How to convert particles to mass

Which element in period 2 of the periodic table is the most reactive nonmetal?

ziro4ka [17]

d. flourine fluorine is the most reactive halogen

5 0

2 years ago

Find a recent article (no more than 3 years old) that discusses a new discovery or

miss Akunina [59]

<h3>Answer:</h3>

<h2>Carbon-rich exoplanets may be made of diamonds</h2>

 Date: September 11, 2020

 Source: Arizona State University

Summary: Astronomers have determined that some carbon-rich exoplanets, given the right circumstances, could be made of diamonds and silica.

<h3>Explanation:</h3>

As missions like NASA's Hubble Space Telescope, TESS and Kepler continue to provide insights into the properties of exoplanets (planets around other stars), scientists are increasingly able to piece together what these planets look like, what they are made of, and if they could be habitable or even inhabited.

In a new study published recently in The Planetary Science Journal, a team of researchers from Arizona State University (ASU) and the University of Chicago have determined that some carbon-rich exoplanets, given the right circumstances, could be made of diamonds and silica.

"These exoplanets are unlike anything in our solar system," says lead author Harrison Allen-Sutter of ASU's School of Earth and Space Exploration.

Diamond exoplanet formation

When stars and planets are formed, they do so from the same cloud of gas, so their bulk compositions are similar. A star with a lower carbon to oxygen ratio will have planets like Earth, comprised of silicates and oxides with a very small diamond content (Earth's diamond content is about 0.001%).

But exoplanets around stars with a higher carbon to oxygen ratio than our sun are more likely to be carbon-rich. Allen-Sutter and co-authors Emily Garhart, Kurt Leinenweber and Dan Shim of ASU, with Vitali Prakapenka and Eran Greenberg of the University of Chicago, hypothesized that these carbon-rich exoplanets could convert to diamond and silicate, if water (which is abundant in the universe) were present, creating a diamond-rich composition.

<h2>Diamond-anvils and X-rays</h2>

To test this hypothesis, the research team needed to mimic the interior of carbide exoplanets using high heat and high pressure. To do so, they used high pressure diamond-anvil cells at co-author Shim's Lab for Earth and Planetary Materials.

First, they immersed silicon carbide in water and compressed the sample between diamonds to a very high pressure. Then, to monitor the reaction between silicon carbide and water, they conducted laser heating at the Argonne National Laboratory in Illinois, taking X-ray measurements while the laser heated the sample at high pressures.

As they predicted, with high heat and pressure, the silicon carbide reacted with water and turned into diamonds and silica.

<h2>Habitability and inhabitability</h2>

So far, we have not found life on other planets, but the search continues. Planetary scientists and astrobiologists are using sophisticated instruments in space and on Earth to find planets with the right properties and the right location around their stars where life could exist.

For carbon-rich planets that are the focus of this study, however, they likely do not have the properties needed for life.

While Earth is geologically active (an indicator habitability), the results of this study show that carbon-rich planets are too hard to be geologically active and this lack of geologic activity may make atmospheric composition uninhabitable. Atmospheres are critical for life as it provides us with air to breathe, protection from the harsh environment of space, and even pressure to allow for liquid water.

"Regardless of habitability, this is one additional step in helping us understand and characterize our ever- increasing and improving observations of exoplanets," says Allen-Sutter. "The more we learn, the better we'll be able to interpret new data from upcoming future missions like the James Webb Space Telescope and the Nancy Grace Roman Space Telescope to understand the worlds beyond on our own solar system."

<h2>Hope this helps u...</h2>

7 0

2 years ago

You have a piece of gold and you cut it into smaller pieces. If you could continue cutting, you would eventually separate the go

GREYUIT [131]

Answer: Option (a) is the correct answer.

Explanation:

Atoms are the species which cannot be divided into its constituent particles. These atoms when joined together then they tend to constitute a molecule.

For example, a piece of gold is made up of number of gold atoms.

So, when we cut this gold piece into smaller pieces then its atoms also get separated from each other. But when we separate the gold into tiny pieces that could no longer be divided without losing their gold-like properties then it means that now each of its atoms has been separated out that cannot be divided further.

Thus, we can conclude that you have a piece of gold and you cut it into smaller pieces. If you could continue cutting, you would eventually separate the gold into tiny pieces that could no longer be divided without losing their gold-like properties. These individual component pieces are called atoms.

8 0

3 years ago

Read 2 more answers

A sample of metal has a mass of 23.04 g, and a volume of 5.31 ml. what is the density of this metal?

bija089 [108]

4.33898305 is the density
Divide mass/volume

5 0

2 years ago

Georgina wants to visually represent a polymer. Witch would make that best model?

den301095 [7]

If you want to do the molliecular structure I recommend tooth picks and clay balls

5 0

2 years ago