3 years ago

Which human body system do you measure resemble and why

Chemistry

1 answer:

Vitek1552 [10]3 years ago

3 0

The digestive system I think, I could be wrong but that’s what I think

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What is the molality of a solution that is obtained by dissolving 2.922 g of NaCl into 1000.0 g of water if the molar mass of Na

never [62]

In order to find molarity, you must first find the number of moles that was dissolved.

Now, Moles = Mass ÷ Molar Mass

⇒ Moles of NaCl = 2.922 g ÷ 58.44 g/mol

= 0.05 moles

∴ the Molarity of the NaCl is 0.05 M [Option 1]

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3 years ago

6 How many moles are in a 321 g sample of magnesium?

Tatiana [17]

Answer:

13.4mol of Mg

Explanation:

Given parameters:

Mass of magnesium = 321g

Unknown:

Number of moles = ?

Solution:

The number of moles of a substance is given as;

Number of moles = $\frac{mass}{molar mass}$

Molar mass of Mg = 24g/mol

Insert the parameters and solve;

Number of moles = $\frac{321}{24}$ = 13.4mol of Mg

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2 years ago

1. 62 miles per hour into meters per second

Andre45 [30]

Answer:

99758 meters

Explanation: 1 mile=1609 meters. Just multiply 62 with 1609. Let me know if you want a conversion sheet.

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2 years ago

Plot the data points on the graph below and use the corresponding dot colors: 1st data point - blue, 2nd data point - yellow, 3r

yulyashka [42]

Answer:

The answer is an attached file

Explanation:

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2 years ago

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Sodium is a compound<br> O True<br> or<br> O False

MA_775_DIABLO [31]

Answer:

i think false.

Explanation:

tell me if this is wrong

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2 years ago

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