Without using the value of So, predict the sign for a) 2K(s) + F2(g) → 2KF(g)
b) NaClO3(s) → Na+(aq) + ClO3-(aq)
c) 2NO(g) + O2(g) → 2NO2(g)
d) H2S(g) + O2(g) → S8(s) + H2O(g)

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride

How is the use of hydroelectric power related to the sun