MULTIPLE CHOICE QUESTION Substances that would be described as an Element (such as Argon gas Ar,
fluorine gas F2, pure metal like gold Au ) have an oxidation state of what
number?
mentary
2

3
-1

1

O

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 are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers

What is the percentage composition of carbon in the compound ch4