Open study

is now brainly

With Brainly you can:

  • Get homework help from millions of students and moderators
  • Learn how to solve problems with step-by-step explanations
  • Share your knowledge and earn points by helping other students
  • Learn anywhere, anytime with the Brainly app!

A community for students.

Which of the following describes an exothermic reaction? Thermal energy is absorbed by the system. Thermal energy is absorbed by the surroundings. Thermal energy is not transferred. The initial and final temperatures of the system remains the same What is the specific heat of a substance if 12.6 grams of the substance requires 0.119 kilojoules of heat to increase the temperature by 5.9 degrees Celsius? 1.6 x 100 J/g·°C 1.6 x 10−3 J/g·°C 1.6 x 103 J/g·°C 6.2 x 10−1 J/g·°C Can someone help please !!!

Chemistry
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Join Brainly to access

this expert answer

SIGN UP FOR FREE
what is exothermic reaction :)
Im not sure its last minute chemistry work for school . Im getting confused and cant find the answer
An exothermic reaction is one where thermal energy is given out or you could say lost by the system. So option 2 is correct i.e thermal energy is absorbed by surroundings.

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

For the second question, do you know this formula? \[E=mc \Delta \theta \] where E= thermal energy required m= mass c= specific heat capacity \[\Delta \theta \]= change in temperature Rearranging the equation, you get \[c= E/ m \Delta \theta \] Now you can plug in the values to get your answer.
Good work emcrazy14. And @fibrown : \(\LARGE{\textbf{Welcome to OpenStudy!}}\)
Thank you! :)

Not the answer you are looking for?

Search for more explanations.

Ask your own question