A 245.7g sample of metal at 75.2°C was placed in 115.43g water at 22.6°C. The final temperature of the water and metal was 34.6°C. What is the specific heat of the metal? The specific heat of water is 4.18 J/g∙°C.

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Which of these conditions most likely produces an unstable isotope?