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vlabodo [156]
3 years ago
5

Is carbon dioxide impure substance? ​

Chemistry
1 answer:
nevsk [136]3 years ago
5 0
Air is a mixture of gasses, including nitrogen, oxygen, carbon dioxide and water vapour, as such it is always chemically impure.
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True or False, according to the Megafauna Extinction Timeline, megafauna and humans arrived 50 thousand years ago?
SashulF [63]

Answer:

False

Explanation:

Megafauna are large animals that roamed the Earth during the Pleistocene Epoch, 1.6 million - 10,000 years ago.

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Is the following true or false every element in the periodic table follows the aufbau principle
gulaghasi [49]

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True

Explanation:

It is true that every element in the periodic table follows the Aufbau's principle.

The principle states that "the sublevels with lower energies are filled up before those with higher energies".

  • Sublevels do not fill up in numerical order.
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7 0
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Which of the following is the method that incorporates designing sustainable living environments with agriculture?
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What are the pros and cons of modern medicine? (I'm rewarding 25 points)
Sergio [31]
Pros: The rate at which modern medicine is advancing is astonishing. You can sit on your couch and watch TV and see commercials for new medications at an alarming pace — and these new medications have reduced our death rates for stroke, heart disease, and cancer. In fact, due to modern medicine, the death rate from heart disease has decreased by 60% since 1970! The death rate for HIV/AIDS has dropped more than 75% since 1995, when its was at its peak.

Cons: However, critics of modern medicine are quick to point out that there is a pill for everything . Yes we are quick to create more drugs, and yes, we are living longer due to said drugs but are we living better?
Medicine has evolved, and we now have surgeons who are able to perform surgeries robotically. But critics point out that medicine has evolved to the point that we are treating disease instead of preventing it .
8 0
3 years ago
Which law is used to determined the relationship between the volume and the number of moles
alukav5142 [94]

Answer:

Avogadro's Law

Explanation:

Avogadro's number (6.23 x 10^23)

Avogadro's law states that the volume and number of moles are proportional if pressure and temp remain constant.

8 0
4 years ago
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