Classify each of the following chemical changes as exotermic or endotermic reaction a) A reaction absorbs 550 KJ b)The energy level of the products is lower than that of the reactans. c)The metabolism of glucose in the body provides energy. d)The energy level of the products is higher than that of the reactants e)In the body, the synthesis of proteins requires energy

Q: How many moles are contained in each number of grams of fructose (C 6H 12O 6, molar mass 180.2…

A: The given information is: The chemical formula of fructose = C6H12O6 Molar mass of fructose = 180.2…

Q: 3. A paraffin wax candle weighs 10.553 grams. The candle is lit and then immediately placed in a…

A: 3. Given, Initial mass of a paraffin wax candle = 10.553 g. Amount of water in calorimeter = 125 g.…

Q: Calculate the number of calories in a 5 fluid ounce glass of red wine that contains 2.6 g of…

A: 1g of carbohydrate calorie value is 4 calories. Where 1 g of alcohol calorie value is 7 calories.

Q: A serving of a particular ready-to-serve chicken noodle soup contains 2.5 g fat, 14 g carbohydrate,…

A: The fuel value of fat is 38kJ/g; carbohydrate is 17  kJ/g and of protein is 17  kJ/g.In the chicken…

Q: „Ph 1) O, 2) Zn, H20 3) NaOH, H2O heat, (dehydration) CH2 0 to NaOH, H20 heat (dehydration)

A:

Q: What is the energy change when the temperature of 13.9 grams of gaseous helium is decreased from…

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Q: What do you mean by exchange energy?

A: ANSWER IS DISCUSSED BELOW :

Q: The night shift nurse at Northside hospital administers 255 mL of an IV solution of glucose whose…

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A:

Q: Which of the following statements is true? O Energy is required to break the bonds of the reactants…

A: The statements given are,

Q: 2SO2 (9) + O2 (g)* → 2SO3 (9)

A: Energy of products – Energy of reactants = Δ H

Q: Which law of thermodynamics best explains respiration? *

A: According to the first law of thermodynamics energy is converted into different forms but is not…

Q: 1. What are the step by step process of Calorific Test of Gaseous Fuel?

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Q: Is the reaction for the formation of methanol exothermic or endothermic? One sentence only

A: The reaction for the formation of methanol is exothermic.

Q: Does toasting bread change the amount of calories in the bread?

A: Toasting of bread: Generally speaking toasting of bread is a chemical change. Addition of heat…

Q: 5- What is the definition of the specific heat capacity of a substance? a. the amount of heat…

A: When a substance heated its temperature will be increased. The amount of heat required to increase…

Q: The addition of HBr to CH2=CH2, an exothermic reaction. Define this ?

A: A reaction is said to be exothermic when the energy is released in the reaction due to which change…

Q: A 32.25 g sample of polymer A is initially at 21.4 °C. This substance then absorbs 1,557 J of heat,…

A:

Q: What is the definition of the specific heat capacity of a substance? the amount of heat required to…

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Q: Which is correct about low calorific value? a. The total amount of heat produced includes the heat…

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Q: What is the energy change when the temperature of 10.7 grams of solid chromium is decreased from…

A: Solution:- Given data => mass of solid Chromium = 10.7 g Initial temperature = 37.2 0C  Final…

Q: Estimate the number of Calories in two tablespoons of peanut butter, which contains 16 g of protein,…

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Q: The heat of solution (ΔHsolution) for silver nitrate is +36.91 kJ/mol. Although this process is…

A: If ∆G for a reaction is negative then the reaction is spontaneous.

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Q: C Macmillan Learn The table lists the specific heat values for brick, ethanol, and wood. Specific…

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Q: 03 Multiple Choice Which of the following is a quantitative measure of disorder?

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Q: convert 123 J to calories 515 cal 34.2 cal 443 cal 29.4 cal

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Q: Calculate the amount of energy (in kJ) required to heat 100. g of water from 20.0 ºC to 35.0 ºC?…

A: Thermodynamics is branch of chemistry which deals with heat gained or heat lost by the system.

Q: An unknown organic compound is being proposed as an alternative to gasoline. The enthalpy of…

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Q: One gram of alcohol provides 7 Calories. Calculate the number of Calories in a 5 fluid ozoz glass…

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Q: What are the important features of an energy diagram?

A: An energy diagram is a diagram showing the change in the energy during any chemical reactions.

Q: Hbr at 23.5 c added to KOH at 23.5 c in a coffee cup calorimeter containing 40 grams of water at…

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Q: Write the thermochemical equation for the following reaction that occur at constant pressure. 1.)…

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Q: Exothermic Endothermic Heat Heat Heat Heat Which statement is correct? O When an endothermic process…

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Q: A serving of soup contains 4.0 g4.0 g of fat, 16.0 g16.0 g of carbohydrates, and 2.0 g2.0 g of…

A:

Q: 21. Which device to nutritionists use to determine the number of calories in samples of food? a foam…

A: Nutritionists use a bomb calorimeter, which is abox with two chambers, one inside the other, toburn…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.