Where are the first repost of new scientific discoveries published a.) internet sites b.) magazines c.) encyclopedias d.) scientific journals

D

Explanation:

D

Explanation:

Most if not all fields of research will post their results for others to test and find data to make sure their experiment is theoretically correct.

8 carbon atoms forming single bonds with 18 hydrogen atoms; a triple bond exists between the third and fourth carbon atom from the right

explanation:

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.