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qwelly [4]
3 years ago
6

How is a pure substance different from a mixture?

Chemistry
2 answers:
mr_godi [17]3 years ago
6 0

It is A the answer is A and I'm doing homeschooling and I do quizzes and I got a A on it so the answer is A

QveST [7]3 years ago
3 0
The answer is A. Mixtures can be separated by physical means

A pure substance cannot be separated.
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What is the mass of 3.25 moles of sodium hydroxide (NaOH)?
Dimas [21]

Answer:

<em>1 mole is equal to 1 moles NaOH, or 39.99711 grams.</em>

Explanation:

<em>Hope this helps have a nice day :)</em>

5 0
3 years ago
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What is the concentration of a solution with a volume of 2.5 liters containing 600 grams of calcium phosphate?​
trapecia [35]

Answer:

1.12M

Explanation:

Given parameters:

Volume of solution  = 2.5L

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Unknown:

Concentration  = ?

Solution:

Concentration is the number of moles of solute in a particular solution.

Now, we find the number of moles of the calcium phosphate from the given mass;

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Number of moles of  Ca₃PO₄  = \frac{600}{215}   = 2.79moles

   Now;

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7 0
3 years ago
Mole Conversion: How many molecules are there in 6.70 moles of methane, CH4 ​
raketka [301]

Answer:

Explanation:

1 mol of methane = 6.02 * 10^23 molecules

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8 0
3 years ago
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If the element is closer to the top of the table is it's ionization energy larger?
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Explanation:

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3 years ago
What are some of the Differces between normal cells and cancer cells?
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Explanation:

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