Today we did one experiment, and we learned about how other atoms mix together. We made a model of how molecules are made of different atoms. Atoms get hooked up together because some are missing electrons, and some have too much. If you look at this picture, the atom of Co is missing two electrons, and each of two atoms of Cl have a extra electron. So they hook up together and they're happy because they are not missing any electrons.

But sometimes when molecules meet they relize they may have better friends than another. Like on the picture below. The atoms of Cl like atoms of Na more than they like atom of Co. So they split, and from Co they go Na.

So that was paper model. Here is the experement with real chemicals. One little bottle in this picture has chemical CoCl2, another has Na2CO3.

So we (1) took one skoop of one chemical and put it into the well of the reaction plate (upper right with white stuff in it), and (2) a skoop of another chemical and put it into another well which is below the first one. And we added 10 drops of water into each well and mixed each well . Then we took two drops from each well and mixed in the third one. They reacted together and made pinkish jello. That's because they reacted into two other chemicals: NaCl and CoCO3 which is solid and makes the stuff look like jello.