Answer:
the mass of magnesium oxide will be less than the orginal peice of magnesium
Explanation:
because the magnesium burns to ashes in the presense of air
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.
<span>Vinegar is simply a mix of water and acetic acid, diluted to more or less harmless pH. It's the go-to because it is one of the more easily available acids, and is highly unlikely to do damage to anything.</span>
