Sidewalk
Calcium Carbonate-Chalk-CaCO3
The theme of the mole is sidewalk chalk. This is shown through the colorful chalk drawn over the body, the designs are ones you might see on a sidewalk that kids draw. The bright colored feet and colored string tail add to the sidewalk/kid fun idea.
Uses & Purposes
Active ingredient in agricultural lime
Used as calcium supplement or antacid
To raise pH levels in soils with high acidity
Cleaning & Polishing
Fingerprint powder
Phosphate buffer in hemodialysis patients
Draw on rough surfaces(blackboard, pavement)
Used on hands and feet to reduce slipping and get rid of sweat (gymnasts)
To mark boundary lines on fields
Molar Mass= 100.09 +/- 0.01g/mol
Interesting Fact
Ants won't cross a line drawn with chalk because the calcium carbonate will puncture their skin and they will die of dehydration.
Physical & Chemical Properties
Odorless
Porous
Powdery
Reacts with strong acids, releasing carbon dioxide
Non-corrosive