Given data,Mass of NH3=8.33gEquation involved in preparation of NH3;N2(g)+3H2(g)→2NH3(g)