Download Assignment 4

Name:_________________
CH 104
Homework #4
Reading 1.9, 2.1 - 2.4
Extra Suggested Problems: 35, 36, 50-56, 72, 73, 77-79
A 80 gram hot chunk of lead is dropped into a bucket of water raising the waters temperature.
The water started at 15C and is now at 60C. There is 300 grams of water in the bucket, how
much heat did the lead conduct to the water? Lead’s specific heat capacity is 0.04 cal/g·C
List the points from the Greek Atomic Theory in the correct columns.
Correct
Incorrect
Explain how Rutherford came to the conclusion that the atom has a very small, very dense,
positively charged core.
Why did it take 33 years to find the neutron?
JJ Thomson's discovery of the electron using the Crook's tube led to the development of what?
According to Dalton, what happens during a chemical reaction.
Explain why Dalton would be happy to know that the chemical formula for water is H 2O.