Consider these three changes in the possible distributions of six gaseous particles within three interconnected boxes. part a which change has a positive δs

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

What metric units would you use to measure the thickness of a key