QUESTION 12 When two atoms of 2H are fused to form one atom of 4He, the total energy is 3.83x1012J. What is the total change in mass (in amu) for this reaction? Express your answer to 4 decimals, and include the unit with your answer.

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

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Q: Calculate the kinetic energy in joules of an automobile weighing 4175 lb and traveling at 45 mph. (1…

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Q: Magnesium burns in air with a Dazzling brilliance to produce magnesium oxide…

A: Convert mass into mole by mass/molar mass  Then apply mole-mole relationship to get the answer

Q: The decomposition of 10.0 g of ammonia requires 27,200 J of energy to give hydrogen and nitrogen…

A: Heber process: It is the industrial technique to produce ammonia from nitrogen and hydrogen gas. The…

Q: What does the graph represent?(Select the correct answer below) Reactants AH Phodacts Peaction…

A: Chemical reactions are classified into two types on the basis of heat involved, exothermic and…

Q: what does Cs and Cl react to

A: Caesium falls in the first group of the periodic table and chlorine falls in the seventeenth group…

Q: Consider the following reaction: 2 PbS (s) + 3 O2 (g) → 2 PbO (s) + 2 SO2 (g) AHxn = -827.4 kJ What…

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Q: how many grams of water will form if 655 kJ of energy was released

A: Given :- CH4 (g)  + 2 O2 (g)  -->  CO2 (g) + 2H2O (g)       Δ H = -882 kJ/mol To calculate :-…

Q: 1. Using a dark sphere to represent hydrogen atoms and a light sphere to represent oxygen atoms…

A: A hydrogen atom is an atom of the chemical element hydrogen and an oxygen atom is an atom of the…

Q: Nitrogen gas mixes with hydrogen gas to produce ammonia gas (NH3). How much energy is required or…

A: Energy produced by this reaction is equal to -91.8 KJ/mol N2 + 3H2 -------> 2NH3        DEL Ho=…

Q: What is the average kinetic energy of argon atoms at a temperature of 115°F?   What is the average…

A: Given: Temperature (TF) = 115°F   Or TK = (TF + 459.67)×(5/9) Or TK = (115 + 459.67)×(5/9) Or TK =…

Q: CHE 180 General Chemistry I Homework Chapter 1, continued 10. Exercise 92: The properties of a…

A: Based on change in properties of a mixture of substances we can define it as a physical or chemical…

Q: After reading the text in What's now, Let us see how far you have learned this topiC. Activity 1.2:…

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Q: 7. Compare the kinetic energy of water molecules at 20°C and 60°C O The molecules at 20°C will have…

A: Kinetic energy (K.E.) = (1/2) mv2  m is the velocity of particle m is the mass of particle

Q: The thermogram in Figure below shows the change in mass of a sample of Copper sulfate pentahydrate,…

A: TGA is thermogravimetric analysis. From TGA analysis, one can examine the thermal stability of a…

Q: uestion 27 D Se(s) +3 F2(g) → SeF6(g) AS' = -337 J/(mol,n· K) Substance ApproximateS (J/(mol · K))…

A: Entropy is a parameter which determines the randomness of a system. A positive entropy means the…

Q: The thermogram in Figure below shows the change in mass of a sample of Copper sulfate pentahydrate,…

A: The mass fraction of water in CuSO4.5H2O = Mass of water in CuSO4.5H2O/ (Molar mass of CuSO4.5H2O)

Q: The energy associated with the motion of particles in a substance is called   chemical energy. heat.…

A: The heat energy is associated  with the motion of the particles in a substance .Particles in a…

Q: Solar energy is: O the energy stored within the structural units of chemical substances. O the…

A: To define: Solar energy.

Q: What are different properties of carbon?

A: Carbon is a non-metal belongs to group 14 in the periodic table. The atomic number of carbon is 6…

Q: Which of the following statements describes the difference between endothermic and exothermic…

A: We know that, Endothermic means absorption of energy and exothermic means energy released.

