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Akimi4 [234]
2 years ago
15

Which expression is a measurement of density? 20 g/cm 2 5.2 cm 3 0.71 mg 5.13 kg/L

Chemistry
2 answers:
Elena-2011 [213]2 years ago
7 0

Answer:

5.13 kg/L

Explanation:

The units for density are <u>mass divided by volume</u>. This means that for an expression to be a measurement of density it would need to have an unit of mass in the numerator, and an unit of volume in the denominator.

With that in mind, kg is a unit of mass, and L is a unit of volume, so any positive number followed by "kg / L" is a measurement of density.

algol [13]2 years ago
3 0

Answer:

5.13 kg/l

Explanation:

brainly.com/question/6123981

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3 years ago
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What is the scientific notation of 36000x10 ex.10?
Vedmedyk [2.9K]

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3.6 times 10^4

Explanation:

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5 0
3 years ago
How much time would it take to distribute one avagadro's number of wheat grains if 10^10 grains are A)1.9*10^2 years B)1.9*10^10
Makovka662 [10]

Answer:

It takes  1.9 \times 10^{6} years to distribute all the grains.

Explanation:

In one second, 10^{10} grains of wheat are distributed.

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1 avogadro number = 6.022 \times 10^{23}

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Number of grains distributed in 1 year= 8.64 \times 10^{14} \times 365

                                 = 3.1536 \times 10^{17}

Time taken = \frac{Number of grains to be distributed}{grains distributed in 1 year}

            = \frac {6.022 \times 10^{23}}{3.1536\times 10^{17}}

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3 years ago
What is the total charge of an iron nucleus
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I believe it’s a positive charge
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3 years ago
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Answer:

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Water is included as a compound!

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