A 23.2 g sample of copper if heated to 97.4°C and placed in a coffee cup calorimeter containing 100.0 g of water at 25.2°C. After the metal cools, the final temperature of the metal and water is 23.0°C.
Which substance absorbed heat and which one released heat?

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

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn

When the mercury level in a barometer decreases that atmospheric pressure has