If you were a scientist, why wouldn't you use "sour taste" to identify a compound as acidic?

Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -

Which position represents spring in the southern hemisphere? a) b) c) d)

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?