Which action describes a chemical change caused by a change in temperature? O boiling an egg in a pot O freezing water to make ice O dissolving salt in warm water O mixing nuts and seeds in a cold bowl

Q: 9. If 2,035 cal of heat is added to a 500.0 g sample of water at 35.0°C, what is the final…

A: Given:mass of water= 500ginitial temperature, t1= 35∘Cheat supplied to water, H=2035calto find,…

Q: A gas is compressed from an initial volume of 5.75 L to a final volume of 1.24 L by an external…

A: Dear Student, You have not posted, what you want us to calculate. But, assuming that the question is…

Q: e shows the number chemical Change C cal Reaction Read of the following state hemical reaction A, b…

A: Types of chemical reaction 1. Chemical combination reaction or synthesis reaction 2. Chemical…

Q: 14. Heat energy equal to 25,000 J is applied to a 1200 g brick whose specific heat is 2.45 J/g°C. a)…

A: Given that,  Amount of Heat applied to brick q = 25000 J Mass of brick m = 1200 g Specific heat…

Q: If 40.0 kJ of energy are absorbed by 500.0 g of water at 10.0 °C, what is the final temperature of…

A: Assuming that the amount of energy absorbed will not change the phase of liquid water. Hence the…

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: Convert 17.3 JJ to Calories 132 kJkJ to Calories 56.2 CalCal to joules.

A: In this question, the energy values are provided and they have to be converted into mentioned units:…

Q: Calculate the amount of heat necessary to raise the temperature of 12.0 g of water from 15.4C to…

A: Heat required for raising temperature of a liquid depends on three factors namely mass of the…

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: Can you conclude that heat is always noticeably released in a chemical reaction?

A: Can you conclude that heat is always noticeably released in a chemical reaction?  answer of the…

Q: At a lower temperature the kinetic energy of the reactants of a chemical reaction is higher. True…

A: Given statement: At a lower temperature the kinetic energy of the reactants of a chemical reaction…

Q: The energy stored by a body by virtue of its position or chemical composition is termed A) kinetic…

A: Kinetic energy: The energy stored by a body by virtue of its position Potential energy: The energy…

Q: A student heats 84.17 ml. of water to 95.27 "C using a hot plate. The heated water is added to a…

A: Given,Volume of heated water = 84.17 mLVolume of cold water = 73.92 mLTemperature of heated water…

Q: If 40.5 J of heat is added to a 15.4 g sample of silver, how much will the temperature increase by?…

A: The amount of heat required to raise the temperature of a substance by one degree Celsius is called…

Q: 16) Which of the following is an exothermic process? A) condensation of water vapor B) Ammonium…

A: Exothermic process is a process in which energy get released during the course of reaction and the…

Q: An exothermic reaction is one where none of these heat is transferred from a system into the…

A: we have to select the correct statement for an exothermic reaction

Q: A hot 101.5 g lump of an unknown substance initially at 157.8 °C is placed in 35.0 mL of water…

A: we have to identify the unknown substance

Q: If 2.500KJ of heat are added to 50.0g of water at 25.00 °C, what would be the final temperature of…

A:

Q: A sample of water with a mass of 662.8 g undergoes a temperature change from 81.40°C to 18.91°C what…

A:

Q: The fow of energy due to a temperature difference is known as  A) heat  B) temperature C)…

A: GivenMass of water = 67.42 gInitial temperature =Ti = 1.2°CFinal temperature = Tf = 97.4 °C

Q: A 13.5 g sample of gold is heated, then placed in a calorimeter containing 60.0 g of water.…

A:

Q: How much heat is required to raise the temperature of 125 g of water by 10.0ºC? The specific heat of…

A: Given  Mass of water        (m)        = 125 gram  Temperature difference ( ∆T )  = 10 ℃ Specific…

Q: a sample of aluminum absorbed 9.86J of heat, and its temperature increased from 23.2C to 30.5C. What…

A: The objective of the question is to find the mass of the aluminum sample using the given heat…

Q: A 9.13-g sample of vanadium is heated to 99.10 °C and is then placed into 20.0 g water in a…

A:

Q: A hot 105.9 g lump of an unknown substance initially at 154.0 °C is placed in 35.0 mL of water…

A: The objective of the question is to identify the unknown substance by using the principle of…

Q: A 234.66 gram aqueous solution has a specific heat of 4.186 J/gºC. The solution is at 28.1 °C. What…

A:

Q: The amount of energy needed to heat 2.00 grams of mercury from 50.00 to 90.00 is 11.28 Jules. The…

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Q: What is the thermochemical equation. Formation of carbon dioxide gas from carbon (graphite) and…

A: The balanced chemical equation with the description of physical states and the amount of energy…

Q: specific heat of gold is 0.129J/g C. what is molar heat capacity of gold?

A: The Question is about to calculate the Molar Heat Capacity of Gold -

Q: Which of the reactions are exothermic? 2 Mg(s) + O,(g) → 2 MgO(s) + heat O NH, (g) + HCI(g) →…

A: The reaction that releases heat during the reaction,  is called exothermic reaction.

Q: How much heat is required to raise the temperature of a 825 g block of wood (specific heat = 1.8 %3D…

A: The amount of heat required to increase the temperature of one kilo gram of a substance by one…

Q: As a liquid vaporizes into a gas which of the following occurs?     the temperature increases and…

A: Kinetic molecular theory of the gases : If temperature is given, then Kinetic energy can be…

Q: A 30.37 g sample of a substance is initially at 28.3 degrees Celsius. After absorbing 2235 J of…

A: The amount of heat (Q) gained or lost by a substance (with mass m) as its temperature changes (ΔT)…