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k0ka [10]
3 years ago
9

A website publishes an article arguing that synthetic materials do not benefit society because they are created in a lab. Do you

think the website is a reliable source? Explain.
Chemistry
1 answer:
Diano4ka-milaya [45]3 years ago
6 0

The website is not a reliable source because the authors of the article may or may not be experts in science.

The reliability of information depends on its origin. If information originates from experts who have experience in the field, then it is regarded as being reliable.

However, the information posted on the website may not have emanated from experts because it has no empirical backing for its claims. Hence, the website is not a reliable source.

Learn more: brainly.com/question/5624100

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Air in a closed cylinder is heated from 15°C to 36°C. If the initial pressure is 1000 torr, determine what is the final pressure
Bingel [31]

Answer:

1072 torr

Explanation:

To answer this problem we can use <em>Gay-Lussac's law</em>, which states:

  • P₁T₂=P₂T₁

Now we convert the given temperatures into K:

  • T₁ = 15°C ⇒ 15+273.16 = 288.16 K
  • T₂ = 36°C ⇒ 36+273.16 = 309.16 K

We <u>input the data</u>:

  • 1000 torr * 309.16 K = P₂ * 288.16 K

And <u>solve for P₂</u>:

  • P₂ = 1072 torr
7 0
3 years ago
when a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room. which sentence explains t
kvasek [131]
The correct answer based on the given question above would be the first option. <span>When a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room because gases do not have a definite volume. Hope this answer helps.</span>
3 0
4 years ago
Read 2 more answers
Which of these best explains why the hydrogen Adams in a water molecule are attracted to Cl- ions in sodium chloride (NaCl)?
Nostrana [21]

Answer:-

The hydrogen atoms have partial positive charges

Explanation:-

In a water molecule there are twp atoms hydrogen and oxygen.

Oxygen has more electronegativity than hydrogen. So the electrons in the bond between Oxygen and hydrogen are more towards oxygen. So hydrogen has a partial positive charge.

The Cl- has negative charge. Positive charge is attracted by negative charge.

Due to this hydrogen atoms in a water molecule are attracted to Cl- ions in sodium chloride (NaCl).

7 0
4 years ago
The density of water is 62.4 lb/ft3. If a swimming pool holds 10,000 gallons of water, the weight of water in the pool is lbs. (
Semenov [28]
In this case, you are given the water density (62.4lb/ft3) and the water volume (10,000 gallons). But the unit used in the density and gallon is different, so you need to convert it. The calculation would be:

mass= density * volume
mass= 62.4 lb/ft3 * 10,000 gallons * (231 inch3/gallon) * (1 ft3/ 1728 inch3)
mass= 83,416.66 lbs= 81417 lbs
3 0
3 years ago
A sample of helium has a temperature of 450 K. The gas is cooled to 248.9 K at which time the gas occupies 103.4 L? Assume press
Umnica [9.8K]

Answer:

\boxed{\text{163.3 L}}

Explanation:

The pressure is constant, so, to calculate the volume, we can use Charles' Law:

\dfrac{V_{1}}{T_{1}} = \dfrac{V_{2}}{T_{2}}

Data:

V₁ = ?;            T₁ =    450 K

V₂ = 103.4 L; T₂ = 284.9 K

Calculation:

\dfrac{ V_{1}}{450} = \dfrac{ 103.4}{284.9}\\\\{ V_{1}} = 450 \times \dfrac{103.4}{284.9}\\\\ = \textbf{163.3 L}\\\text{The original volume of the helium was $\boxed{\textbf{163.3 L}}$}

5 0
3 years ago
Read 2 more answers
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