Kinetic energy is best characterized by O heat transferred from a hot object to a cool one energy contained in a chemical compound energy stored in a battery O relative position of particles

Q: A sample of water with a mass of 38.50 grams absorbs 2.950 kJ of heat energy. if the initial…

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Q: 17. What is the definition of energy?

A: In chemistry, energy can be defined as a feature of a substance as a result of its atomic or…

Q: Which statement is true of energy in reactants during an endothermic reaction? The energy found in…

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Q: Convert between energy units. a. 231 cal to kJ b. 132 x 10* kJ to kcal d. 2.88 x 10* J to Cal c.…

A: Convert between energy units. (a) 231 cal to kj (b) 132 × 104 kj to kcal (c) 4.99 × 103 kj to kWh…

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: 12.755 g of a mental initially at 99.0 degrees C are placed into 75.0 g of water initially at 23…

A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the…

Q: Define The Nature of Energy?

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: A student mixed sodium carbonate and calcium chloride in a test tube. A white solid appeared…

A: Given reactant  Sodium carbonate  Calcium chloride Product  To be determined

Q: What is the specific heat of an object that goes from 25.2 Celsius to 31.4 Celsius Celsius when it…

A: Given: Amount of heat absorbed = 250 cal. Initial temperature = 25.2 oC Final temperature = 31.4 oC…

Q: What is energy and what units are used to measure energy?

A: The term energy and what units are used to measure energy has to be defined

Q: When a solid substance changes to a liquid at a constant temperature, th statement that correctly…

A: When a solid melts to liquid at constant temperature: The temperature do not change.  i.e T=…

Q: iquid water turns to ice. Is this process endothermic or exothermic? Explain what is occurring using…

A: During the course of reaction , if heat is absorbed by the system  than reaction is endothermic . If…

Q: describe THE NATURE OF ENERGY

A: Energy is the capacity to do some work. It is the ability to cause change.Energy comes in different…

Q: 500 g piece of iron changes 7°C when heat is added. How much heat energy produced this change in…

A: Given that: Mass of iron(m) = 500g Change in temp(dT) = 7°C Specific heat of iron(C) = 0.444J/g°C

Q: What kind of kinetic energy is most often produced from chemical energy in chemical reactions?

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

A: To define: Solar energy.

Q: We heat a 25-g sample of metal from 10 °C to 85 °C, 1082 J of energy is added to it by heat.…

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Q: 7. If you add a 120 °C platinum piece with a mass of 2.34 g (c = 0.126 J/g°C) to 100 g of 5.2 °C…

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Q: An isolated system is one that O exchanges heat and matter with the surrounds. exchanges neither…

A: answer : selected answer is correct

Q: How much heat is required to raise the temperature of 7.35 g of water from 21.0 to 98.0 °C (Assume…

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Q: A 28.4 g sample of aluminum is heated to 39.4 ̊C, then is placed in a calorimeter containing 50.0 g…

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Q: A 0.82 g corn chip burns and heats 50 g of water from 22.1 degrees C to 27.8 degrees * C . If 0.23 g…

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Q: 5. Why does heat transfer from object to object? Heat is energy so it moves Heat transfers because…

A: Heat is energy which is formed ultimately from any energy . Heat transfers from one place to another…

Q: The amount of energy required to raise the temperature of a substance by 1 K (1 °C) is its heat…

A: We have to conclude what is the term called in chemical thermodynamics when 1g of substance is…

Q: A 15.5g piece of chromium is initially heated to 100.0 degrees C and then dropped into a beaker…

A: The mass of chromium metal piece is = 15.5 g The temperature of the chromium piece is = 100oC =…

Q: A 22.44 g sample of iron absorbs 180.8 J of heat, upon which the temperature of the sample increases…

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Q: h energy

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Q: Calcium carbonate breaks down into calcium oxide and carbon diox- ide when heated. The products have…

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Q: In the laboratory a student finds that it takes 48.7 calories to increase the temperature of 11.6…

A: Using formula of specific heat capacity and by putting values given we have solved this problem.

Q: The specific heat capacity of water is 4.184 J/g°C and the specific heat of air is 1.006 J/g°C If I…

A: Given: The specific heat capacity of water, C​​​​​​water =4.184 J/g°C The specific heat of…

Q: James is climbing a mountain. Is the distance he travels to the top of the mountain a state function…

A: A question based chemical thermodynamics that is to be accomplished.

Q: During an endothermic chemical reaction, a system becomes [Select] [Select] in potential energy. and…

A: The energy difference between the products and reactants is known as the energy change of a…

Q: In an exothermic chemical reaction O heat is released as the reaction proceeds. O the mass of the…

A: Enthalpy of reaction is as- ∆H°rxn = H(product) - H(reactant)  When H(product) < H(reactant)…

Q: Which of the following is true about an exothermic process? An exothermic process feels hot to touch…

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Q: As the caterpillar climbs, its potential energy is increasing, what source of energy has been used…

A: As the Caterpillar climbs, the potential energy is increasing. The energy source that has been used…