HELPP Based on the nature of the reactants, which reaction below will occur at the fastest rate at 84°C ?
1. 2KCIO,() 2KCI(s) + 30,(g)
3. N.(g) + 3H2(g) → 2NH,(g)
7. H(aq) + C, H,O, (aq) » HC, H,O,
8. C(s) + O2(g) → CO
(G)

when atmosphere interacts with biosphere they focuses on on the sources and sinks of green house gases (ghgs) air pollutants, particular matters, water and energy between the earth's surface and the atmosphere. the biosphere affects the climate. the atmosphere and biosphere are in constant interaction with each other, and all living things rely on gases in the atmosphere for life. organisms such as animals take in oxygen gas form the atmosphere to use in every cell of their body for smooth functioning of daily routine exercises.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.