What does the Law of Conservation of Energy state?

Q: Using the model below answer the question. Explain: How can products and reactants have different…

A: Endothermic reactions : These are the reactions in which the energy of the final product is more…

Q: How many joules are required to heat 75 grams of water from -85 ˚C to 185˚C?

A: Energy that required to heat water is calculated using the given formula,

Q: why do scientists worry about running out of energy in the future?

A: The demand of energy is increasing day by day because of increasing population. This growth is…

Q: 46 g of aluminum from 32 degrees celsius to 55 degrees celsius. What is the heat in cal?

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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: How much heat (in kJ) is needed when 133.43 g of water warms and boils from 33.45°C to 100°C?

A: The mass of the water sample is = 133.43 g The initial temperature of the water is = 33.45oC The…

Q: (a) Two pans of water are on different burners of a stove. Onepan of water is boiling vigorously,…

A: A substance's boiling point is the temperature at which a liquid's vapour pressure matches the…

Q: 5. 5. If 20,000 J of energy are used to heat mercury by 4.00 °C, what is the mass of mercury? 6.…

A: Heat released or absorbed by a substance is calculated as: q = m.C.∆T where m is the mass of the…

Q: What are the units of energy?

A: The potential of the body to do some work is defined as energy. There are various forms of energy…

Q: he energy change?

A:

Q: H,O*, heat

A: The given molecule is named as heptane-2,6-dione, and is reacting with H+ in the presence of heat…

Q: What are Endothermic Processes?

A: The endothermic processes has to be explained.

Q: Both physical and chemical changes are associated with changes in energy. Compare the energy changes…

A: Given : To compare the energy changes of system and surroundings with exothermic changes and…

Q: H2NNH2, OH CI heat AICI3, heat

A: According to the given conditions, substrate cyclohexene undergoes Friedel-Crafts type of Acylation…

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: Copper wires used to transport electrical current heat up because of the resistance in the wire. If…

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

A:

Q: What misconceptions do you have about ENERGY?

A: Energy of a body is ability to do work. It includes chemical energy, kinetic energy, potential…

Q: 1. For substances that will be in thermal contact, how would we know which will absorb energy…

A: #1: When two substances are in thermal contact with each other, heat is transferred in the form of…

Q: A home swimming pool contains 15 m3 of water. At the beginning of the swimming season, the water…

A: Volume of water = 15 m3Density of water = 1000 kg/m3Mass of water = volume x density = (15 m3) x…

Q: What are Energy Levels?

A: Given term,     Energy levels

Q: If 57 J of heat are added to an aluminum can with a mass of 17.1 g, what is it's temperature change

A: Given information:Mass of aluminum (m) = 17.1 gAmount of heat (q) = 57 J

Q: A sample is put into 400-mL of water. It releases 58.829 kJ of heat energy when it is combusted.…

A: we define specific heat capacity as the amount of heat  required to  raise the temperature of the…

Q: Suppose that a person eats a diet of 2383 Calories per day. Convert this energy into joules.

A: Suppose that a person eats a diet of 2383 Calories per day. This energy is to be converted into…

Q: What happens to the temperature of a material as it undergoes an endothermic phase change? If heat…

A: Endothermic process: A process in that heat is absorbed by the system is called as endothermic…

Q: A sample of brass, which has a specific heat contains 200.0 g of water. The brass sample the…

A: Loss of Heat of the Metal brass = Gain of Heat by the Water -Qbrass = Q water Q = mC∆T -mC ∆T for…

Q: List some examples of kinetic energy.

A: Kinetic energy could be defined as the energy that is found in objects that are moving. The energy…

Q: In a solar box cooker sunlight falls on the and the food gets cooked by absorbing heat energy.

A: Mirror is used in a solar cooker to increase the radiation input on the absorbing space and is fixed…

Q: Describe the law of conservation of energy?

A: According to Law of conservation of energy, energy of a system is always conserved.

Q: How many joules of heat energy is required in rising the temperature of 90.1g of water from 29.1 c…

A: It is given that 90.1 g of water is heated and the temperature rises from 29.1°C to a temperature of…

Q: 2. As energy is added to a substance, the temperature remains constant. How may the substance be…

A: When the energy is added to the substance, the kinetic energy of the molecules in creases and they…

Q: Is heat a matter or not? Why

A: Matter is defined as the substances that has mass and occupies space. Matter is composed of atoms or…

Q: what are some examples of potential energy?

A: Potential energy is the energy held by an object because of its position relative to other objects,…

Q: Give at least one chemical changes that are obviously accompanied by energy change.

A: A change in which chemical composition of substance changes is called a chemical change. For…

Q: Describe the process of quantifying heat and temperature?

A: Heat and temperature are two different but closely related concepts. More kinetic energy generates…

Q: The temperature of 100 mL of water changed from 10 degrees C to 15 degrees C during the phase of…

A: we can relate the heat change of a system to the product of the mass of the system, the specific…

Q: An example of using chemical energy is O a walking O b looking at the sun O c running d. eating

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Q: Once he executes the daring jump out of the plane the skydivers energy is converted to what type of…

A: When we have velocity then the kinetic energy is considered.

Q: Kinetic energy is best characterized by O heat transferred from a hot object to a cool one energy…

A: Kinetic energy that is defined as the energy that is associated with particles that are not…

Q: unit for specific energy?

A:

Q: Calculate the amount of heat needed

A: Given :- mass of acetic acid = 115 g                initial temperature = 33.9 °C  To be calculated…

Q: Units of Energy?

A: 1.) Joule It is the amount of energy transferred to an object when one newton force is applied to…

Q: ich heat energy is

A:

Q: energy is energy in motion and energy is energy that an object has due to it position or chemical…

A: Energy => ability to perform work by the body.

Q: What is heat capacity?

A: Heat capacity is a physical property of matter, defined as the amount of heat needed to be supplied…

Q: energy, in J, is

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Q: What does the law of conservation of energy state?

A: Anything which has mass and consumes space in surrounding is known as matter. Matter can be present…