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3 years ago

15

Which of the following would most likely make up a team of scientists?

1 answer:

tankabanditka [31]3 years ago

5 0

Answer:

a chemistist

Explanation:

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ZanzabumX [31]

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The process of pouring a mixture though a filter to catch the larger particles while allowing the smaller particles to pass thro

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3 years ago

Select the correct answer.

almond37 [142]

Answer:

D. 5 moles

Explanation:

C3H8 + 5O2 → 4H2O + 3CO2

5 mol 3 mol

So, to make 3 mol CO2 5 mol O2 are needed.

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3 years ago

What is the molarity of 2.00 L of a solution that contains 14.6 g NaCl?

White raven [17]

Answer: The molarity of the solution is 0.125 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

$Molarity=\frac{n}{V_s}$

where,

n = moles of solute

$V_s$ = volume of solution in L

moles of $NaCl$ = $\frac{\text {given mass}}{\text {Molar mass}}=\frac{14.6g}{58.5g/mol}=0.250mol$

Now put all the given values in the formula of molality, we get

$Molarity=\frac{0.250mol}{2.00L}=0.125M$

Therefore, the molarity of the solution is 0.125 M

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The oxidation numbers of nitrogen in nh3, hno3, and no2 are, respectively:

vovikov84 [41]

The oxidation numbers for Nitrogen are respectively -3, +5, +4

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