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Gwar [14]
3 years ago
13

Oversteepened slopes often lead to mass movements because

Chemistry
2 answers:
Sidana [21]3 years ago
8 0

The right answer is D.

The slopes are differentiated by the following criteria:

*The inclination;

*The orientation;

*The shape of the slope.

The slope can be measured by degrees or percentages. In the mountains, it is necessary to measure the inclination of a slope by degrees and not by percentages of inclination.

to make the conversion it is necessary to consider that a slope of 45 ° equals a slope of 100%.

Lera25 [3.4K]3 years ago
6 0
<span>D. the angle of their slope is greater than 40 degrees.

</span>Oversteepened slopes often lead to mass movements because <span>the angle of their slope is greater than 40 degrees.
</span>

NOT:
A. the angle of their slope is between 50 and 60 degrees. 
<span>B. plants cannot grow on them. </span>
<span>C. the angle of their slope is less than 50 degrees. </span>

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3 years ago
The melting points of alkaline earth metals are many times higher than those of the alkali metals. Explain this difference on th
7nadin3 [17]

The correct answer is higher melting point, bound by metal metal bonds.

While alkali metals only have one valence electron, alkaline earth metals have two. Metal to metal connections hold the metals together. Alkaline earth metals have a stronger metallic connection and a higher melting point because they have two valence electrons.

the characteristics that Group 2 metals excel in over Group 1 metals.

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As a result, group 2 metals have stronger metallic bonding, which leads to increased cohesive energy and compact atom packing. This explains why group 2 metals are harder and have higher melting and boiling temperatures than group 1 metals.

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3 0
2 years ago
Calcium carbide, CaC2, is manufactured by reducing lime with carbon at high temperature. (The carbide is used in turn to make ac
sweet-ann [11.9K]

The energy of the carbide released is 7262.5MJ.

<h3>What is the energy?</h3>

We know that the reaction between calcium  oxide and carbon occurs in accordance with the reaction; CaO(s)+3C(s)----- > CaC_{2} (s)+CO(g). The reaction is seen to produce 464.8kJ of energy per mole of carbide produced.

Number of moles of CaC_{2} produced = 1000 * 10^3 g/64 g/mol

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1 year ago
Why can it be difficult to demonstrate the Law of Conservation of Mass in action when a chemical reaction takes place in an open
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