cheesecake1919
10.12.2021 •
Chemistry
Use the reaction equation and bond energies to answer the question. 2H2O → 2H2 + O2 H-O: 467 kJ/mol H-H: 432 kJ/mol O=O: 495 kJ/mol What is the total energy of the reaction? Is this an endothermic or exothermic reaction?
A. -509 kJ/mol, exothermic
b. -509 kJ/mol, endothermic
c. 509 kJ/mol, endothermic
d. 509 kJ/mol, expthermic
Solved
Show answers
More tips
- F Food and Cooking Discover How to Properly Prepare Dough for Rasstegai...
- P Philosophy Unidentified Flying Object - What is the Nature of this Phenomenon?...
- F Family and Home Protect Your Home or Apartment from Pesky Ants...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
Answers on questions: Chemistry
- C Chemistry At 90°C, you dissolved 80 g of KCl in 100. g of water. Is this solution saturated, supersaturated or unsaturated?...
- C Chemistry __Is when water changes from a solid to a liquid...
- C Chemistry The reaction of Zinc (Zn) with hydrochloric acid (HCl) creates zinc chloride (ZnCl) solution and hydrogen gas (H2). If 2.56 grams of zinc reacts with excess HCl, what volume (in...
- C Chemistry A population of mice, some with light-colored fur and some with dark-colored fur are introduced into a field with dark soil. A few generations later, the majority of the mice have...
- C Chemistry Which of the following is NOT true? A. Many of the elements in your body were formed in a star. B. The speed of light determines the mass of an object. C. Mass can be turned into...
- C Chemistry The disaccharide lactose can be decomposed into its constituent sugars galactose and glucose by acid hydrolysis or by the enzyme lactase. Lactose intolerance in humans is due to...
- C Chemistry After making your hypothesis, you need to before starting to make observations for your descriptive investigation. A. design a procedure B. draw your conclusions C. decide what...
- C Chemistry Do all metallic oxides form alkaline solution???...
- C Chemistry Calculate the number of moles in 75 g of Glucose...
- C Chemistry Calculate the wave number and Frequency of violet radiation havingWavelength of 3500A⁰...
Ответ:
STP is a standard reference point of temperature and pressure, used when measuring gases. The universal value of STP is 1 atm (pressure) and 0o C. Note that this form specifically stated 0o C degree, not 273 Kelvin, even thought you will have to convert into Kelvin when plugging this value into the Ideal Gas equation or any of the simple gas equations. yes they are deal gases are those which follow ideal gas equation (which is PV=nRT).
Explanation: