Which of the following represents a physical change?
a: phase changing, b: atoms rearranging, c: bonds breaking, d: bonds forming

What is the relationship of air masses and the temperature of oceans?

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 does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients