Chemistry
TO GET FULL CREDIT IN CALCULATIONS:
Each problem is usually worth 4 points, 1 point for each step
Step 1: write the equation
 On a page of problems, you can write the equation once at the top of the
page and get one point for each problem.
 For example: q = m ΔT Cp
Step 2: list the variables
 For example:
q = ? in J and kJ
m = 100.0 g
ΔT = 85.0-25.0 = 55.0 ˚C
Cp = 4.184 J/g˚C
Step 3: plug in the numbers
 For example:
q = (100.0) (55.0) (4.184)
Step 4: write the answer
 To get this point, the answer must be rounded to the appropriate sig figs
and include the units
 For example:
q = 2.30 x 103 J = 23.0 kJ