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3 years ago

NEED HELP!!!!!!! How were scientists able to study the center of the Earth

Chemistry

2 answers:

Katarina [22]3 years ago

7 0

Instead of using CAT-scans and X-rays to see the center of the Earth, researchers use waves emitted by earthquakes to get a sense of the planet's innards. Just like an X-ray, seismic waves bounce around, changing direction and speed based on the material they pass through.

lana [24]3 years ago

6 0

They use waves that sense earthquakes

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Why are gold and platinum sutible for making jewellery ?

Anon25 [30]

Answer:

Platinum Gold and silver are used to make jewellery because of the following reasons. They are highly lustrous metals which are resistant to corrosion. They are highly malleable and ductile so can be transformed into any shape or design.

Explanation:

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3 years ago

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A class wants to find the ideal temperature for plants to grow in a terrarium. If the students set up several terrariums, what s

Veseljchak [2.6K]

It would be B because you want to know which TEMPERATURE is the best for the plant. Different brightness for a bulb will give different amounts of heat. Since the amount of heat is your INDEPENDENT VARIABLE, you have to change the amount of heat for each plant, so the brightness of bulbs. Therefore, B is your answer!

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3 years ago

For which characteristic would a human MOST LIKELY selectively breed a house cat?

madreJ [45]

B. Coat color I’m pretty sure

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4 years ago

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How many grams of water will form if 10.54 g H2 react with 95.10 g O2?

sergiy2304 [10]

Answer:

94.0 g H2O

Explanation:

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4 years ago

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An empty water bottle is full of air at 15°C and standard pressure. The volume of the bottle is 0. 500 liter. How many moles of

drek231 [11]

The moles of gas in the bottle has been 0.021 mol.

The ideal gas has been given as the gas where there has been negligible amount of interatomic collisions. The ideal gas equation has been given as:

$PV=nRT$

<h3>Computation for the moles of gas</h3>

The gi<em>ve</em>n gas has standard pressure, $P=1\rm atm$

The volume of the gas has been, $V= 0. 500 \;\rm L$

The temperature of the gas has been, $T=15^\circ \text C\\
T=288\;\rm K$

Substituting the values for the moles of gas, <em>n:</em>

<em />

<em /> $\rm 1\;\times\; 0. 500 =\textit n\;\times\;0.08214\;atm.L/mol.K\;\times\;288\;K\\\\
\textit n=\dfrac{0. 500}{0.08214\;\times\;288} \;mol\\\\
\textit n=0.021\;mol$

The moles of gas in the bottle has been 0.021 mol.

Learn more about ideal gas, here:
brainly.com/question/8711877

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3 years ago