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3 years ago

Which factor is most important to consider when evaluating a journal article about global warming?

Chemistry

2 answers:

Strike441 [17]3 years ago

7 0

Answer:

Does the article contain facts or only opinions? - B)

meriva3 years ago

4 0

Answer:

The correct answer will be option-B.

Explanation:

Global warming is a hot topic of debate in the science world on how to resolve the environmental issues created by global warming. The scientific journals usually contain the articles related to the new research and scientific discoveries reviewed by the peer-review fellow scientists.

The journals ensure that the research articles to be published containing the experimental data which supports the hypothesis which should not be plagiarized. The article should be based on the reviewed facts and not personal small opinions. So to evaluate articles on global warming, one must ensure that the data should not be plagiarized.

Thus, Option-B is the correct answer.

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Which equation shows how wavelength is related to velocity and frequency?

Nataly_w [17]

Answer:

The correct option is the option;

$\lambda = \dfrac{v}{f}$

Explanation:

The wavelength of a wave is the distance between two successive crests of the wave

Therefore, the wavelength, λ, is given by the fraction of the velocity, <em>v</em>, of the wave divided by the frequency, <em>f</em>, (the number of cycles that pass through a point) of the wave

Mathematically, we have;

$The \ wavelength, \ \lambda = \dfrac{The \ wave \ velocity, \ v}{The \ wave \ frequency, \ f}$

$\lambda = \dfrac{v}{f}$

4 0

3 years ago

Analysis of a compound of sulfur, oxygen and fluorine showed that it is 31.42% S and 31.35% O, with F accounting for the remaind

Leya [2.2K]

Answer:

The molecular formula is SO2F2

Explanation:

Step 1: Data given

Suppose the mass of compound = 100 grams

The compound contains:

31.42 % S = 31.42 grams S

31.35 % O = 31.35 grams O

100 - 31.42 - 31.35 = 37.23 F

Molar mass of S = 32.065 g/mol

Molar mass F = 19.00 g/mol

Molar mass O = 16.00 g/mol

Step 2: Calculate moles

Moles = mass / molar mass

Moles S = 31.42 grams / 32.065 g/mol

Moles S = 0.9799 moles

Moles 0 = 31.35 grams / 16.00 g/mol

Moles 0 = 1.959 moles

Moles F = 37.23 grams / 19.00 g/mol

Moles F = 1.959 moles

Step 3: Calculate mol ratio

We divide by the smallest amount of moles

S: 0.9799 / 0.9799 = 1

F: 1.959/ 0.9799 = 2

O : 1.959 / 0.9799 = 2

The empirical formula is SO2F2

This formula has a molecular mass of 102.06 g/mol

This means the empirical formula is also the molecular formula : SO2F2

3 0

3 years ago

How many molecules (or formula units) are in 138.56 g C4H10 Express your answer using four significant figures.

Semenov [28]

Answer:

dont buy cheap and off we went

7 0

3 years ago

In molecular oxygen (O=O) which atom is partially positive?

saveliy_v [14]

the oxygen atom

Explanation:

Water is a molecular compound consisting of polar molecules that have a bent shape. The oxygen atom acquires a partial negative charge while the hydrogen atom acquires a partial positive charge.

4 0

3 years ago

Read 2 more answers

Which of the following compounds is not possible?

neonofarm [45]

Answer:

Explanation:

Large chlorine atoms can not fit within the atoms of boron

4 0

3 years ago