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Ahat [919]
3 years ago
10

If something is made of atoms it must be what?

Chemistry
2 answers:
UNO [17]3 years ago
4 0
The answer would be matter. 

That is because anything that has mass and takes up space it matter. Also, atoms are the basic unit of all living things. EVERYTHING is made up of atoms. 
Aneli [31]3 years ago
3 0
It must be made of matter because anything and everything is made up of atoms. The other three options are made of atoms but they are also matter.
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A solution with a ph of 4 has _________ the concentration of h+ present compared to a solution with a ph of 5.
Marina CMI [18]
<span>A solution with a pH of 4 has ten times the concentration of H</span>⁺<span> present compared to a solution with a pH of 5.
</span>pH <span>is a numeric scale for the acidity or basicity of an aqueous solution. It is  the negative of the base 10 logarithm of the molar concentration of hydrogen ions.
</span>[H⁺] = 10∧-pH.
pH = 4 → [H⁺]₁ = 10⁻⁴ M = 0,0001 M.
pH = 5 → [H⁺]₂ = 10⁻⁵ M = 0,00001 M.
[H⁺]₁ / [H⁺]₂ = 0,0001 M / 0,00001 M.
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3 years ago
A cube has a mass of 42 grams and a volume of 15 cubic centimeters. What is it’s density?
deff fn [24]

Answer:

2.8g/cm³

Explanation:

Given parameters:

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Unknown:

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So;

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Answer:

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Did u mean mass of potassium nitrate or the mass of nitrogen in potassium nitrate

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