On a seismogram, the first recorded waves are the P type, followed by the S type and, finally, the surface waves. Option A) A and B travel through Earth's interior.
Note: the question was answered according to the attached image. Look at the seismogram and the explanation, and if your image differs from this one, apply the same reasoning to answer the question.
When rocks break during plate movements, they generate waves that propagate, moving inside the Earth and on its surface. These are the seismic waves.
There are three types of waves,
P waves are the fastest in moving and can be transmitted through different materials, liquid or solid.
S wavesare slower and can not be transmitted through liquid masses.
Surface waves are the slowest ones.
Due to the difference in the speed, the first recorded waves on a seismograph during an earthquake are the P waves, followed by the S waves, and finally, the surface waves.
The difference in waves' speed is used to determine the location of the earthquake focus and the structures of Earth.
As waves move through different materials, they change their speed. This change leads scientists to know what type of masses they are going through.
Following the waves from earthquake focus and recording their travel speed is helpful to determine the structures of Earth's interior.
The provided seismogram shows,
A- P waves ⇒ Transmitted in the interior of the Earth ⇒ first ones to be recorded. They are absorbed by liquid and solid medium.
B- S waves ⇒ Transmitted in the interior of the Earth ⇒ second ones to be recorded. They are absorbed by solid medium.
C- Surface waves ⇒ Transmitted in the syperficial layers of the Earth ⇒ last ones to be recorded. They are the slowest ones.
According to this information, we can assume that the correct option is a. Wave A and Wave B travel through Earth's interior.
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New information changed the understanding of the atom’s structure.
O High temperatures and location in high latitudes
O Moderate temperatures and location in mid to high latitudes
O Warmer temperatures and location around the equator
Answer: D
Explanation:
Answer: High temperatures and location in high latitudes
Explanation:
b. I
c. N
d. O
e. C
(2) Br2(l) at 266 K (4) Br2(g) at 332 K
Answer:approximately 115.33 grams of H2O are needed to react with 3.20 moles of CaC2 in the given reaction.
Explanation:To determine how many grams of H2O are needed to react with 3.20 moles of CaC2 in the given reaction, we can use stoichiometry and the molar ratios between CaC2 and H2O in the balanced chemical equation.
First, let's write down the balanced chemical equation:
CaC2 (s) + 2H2O (l) -> C2H2 (g) + Ca(OH)2 (aq)
From the balanced equation, we can see that 1 mole of CaC2 reacts with 2 moles of H2O.
Now, let's use this information to calculate the moles of H2O required to react with 3.20 moles of CaC2:
Moles of H2O = (3.20 moles CaC2) * (2 moles H2O / 1 mole CaC2)
Moles of H2O = 3.20 moles * 2
Moles of H2O = 6.40 moles
Now that we know we need 6.40 moles of H2O, we can calculate the grams of H2O needed using the molar mass of H2O:
Molar mass of H2O = 2(1.01 g/mol) + 16.00 g/mol = 2.02 g/mol + 16.00 g/mol = 18.02 g/mol
Now, calculate the grams of H2O:
Grams of H2O = (6.40 moles) * (18.02 g/mol)
Grams of H2O ≈ 115.33 grams
So, approximately 115.33 grams of H2O are needed to react with 3.20 moles of CaC2 in the given reaction.