User reported bug: equation typo

phetsims / balancing-chemical-equations

"Balancing Chemical Equations" is an educational simulation in HTML5, by PhET Interactive Simulations.

http://phet.colorado.edu/en/simulation/balancing-chemical-equations

GNU General Public License v3.0

2 stars 5 forks source link

User reported bug: equation typo #98

Closed oliver-phet closed 9 years ago

oliver-phet commented 9 years ago

Problem description: This is a simple typo which causes a logic issue, as can be seen in the screenshot, the answer to the equation is unbalanced because of the number of hydrogen, on the left side of the equation there is 6 and on the right, only 5 (According to the equation, the picture is correct)

Steps to reproduce: No special steps, simply go through the level 3 game until this problem is encountered.

Severity: Annoyance/Potential cause for confusion

Screenshots:

pixelzoom commented 9 years ago

This is not a bug. There are 6 hydrogens (not 5) in C₂H₅OH. One hydrogen is bonded to the oxygen, as can be seen in the molecule structure.

pixelzoom commented 9 years ago

@oliver-phet Assigning this back to you to communicate with the user who reported this. Please close when that's been done.

oliver-phet commented 9 years ago

Email to user sent.