What type of reaction is shown below? ch4 + 2o2? co2 + 2h2o + heat

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

The atom fluorine generally will become stable through the formation of an ionic chemical compound by accepting electron(s) from another atom. this process will fill its outer energy level of electrons.

Ablock of aluminum is dropped into a graduated cylinder with an initial volume of water at 75ml and the volumes rises to 90ml. if the block has a mass of 40.5 g what is its density ?