Assume that the chemical reaction shown started out having a total of 15 g of potassium and water. How much potassium hydroxide and hydrogen gas will be produced by the chemical reaction?
Solved
Show answers
More tips
- A Auto and Moto How to Start a Diesel Engine in Cold Weather?...
- F Family and Home How to Remove Tar Stains: Tips and Recommendations from Experts...
- F Family and Home How to Remove Fading from Clothes: Tips and Tricks...
- S Sport How to Do a Jumping Split...
- H Health and Medicine How Did Inna Lose Weight on Dom 2?...
- F Family and Home How to Properly Fold Napkins in a Napkin Holder?...
- F Food and Cooking How to Set Up Ventrilo - The Ultimate Guide...
- S Science and Technology How to Make a Homemade Smoker: The Ultimate Guide...
- A Auto and Moto Battle for the Relocation of The Cherkizovsky Market: Who Won?...
- C Computers and Internet How Do You Refill Cartridges?...
Answers on questions: Chemistry
- C Chemistry What is the HCPCS Level II code for the compounded concentrated form of 0.5 mg Levalbuterol HCL when inhaled...
- C Chemistry Methane is approximately 23 times more powerful than carbon dioxide as a greenhouse gas. Which are significant sources of methane emissions...
- C Chemistry The representative particle for zinc is the a molecule b atom c gram d formula unit...
- C Chemistry Does pollution stay in the city where it originates...
- E English Which excerpt from Silent Spring best appeals to readers’ pathos? A) So it had been from the days many years ago when the first settlers raised their houses, sank their...
- C Computers and Technology If you have two tasks x and y, with y being a successor to x, if we mark x as undone (because it needs to be redone for some reason), then y will also need to be redone,...
- B Business Consider the following scenario: X is an inferior good. What would happen to the price of X if the cost of production of X increased at the same time as the consumers...
- M Mathematics The red blood cell counts (in 10^5cells per microliter) of a healthy adult measured on 5 days are as follows: 50, 49, 55, 53, 48 Find the standard deviation of this sample...
- E English Read the following excerpt: Now, said Hamlet, there is nothing left but revenge. Remember thee—I will remember nothing else—books, pleasure, youth—let all go—and your...
- P Physics The steel bed of a suspension bridge is 200m long at 20 C. If the extremes of temperature to which it might be exposed are -30 C to 40 C, how much will it contract and...
Ответ:
36.55 J
Explanation:
PE = Potential energy
KE = Kinetic energy
TE = Total energy
The following data were obtained from the question:
Position >> PE >>>>> KE >>>>>> TE
1 >>>>>>>> 72.26 >> 27.74 >>>> 100
2 >>>>>>>> 63.45 >> x >>>>>>>> 100
3 >>>>>>>> 58.09 >> 41.91 >>>>> 100
The kinetic energy of the pendulum at position 2 can be obtained as follow:
From the table above, at position 2,
Potential energy (PE) = 63.45 J
Kinetic energy (KE) = unknown = x
Total energy (TE) = 100 J
TE = PE + KE
100 = 63.45 + x
Collect like terms
100 – 63.45 = x
x = 36.55 J
Thus, the kinetic energy of the pendulum at position 2 is 36.55 J.