1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dolphi86 [110]
4 years ago
6

The composition of rocks affects their densities and the densities of Earth’s layers. Use what you have learned and the informat

ion in the table to answer the question. In which order would these rocks and minerals be found in the layers of Earth from the crust to the lower mantle? eclogite, perovskite, rhyolite, stishovite stishovite, rhyolite, perovskite, eclogite stishovite, perovskite, eclogite, rhyolite rhyolite, eclogite, perovskite, stishovite
Chemistry
2 answers:
Nana76 [90]4 years ago
8 0

Answer:

d

Explanation:

MA_775_DIABLO [31]4 years ago
5 0

Answer:

<u><em>D. rhyolite, eclogite, perovskite, stishovite</em></u>

Explanation:

You might be interested in
The duration (length of time) of a lunar eclipse is
vlada-n [284]

Answer:

It is longer than a solar eclipse

7 0
3 years ago
Read 2 more answers
A sample of an ideal gas has a volume of 2.31 l at 287 k and 1.10 atm. calculate the pressure when the volume is 1.45 l and the
balu736 [363]
Hello!

The pressure of the Ideal Gas when the volume is 1,45 L and the temperature is 298 K is 1,82 atm.

To solve this problem we need to apply the Ideal Gas Law for the initial conditions and the final ones, clearing the equation for the number of moles (n) and the ideal gas constant (R) which remain constant:

P_n*V_n=n*R*T_n \\ \\ n*R= \frac{P_n*V_n}{T_n}

Now we match n*R for the initial conditions (1) and the final ones (2), clearing the equation for P₂

\frac{P_1*V_1}{T_1}= \frac{P_2*V_2}{T_2} \\ \\ P_2= \frac{P_1*V_1*T_2}{T_1*V_2}= \frac{1,10 atm*2,31 L *298 K}{287K*1,45 L}=1,82 atm

Have a nice day!

7 0
3 years ago
What is the Celsius temperature of 1 mole of a gas that has an average kinetic energy of 3,866 joules?
Anna [14]
Temperature can be calculated using the average kinetic energy. The ideal gas equation is being related to the average molecular kinetic energy.
<span>
PV = nRT
</span><span>PV = (2/3) N(0.5mv^2)
</span><span>
By substituting and simplifying, we eventually get the equation.
</span><span>
KE = (3/2)RT</span>
T = 3866 x 2 / 8.3145 x 3 = 309.98 K or 36.83 degrees Celsius
6 0
4 years ago
Translation: Explain the importance of energy levels,
tigry1 [53]

Answer: Formation of a stable Duplet or Octet structure

Explanation:

Energy levels refers to the definite amount of energies that electrons can have when occupying specific orbitals.

Examples are:

Level 1 as in 1s

Level 2 as in 2s, 2p

Level 3 as in 3s 3p 3d

Level 4 as in 4s 4p 4d 4f

Level 5 as in 5s .......

Level 6 as in 6s .........

Electrons can be excited to higher energy levels by absorbing energy from the surroundings during chemical reactions and so forming chemical bonds like ionic, covalent etc.

A perfect example is Sodium (Na) and Chlorine (Cl) in Sodium chloride (NaCl)

Sodium has atomic number of 11, so energy level is 1s2, 2s2 2p6, 3s1

Chlorine has atomic number of 17, so energy level is 1s2, 2s2 2p6, 3s2 3p5

You will notice that the both Na and Cl, has electrons in the energy level 3. Then, the bond formed must be one that lead to the formation of a OCTET structure: as in Na gives off its 3s1 electron TO Cl.

Thus, Cl now becomes 1s2, 2s2 2p6, 3s2 3p6 - an OCTET STRUCTURE (with completely filled outershell and full energy level 3) in NACl.

So, a duplet or Octet structure is the answer

8 0
4 years ago
Convert 2.57 x 10 10 atoms of Cr to moles
tatiyna

Answer:

The mole is simply a very large number that is used by chemists as a unit of measurement.

Explanation:

The mole is thus the link between the micro world of atoms and molecules, and the macro world of grams and litres, the which we can easily measure by mass or volume. The masses for a mole of each element are given on the periodic table as the atomic weight. So, if have 12 g of  

C , I know, fairly precisely, how many atoms of carbon I have. Given this quantity, I know how many molecules of  O 2  are required to react with the  C , which I could measure by mass or by volume.

6 0
3 years ago
Other questions:
  • Why does the temperature of different layers of the atmosphere vary
    10·1 answer
  • Please help me. My chemistry teacher is not teaching us doing this epidemic
    13·1 answer
  • When two 1s hydrogen atoms combine to form h2, the bond formed is:?
    13·1 answer
  • The acceleration of this ball
    14·1 answer
  • Calculate the pH of a buffer solution prepared by dissolving 0.20 mole of cyanic acid (HCNO) and 0.80 mole of sodium cyanate (Na
    15·1 answer
  • Question is in the photo​
    6·1 answer
  • Predict the approximate Ksp of Cuz(AsO4)2 based on the measured potential of Cell 7. Use the equation given in the Background.
    8·1 answer
  • PLEEAASSEE HELP ITS ALREADY WAY PAST DUE AND ILL GIVE BRAINLIEST
    14·1 answer
  • B. If you had 65.0 grams of charcoal, how many grams of black powder could you make?
    11·1 answer
  • Which can occur during a physical change? (Select all that apply.)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!