What is the universe made of? Astronomers face an embarrassing conundrum: they don't know what 95% of the universe is made of

What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6? in this reaction, ethane is burned in the presence of oxygen (o2) to form carbon dioxide (co2) and water (h2o). (g)+(g)→(g)+(g)

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right