The first Gizmo shows this equation: Fe
+ 3 CO
2 Fe
+ 3CO
2
O
3(s)
(g)
(s)
2(g)
There is a Question to solve under the equation.
Here are
... [Show More] the features that will help you solve each problem:
Y
ou have a set of 16 tiles containing various conversion factors.
Any of these tiles can be dragged
down and placed on the green bar to solve the problem. The
starting tile is already in place. It
cannot be moved.
When you place a tile correctly
, you will see a
red line that cancels units for you.
The tiles can be
flipped
if the units do not cancel properly
. Click the box, “Flip
T
ile
” after you
have dragged a tile down if you want to flip it.
Y
ou can always check how the units are going. Click the box, “Show Units”.
When you have the right tiles in place, a box appears – “Show Numerical Result”. Click the box
after you have calculated the answer to see if you are correct.
The “Reset” button moves all tiles away if you want to star
t over again. The “New Problem”
button gives you a dif
ferent problem with the same equation.
“New Equation” button changes the balanced equation.
Explore these features for several minutes until you understand how to control them.
Then do a minimum
of 10 problems. (Each reaction has 4 or 5 problems, and there are at least 7 dif
ferent equations.) Space to
record your work is attached.
Grading rubric:
10 problems done =
20 points
9 problems done =
18 points
8 problems done =
16 points
6-7 problems done =
14 points
5 or fewer =
no credit until at least 6 are done
The last 5 pr
oblems ar
e worth 1 point each to total 25 poi
nts for this assignme
nt.
Her
e is what to do:
Copy the Balanced Equation you are using: Fe
+ 3 CO
2
O
3(s)
(g)
2 Fe
+ 3CO
(s)
2(g)
What information is
? (This information is on the first tile.) 1.75 moles Fe
Given
2
O
3
What information is
W
ant
ed
? (What unit & na
me are you looking for?) moles CO
2
Copy the complete set of tiles
that you used to solve this problem. Use a calculator to solve t
he problem,
and check it in the Gizmo.
I have done a problem from the first reaction for you [Show Less]