Which best represents a balanced equation? A. 2Fe + O2 eq132916_b1 Fe2O3 B. HgO eq132916_b1 Hg + O2 C. 2H2 + O2 eq132916_b1 2H2O

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?

What type of reaction fuels the processes seen here?