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iVinArrow [24]
3 years ago
5

suppose that recording station N located 200 km north of the epicenter of an earthquake, and recording station S is located 100

on south of the epicenter of the same earthquake. Which of the following statements would be true
Chemistry
1 answer:
andrezito [222]3 years ago
6 0

Answer:

c.The value of T at Recording Station N would be greater than T at Recording Station S.

Explanation:

We can deduce from the information provided that the value of T at recording station N would be greater than T at recording station S.

This problem relates distance with time.

       Speed  = \frac{disance}{time}

                  Distance  = Speed x time

  • Just like any other physical quantity, speed of a substance is directly related to time.
  • The larger the time taken the farther the distance it will cover assuming the velocity is constant.
  • Earthquake waves for example moves at constant speed with a unique velocity in earth materials.
  • The farther the distance, the more time it will take to reach the seismic recording station.
  • Since N is a distance of 200km from the epicenter, it will take a greater time and have a higher reading of T to reach the station.
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Select the electron-domain geometry for a molecule with three bonding domains and one nonbonding domain.
mamaluj [8]

Answer: C) Tetrahedral

Explanation:

The number of electron pairs is 4 that means the hybridization will be sp^3 but as there are three bonding domains and one nonbonding domain, thus electronic geometry is tetrahedral and the molecular geometry will be trigonal pyramidal.

Linear electron geometry is possible when number of electron pairs is 2 and the hybridization will be sp^2.

Trigonal planar geometry is possible when number of electron pairs is 3 and the hybridization will be sp^3.

Trigonal bipyramidal geometry is possible when number of electron pairs is 5 and the hybridization will be sp^3d.

Octahedral geometry is possible when number of electron pairs is 6 and the hybridization will be sp^3d^2.

6 0
3 years ago
Determine the heat given off to the surroundings when 9.0 g of aluminum (fm = 26.98) reacts according to the equation 2al + fe2o
Akimi4 [234]

Hey there!:

Number of moles:

Molar Mass Al = 26.98 g/mol

n = mass / molar mass

n = 9.0 / 26.98

n = 0.3336 moles of Al

Given the reaction :

2 Al + Fe2O3 = Al2O3 + 2 Fe

From the equation, 2 moles of Al give off 849 kJ of heat :

Actual heat given off :

0.3336 / 2 * 849 =

0.3336 / 1698 = 1.4*10² Kj


Hope that helps!


8 0
2 years ago
How many moles of C2H2 are needed to react completely with 84 mol O2
Butoxors [25]

Balanced chemical equation:

2 C2H2 + 5 O2 = 4 CO2 + 2 H2O

2 moles C2H2 ---------------- 5 moles O2
moles C2H2 ------------------ 84 moles O2

moles C2H2 = 84 * 2 / 5

molesC2H2 = 168 / 5 => 33.6 moles of C2H2
4 0
3 years ago
Lots of points for help!!!!
Svetllana [295]

Answer:

a+b=C

Explanation:

8 0
2 years ago
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