Register
Two substances each have a temperature of 23 degrees Celsius. After they are combined the temperature rises to 27 degrees Celsius. What evidence proves a chemical reaction occurred?
222k views
0 votes
Two substances each have a

temperature of 23 degrees Celsius.
After they are combined the
temperature rises to 27 degrees
Celsius. What evidence proves a
chemical reaction occurred?

User Sadeq
by
5.5k points

1 Answer

2 votes
The answer is temperature change
User Shortstuffsushi
by
6.0k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.6m questions

8.8m answers

Other Questions

When weak acids react with strong bases, the H+ from the weak acid is transferred to the: metal of the strong base to form a metal hydride OH− from the strong base to form water and a salt salt that is
How much heat is required to increase the temperature of 10.0 grams of water 6.0oC? (The specific heat of water is 4.18 J/g x oC) 250 J
Some elements can have multiple molecular forms in the same physical state. these multiple forms are called a. isotopes. b. isotropes. c. allotropes. d. multi-tropes.
True or false: in the water cycle, water returns to Earth as condesation, usually in the form of rain or snow.
The original amount of a radioactive sample should be multiplied by which expression to calculate the amount of the sample that remains after n half-lives have passed? (1/2)xn (1/n)^2 (1/2)^n 1/(2n)
Link Copied!