This unit I learned that not all acids are harmful, and some acids are in the food we eat. Another thing i learned is how the pH scale works. I learned that strong bases are at the top of the scale and weak acids are at the bottom. The last thing i learned is that a product is what the substance you get after a chemical reaction. The thing i enjoyed most about this chapter is the lab we did with the baking soda, calcium chloride and the beet juice. I did not enjoy the test was very difficult for me. I get confused with exothermic and endothermic energy, so one question I have is how can I easily remember which one is which. 

I did not do well.