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Vilka [71]
3 years ago
8

What causes an earthquake?

Chemistry
1 answer:
ElenaW [278]3 years ago
3 0

Answer:

Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes seismic waves to be released, causing the ground to shake.

Earthquakes are caused by movement in the tectonic plates(known as plate tectonics).

This usually happens in plate boundaries(where one plate meets another), due to the pressure that builds up as the plates try to move, since tectonic plates are constantly moving

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What gas comes off it
Andreyy89

Answer:

the answer to this question is hydrogen gas

6 0
3 years ago
What is the mass of an object if force of -136 n can make it accelerate at -9.6 m/s^2
vampirchik [111]

The answer for the following problem is mentioned below.

  • <em><u>Therefore the mass of an object is 14.16 grams.</u></em>

Explanation:

Force:

The push or pull on an object with mass that cause change in the velocity

It is a vector quantity.

The formula to calculate the force is:

F = m × a

Given:

Force (F) = -136 N

acceleration (a) = -9.6 m/s^2

To calculate:

mass of the object (m)

We know that,

<em>F = m × a</em>

where,

F represents the force of the object

m represents mass of an object

a is acceleration of an object

From the equation;

-136 = m × -9.6

m = \frac{-136}{-9.6}

m = 14.16 grams

<em><u>Therefore the mass of an object is 14.16 grams.</u></em>

3 0
4 years ago
In carbon dioxide, London dispersion forces are the only intermolecular forces of
LUCKY_DIMON [66]

Answer:

true

Explanation:

CO has two C-O bonds. The dipoles point in opposite directions, so they cancel each other out. Thus, although CO₂ has polar bonds, it is a nonpolar molecule. Therefore, the only intermolecular forces are London dispersion forces.

8 0
3 years ago
If a drum skin vibrates with a frequency of 100 Hz, how many times does it move up and down each second?
bogdanovich [222]
100 HZ the drum will move up and down 30 each second
4 0
3 years ago
Pls help me with is question.​
Dennis_Churaev [7]

Answer:

25cm³ = 0.025L of H2So4

Molarity of H2SO4 = 1moldm-³

Recall ... 1dm-³ = 1L

So the Molarity can also be 1mol/L

Mole = Molarity x volume in L

Mole of H2SO4 = 1mol/L x 0.025L

=0.025Moles of Sulphuric acid reacted.

From the equation of reaction

1mole of H2SO4 reacts to produce 1mole of Copper sulphate crystal

Since their Mole ratio is 1:1

It means that Since 0.025mole of H2SO4 reacted.... 0.025mole of CuSO4.5H2O would be produced

Nice.. OK

So we know the moles of CuSO4.5H2O produced

We can get the Mass

Recall

From

Mole=Mass/Molar Mass

Mass = Mole x Molar Mass

Molar Mass of CuSO4.5H2O = 64 + 32 + 16x4+ 5(2+16)

Mm= 250g/mol

Mass = 0.025mol x 250g/mol

= 6.25g of CuSO4.5H2O crystals Would be PRODUCED.

5 0
3 years ago
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