Jan 4-5 2010

Welcome back from winter break!

We dove right into chemical reactions (chapter two) and started off with a reaction that combined HydroChloric Acid (HCl) with Magnesium (Mg). When the two were mixed we saw bubbles of gas and noted that the flask that held the HCl became warm to the touch.

We wrote out the equation as HCl + Mg --> H2 + MgCl2

We noted that this was NOT a balanced equation.

We then collected the gas in a balloon and ignited it. We saw a large fireball.

We then wrote down the equation H2 + O2 --> H2O, again we noted that this was not a balanced equation.

We then completed the start up activity on page 27 then watched some of our commercials.