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konstantin123 [22]
3 years ago
12

Is a paper clip homogeneous or heterogenous? substance or mixture? solution, colloid, suspension?

Chemistry
1 answer:
CaHeK987 [17]3 years ago
8 0

Explanation: It is an alloy, very probable, not homogeneous.

                  A metal paper clip is usually steel, an alloy of iron, carbon, and other elements in various amounts.  A plastic paper clip is composed of a polymer, a very complex compound.

                   A paper clip is a Colloid

i guess this helped you pls mark me as brainliest

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Gre4nikov [31]

Answer:

1.76

Explanation:

There is some info missing. I think this is the original question.

<em>A chemist dissolves 660.mg of pure hydroiodic acid in enough water to make up 300.mL of solution. Calculate the pH of the solution. Be sure your answer has the correct number of significant digits.</em>

<em />

Step 1: Calculate the molarity of HI(aq)

M = mass of solute / molar mass of solute × liters of solution

M = 0.660 g / 127.91 g/mol × 0.300 L

M = 0.0172 M

Step 2: Write the acid dissociation reaction

HI(aq) ⇄ H⁺(aq) + I⁻(aq)

HI is a strong acid, so [H⁺] = 0.0172 M

Step 3: Calculate the pH

pH = -log [H⁺]

pH = -log 0.0172

pH = 1.76

5 0
3 years ago
How many milliliters of a 0.40%(w/v) solution of nalorphine must be injected to obtain a dose of 1.5 mg?
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The number  of Ml  of  a  0.40 %w/v solution  of   ,nalorphine  that must  be injected  to  obtain  a  dose  of 1.5 mg is  calculated as  below


since M/v%   is  mass  of solute  in  grams per 100  ml

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Explanation:

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