28 which of the following compounds contains a transition metal? a. magnesium bromide (mgbr2) b. sodium chloride (nacl) c. potassium hydride (kh) d. iron oxide (feo)

How many atoms of oxygen are contained in 160 grams of n2o3

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 statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.