Question

.name two important ores of iron. how is extracted from sea weeds​

Answer 1

Answer:

hematite maybe the answer

Explanation:

hope my answer helped you

Answer 2

Answer:

Two important ores of iron are

1). Hematite,

2). Magnetite

Explanation:

It involves various methods for extractions from seaweeds.

Ribbon seaweeds (sp. laminaria) contain iodine compounds which they obtain by extracting iodide ions from seawater. This iodine can be extracted from the seaweed by heating it in air to an ash, in which the iodine is present as iodide. The iodide is dissolved out of the residue by boiling water, the solution filtered and the iodide oxidised to iodine using hydrogen peroxide. The iodine colours the solution brown at this stage. Isolating the iodine from this solution can be done by solvent extraction, followed by evaporation of the solvent.

I Hope it helps.