OK,lisen to me slowly,
all define you.all thing
1.Look at peridoic table which one is solid or others.
For example:hydrogen is air.
And you gonna explain what is hydrogen,
2.After look periodic table you will be able to know every element.
3.Dont forget to check your homework.!!
<span><u><em>First, we should define what a mixture and a two-phase mixture mean.</em></u>
<u><em>A mixture</em></u> is a combination of two or more substances without any chemical reaction occurring between them. Components of a mixture can be separated using physical methods such as heating, filtering, evaporation, .... etc
<em><u>A two-phase mixture</u></em> is a type of mixture that contains two different phases of matter, for example solid and liquid phases in one mixture or liquid and gas phases in one mixture.
<u><em>Now, we can give examples of two-phase mixtures and mention how to separate them:</em></u>
<u><em>A mixture of sand and water</em></u> is considered a two-phase mixture (sand is sold and water is a liquid).
<u><em>The components can easily be separated</em></u> using filtration where the sand will remain on the filter paper and water will pass.
Another example is <u><em>a mixture of sugar and water</em></u> (sugar is a solid and water is a liquid).
<u><em>The components can be separated </em></u>by heating. We can eat the mixture until water evaporates and the sugar is precipitated. The evaporated water can then be condensed into a different container.
Hope this helps :)</span>
Answer:
The ion is a monoatomic cation
The symbol of the noble gas is Krypton(Kr)
The formula of the ion is Br⁻