26. Which equation is NOT balanced? a. 4H, +202 + 4H2O
b. H2 + H2 + O2 -> H2O + H2O
c. 2H2 + O2 -> 2H2O
d. 2H2 + O2 + H2O

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?

Which of the following units is not an official si unit

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy