A piece of unknown metal with a mass of 17.19 g is heated to 100.0 °C and is dropped into 25.0 g of water at 24.50 °C. The final temperature of the water is 30.0 °C. What is the specific heat of the metal? = 4.184 J/g °C

A. 6.69 J/g °C

B. 5.75 J/g °C

C. 4.18 J/g °C

D. 0.478 J/g °C

Why does his teacher ask him to balance the equation by including the correct coefficient

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

Who examines and coordinates the cleanup of polluted sites?