Why do some earthquakes cause more damage than others?

2 answers:

7 0

Why Some Earthquakes Are More Destructive. ... If your heart beats rapidly during an earthquake, it still doesn't compete with high-frequency waves generated by the quake. These waves shake the ground faster than your ticker's thrumming and cause the most damage to smaller structures, such as houses.

daser333 [38]4 years ago

6 0

Because earthquakes have different magnitudes. it depends on how the earthquake happens. the magnitudes measured by richter scale usually.

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1) In the given examples:

Al is a metal, Na is an alkali metal while P is a non-metal

The decreasing order of conductivity would be:

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Both Al and Ga are metals while B is metalloid.

Among Al and Ga, Al is a solid at room temperature and a better conductor of electricity. hence the decreasing order would be:

Al > Ga > B

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If 190.5 grams of copper metal reacts, how many grams of silver metal will be produced?

Lubov Fominskaja [6]

Answer:

646.8 g

Explanation:

It really depends what salt silver cation makes in the context of this problem. In this problem, we have a single displacement reaction in which copper metal displaces silver cation from a salt to produce silver metal. Based on the charge of the anion in the salt, we may have differently balanced chemical equations.

Since silver cation mostly makes insoluble salts and we need a soluble one for a single displacement reaction, we'll use silver nitrate as our example, as it's the most common soluble silver salt. We have the following reaction:

$Cu(s)+2AgNO_3(aq)\rightarrow Cu(NO_3)_2(aq)+2 Ag(s)$