According to the animation, what does the electron transport chain do to the concentration of hydrogen ions (protons)

We just started a new lesson in chemistry and everyone hates it and i dont get it one bit. i hate school. h el p.balanced equationc3h8+5o2-> 3co2+4h2o1.) if you start with 14.8g of propane(c3h8) and 3.44g of oxygen, which is the limiting reactant -check my answer 2.)what mass of excess reagent is left over? 3.)what mass of carbon dioxide can be made? 4.)what mass of water is produced?

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

What is the main reason why some developing countries fear the increase the free trade policies around the world?