Wednesday, February 2, 2011

Virtual Lab

We've learned about balancing equations and different types of reactions. So it's time to put it to some use! This lab focused on metal/metal ion reactions and their reactivity.  So starting off with the beakers.
We started with observing the beakers. Inside each beaker were floating atoms. So, then ratio of ions in the solution were equal to the ratio of ions in the formula. Each beaker, has NO3 in it, meaning that the metal ions are the ones that accounts for the change in colour.
While in solution.


 Next was experimenting with the different metals and placing it each of the 4 solutions. Different reactions occurred and were recorded. Some didn't have a
After being put in solution.
reaction, and others did. Things like expanding, changing colour, and changes in the solution occurred.  Chemical formulas were written and balanced!
Example: Mg + 2AgNO3 --> 2Ag + Mg(NO3)2
After obtaining the information of which changes occurred to which metals and metal ions, we can conclude which has the higher reactivity. This resulted in the reactivity of metals being the opposite of the reactivity of metals.
So with finding the reactivity of a metal and metal ions, we can predict if they can react or not.
Here's a video on a metal reactivity lab! =)
 
Kekekeekeke.

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