Make a Better Guess #1
This page presents random "word" problems in the area of elements, mass and moles
which are to be done without a calculator. You are to estimate the answer to
one significant figure using only the periodic table and mental calculations. If
you write anything down or use a calculator, you are defeating the purpose of the
exercise. When you press "New Question", a question will appear in the top frame. Estimate the
answer and enter it in the cell. Then, press "Check Answer" animate the
answer and enter it in the cell. Then, press "Check Answer" and the results appear in the
table. If you get a problem wrong, you should redo it until you get it correct, but you
can press "New Question" at any time. You need a periodic table or chart of the elements
to do these problems.
- If you miss a problem three times, pressing the "Show Answer" button will cause the correct answer to appear.
