Looking at the three chemical reactions below. which one is correctly balanced? A CH4 +202 → H2O + CO2
B. 2Fe + 3Cl2 → 2FeCl3
C. SO3 → SO2 + O2

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

the tricuspid valve is present between right atrium and right ventricle

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.