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dexar [7]
3 years ago
8

What is the only type of plate inaction that can cause an earthquake to be 9.0 on the Richter Scale?​

Chemistry
1 answer:
Sedaia [141]3 years ago
4 0

Answer: Subduction zone

Explanation: How do we know the subduction zone exists here? Mostly because of geological data left behind by subduction zone earthquakes, known as megathrust earthquakes. Subduction zones are the only type of plate meeting that can cause earthquakes greater than magnitude 8.5, according to the Pacific Northwest Seismic Network.

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What is the coefficient in a chemical equation
GarryVolchara [31]
A coefficient is the number or letter before the variable. The variable is the unknown value.
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4 years ago
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The combustion of 0.590 g of benzoic acid (ΔHcomb = 3,228 kJ/mol; MW = 122.12 g/mol) in a bomb calorimeter increased the tempera
Alenkinab [10]

Answer:

2.943 °C temperature change from the combustion of the glucose has been taken place.

Explanation:

Heat released on combustion of Benzoic acid; :

Enthaply of combustion of benzoic acid = 3,228 kJ/mol  

Mass of benzoic acid = 0.590 g

Moles of benzoic acid = \frac{0.590 g}{122.12 g/mol}=0.004831 mol

Energy released by 0.004831 moles of benzoic acid on combustion:

Q=3,228 kJ/mol \times 0.004831 mol=15.5955 kJ=15,595.5 J

Heat capacity of the calorimeter = C  

Change in temperature of the calorimeter = ΔT = 2.125°C

Q=C\times \Delta T

15,595.5 J=C\times 2.125^oC

C=7,339.05 J/^oC

Heat released on combustion of Glucose: :

Enthaply of combustion of glucose= 2,780 kJ/mol.

Mass of glucose=1.400 g

Moles of glucose =\frac{1.400 g}{180.16 g/mol}=0.007771 mol

Energy released by the 0.007771 moles of calorimeter  combustion:

Q'=2,780 kJ/mol \times 0.007771 mol=21.6030 kJ=21,603.01 J

Heat capacity of the calorimeter = C (calculated above)

Change in temperature of the calorimeter on combustion of glucose = ΔT'

Q'=C\times \Delta T'

21,603.01 J=7,339.05 J/^oC\times \Delta T'

\Delta T'=2.943^oC

2.943 °C temperature change from the combustion of the glucose has been taken place.

8 0
3 years ago
An athlete can run 4 m/s. How far can she run in 3 minutes?<br>​
shutvik [7]

Answer:

720

Explanation:

4 m/s

<u>60</u> seconds

                            = 180 seconds

<u>3</u> minutes

<u>4</u> m/s

                             = <u>720 m/s</u>

<u>180</u> seconds

5 0
3 years ago
What is the formula of a compound formed between nitrogen (N) and potassium (K)?
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How many electrons are in Hydrogen?
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1. Hydrogen has 1 electron.
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