Is a substance that a filter can seperate into two parts a mixture or a pure substance?

In this synthesis reaction what products will form

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

How does carbon monoxide pose the greatest threat to humans? a. it can be produced by wood fires. b. it can be produced by home furnaces. c. it is produced by acid rain. d. it is produced by modern automobiles.