The student repeats the experiment, this time placing a small block of iron into another 2009 sample of water. The specific heat of iron is 0.45JIgºC. Both the iron and the water are
initially at 20°C and are heated to 80°C.
c) Compare the amount of thermal energy absorbed by the water in this experiment with
your calculation in the first part (17a). Explain your answer.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

im pretty sure its b