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Hoochie [10]
3 years ago
13

Which unit represents 100 meters?

Chemistry
2 answers:
adell [148]3 years ago
6 0

Answer:

Hectometer.

Explanation:

  • <u><em>Hecto- means 100; a hectometer is 100 meters.</em></u>
Oduvanchick [21]3 years ago
4 0
<h2>Answer:</h2>

<u>The unit represents 100 meters is called </u><u>hectometer</u>

<h2>Explanation:</h2>

The hectometer is not commonly used unit of length in the metric system. This unit is equal to one hundred metres.

The word hectometers comes from a combination of two words "metre" which is unit of length and the SI prefix "hecto-" which means "hundred".

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Answer:

The discovery of early helium supports the Big Bang Theory because helium is something that would have been a product of a large explosion. Helium is also the most proliferate element in the universe.

Explanation:

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6 0
3 years ago
Read 2 more answers
A reactant and a product of nuclear fission.<br><br> A. Neutron<br> B. Gamma
Readme [11.4K]

Answer:

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Explanation:

3 0
2 years ago
Consider a mixture of NaCl and NaNO3 that is 31.8% Na by mass. Calculate the percentage by mass of NaCl in the mixture.
lutik1710 [3]

<u>Answer:</u> The percentage by mass of NaCl in the mixture is 38.5 %

<u>Explanation:</u>

To calculate the mass percentage of element in compound, we use the equation:

\text{Mass percent of element}=\frac{\text{Mass of element}}{\text{Mass of compound}}\times 100      .......(1)

  • <u>For NaCl:</u>

Mass of sodium element = 23 g

Mass of NaCl = 58.5 g

Putting values in equation 1, we get:

\text{Mass percent of sodium element}=\frac{23g}{58.5g}\times 100=39.32\%

Mass fraction of sodium metal in NaCl = 0.3932

  • <u>For NaNO_3 :</u>

Mass of sodium element = 23 g

Mass of NaNO_3 = 85 g

Putting values in equation 1, we get:

\text{Mass percent of sodium element}=\frac{23g}{85g}\times 100=27.1\%

Mass fraction of sodium metal in sodium nitrate = 0.271

Let us assume the mass fraction of NaCl in the mixture is 'x'

So, the mass fraction of NaNO_3 in the mixture will be '(1-x)'

We are given:

Percent by mass of Na in the mixture = 31.8 %

Mass fraction of Na in the mixture = 0.318

Evaluating the mass fraction of NaCl in the mixture:

[(x\times 0.3932)+((1-x)\times 0.271)]=0.318

x = 0.385

Percent by mass of NaCl in the mixture will be = (0.385\times 100)=38.5\%

Hence, the percentage by mass of NaCl in the mixture is 38.5 %

4 0
3 years ago
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maxonik [38]
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4 0
3 years ago
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How do catalysts increase the rate of a chemical reaction?
uranmaximum [27]
The correct answer is A
4 0
3 years ago
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