I think the answer will be B. sliver and A. gold
The answer is checks. Older people use check as they're a lot more simple than technology today.
The breaking up of something such as federation.
Example:
“His rejection of disunion was consistent with his nationalism”
Hope this helps!
The person that stands at the front desk is the administrative
Answer:
The sample contains protein.
Explanation:
Biuret test is a test used to determine or assay for proteins in a solution. When the biuret reagent is added to a solution and it turns blue after 2 minutes, it means that the solution contains protein.
Benedict’s test is used to determine the presence of sugar (reducing sugar) in a solution. When it turns brick red, it means there is the presence of reducing sugar in large quantity.
From the question, since the solution turned blue on addition of Biuret reagent and was also blue on addition of Benedict’s reagent (the reagent is usually blue), it means that the solution contained just proteins excluding reducing sugars.
