A 45.0 g piece of metal with specific heat 0.450 J/g∘C and at 115∘C is placed in 200 g of water at 25.0∘C. What will be the final temperature of the water? A) 2.10 °C
B) 29.8 °C
C) 88.4 °C
D) 27.1 °C

Name 3 types of energy you see being used as you look around a classroom

In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.

How many energy levels contain electrons in an atom of zirconium (zr)?