B. increasing the amount of solvent used
Answer:
lower layer
Explanation:
Usually to identify halide ions in solution you use silver nitrate which readly react with Cl⁻, Br⁻ and I⁻ ions to form silver halide salts with different colors depending on the ion present in the solution.
Now, because the silver halide salts are insoluble in water and have a density higher that the water they will stay in the lower part of the test tube.
Hi, I think the rocks that are cooled and solidified above ground are most commonly basalt.
Hope I helped a bit!
The crudos is h2o combined with c3o