Answer:
Chemical change
Explanation:
The rusting of iron/a nail is a chemical change
Iron (Fe) and Oxygen (O) combine to create the compound Iron Oxide (Fe2O3), which is rust.
Answer: The adult stage for one-celled organisms is usually extremely long.
Explanation:
The first one is false, I'm no expert, but I'm pretty sure that there is some yeast that don't produce spores, even in normal conditions.
The third is false, Algae can be unicellular <em>and </em>multicellular.
The fourth is false, All the Algae in the world is close to <em>half</em> of the ogygen in the world.
So that leaves the second, The adult stage is usually long for one-celled organisms.
<span>Answer:
Benzylic radical . First Br radicals are produced which strip off a H- from the methyl group. The benzylic radical the reacts with Br2 to form benzylic bromide and another Br radical.</span>
That would be the element aluminum.