Q: Would you agree to buy 1.23 x 1021 gold atoms for $17? Explain why or why not, showing all work. The…

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Q: c) (NH),CO,() 2 NH,(g) + CO,(g) + H,O(g) d) Ag,SO,(0) = 2 Ag (aq) + So (aq)

A: The equilibrium constant expression involves only liquid and gas and not solid. Equilibrium constant…

Q: Part A Assume that the kinetic energy of a 1150 kg car moving at 135 km/h could be converted…

A: First we would calculate kinetic energy of car , which would be value of heat.  Then we would use…

Q: Laboratory quantities of ethylene gas, CaHa(g), can be prepared by an elimination reaction of…

A: In order a reaction to proceed conversion from reactant to product, it involves some amount of heat…

Q: When 2 moles of HBr(g) react with Cl2(g) to form HCl(g) and Br2(g) according to the following…

A: The reaction taking place is given as, => 2 HBr (g) + Cl2 (g) → 2 HCl (g) + Br2 (g)

Q: How many grams of carbon are present if it requires 57.5 kJ of energy to heat a sample from 20.0 to…

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Q: Given: 4 NH3 (g) + 3 O2 (g) → 2 N2 (g) + 6 H2O (l)  ΔH = -1500 kJ How many grams of ammonia (MM =…

A: Mass = number of mols x molar mass Given balanced equation suggests that: 1500 kJ energy is released…

Q: 11700kJ/mol . To which of the following elements do these values corresponds? Select one: a Si b. Mg…

A: Ionization energy is defined as the amount of energy required to remove valence electron from an…

Q: A hypothetical student achieved a 125% yield of barium phosphate. Explain, briefly, why this result…

A: Percent yield is the percentage of ratio between actual and theoretical yield of a reaction. Actual…

Q: The thermogram in Figure below shows the change in mass of a sample of Copper sulfate pentahydrate,…

A: Solution:Generally TGA analysis is used to check the thermal stability of given material. Metal…

Q: ergy is given off by the

A: The balanced chemical reaction,  4NH3 + 3O2 ----->  2N2 + 6H2O □H = -1225.6 kJ Mass of NH3 =…

Q: Which of the following are exothermic reactions and which are endothermic? (a) the burning of…

A: •EXOTHERMIC REACTION:- Exothermic reaction are those reactions which produces heat and their…

Q: Given these reactions, where X represents a generic metal or metalloid 1)…

A: There are some errors in the given reactions, here the corrected reactions are,

Q: convert an energy of 526 cal to units of joules

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: In experiment #7, you observed the formation of carbon dioxide by reacting baking soda with vinegar.…

A: When baking soda and vinegar reacts, carbon dioxide is formed as a product.

Q: When you turn on a flashlight that uses batteries, what is the energy transformations taking place?…

A: According to the energy conservation rule, the total energy of the universe remains constant. Energy…

Q: What area of study in chemistry is concerned with the heat transfers that occur during chemical…

A: Thermodynamics is one of the topic of science which is in physics as well as chemistry.

Q: If my energy usage is an average of 998.79 kilowatts/hours per month in the last 12 months. How many…

A: The energy of a system is a property associated with it and is used to perform a notable quantity of…

Q: 3 Calculate the amount of heat released per gram of aluminum : QA! Al mass of

A: #3: In this experiment, the temperature of Al metal is decreasing and that of water is increasing.…

Q: How many grams of NaCI will be produced when 489.2 J of energy is released? 2 Na (s) + Cl2 Cl2 (g)…

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Q: Find the total energy involved in converting 450.0 g of water from -21°C to 35°C.

A: We know that heat required to increase the temperature from -21°C to 35°C is given by = q1 + q2 + Q3…

Q: The thermogram in Figure below shows the change in mass of a sample of Copper sulfate pentahydrate,…

A: When copper sulfate pentahydrate solution is heated with high temperature, then at first it looses…

Q: 2. How much energy is contained in each of the following? a. 3 moles of chlorine molecules b. 5…

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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: Hypothetical elements A2 and B2 react according to the following equation, forming the compound АВ.…

A: We will answer this question using ∆H value and calorimeter concepts.

Q: Convert this energy, 2.64 X 105 J to calories

A: Generally, one calorie is equal to 4.184 joules. Hence, one joule is 1/4.184 calories. The given…

Q: Hydrazine, N2H4, can be used as fuel to orient and maneuver spacecraft. The energy used to do so is…

A: Solution stoichiometry involves the calculation of the concentration of solutions in the given…

Q: Specific heat is defined as ___ - The amount of energy needed to raise the temperature of 1 g of a…

A: The solution is as follows :