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Sergeeva-Olga [200]
3 years ago
13

Explain how activation energy is related to exothermic and endothermic reactions.

Biology
1 answer:
Paul [167]3 years ago
4 0

Explanation:

Some chemical reactions need a constant input of energy to take place. They are called endothermic reactions. ... From the graphs, you can see that both types of reactions need the same amount of activation energy in order to get started. Only after it starts does the exothermic reaction produce more energy than it uses.

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John and Jane Jones’ newborn baby girl, Leah, has just been diagnosed with galactosemia. Prior to their genetic counseling appoi
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Pedigree is the symbolic representation of the history of an individual's family connections, presenting their ascendants and descendants in an organized manner. This is an important instrument in the genealogical process, as it is a way of gathering data about the ancestors of the members who participated in a person's family building so that the connections between these individuals are established.

The family pedigre shown in the above question would be:

Hanna's mother and Hanna's father have three daughters of Hope's order, Holly and Hanna. Hanna and Harry have a son named John. John is married to Jane. His children are Lee and Leah (diagnosed with galactosemia ). Janes's mother is Hilda and the brother is Joe. Joe is married to Jen and his son is Les.

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Which of these investment plans best reflects diversification?
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"Kenya invests in stocks, bonds, and mutual funds" is the one among the following choices given in the question that <span>these investment plans best reflects diversification. The correct option among all the options that are given in the question is the second option or option "B". I hope it helps you.</span>
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4 years ago
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1. Which one takes longer? Primary succession or secondary succession?
NNADVOKAT [17]

Answer:

Primary succession because you have to find the resources to be able to produce that succession. Hope that helps!

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3 years ago
The stomach helps to digest food with<br> processes.
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Chemical and Physical Processes

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Match the layer of the earth with its best description.
anygoal [31]

The right matches are:

1. The inner core is matched with F) the solid iron.

The inner core, or seed, is the solid part in the center of the Earth. It is a ball of 1,220 kilometers in radius located in the center of the outer core (liquid). It is composed of an alloy of iron and nickel, as well as lighter elements. The boundary between the outer core and the inner core is called Lehmann's discontinuity, or ICB (for inner core boundary).


2. The outer core is matched with G) very dense liquid of iron and sulfur

The outer core is the liquid part of the Earth's core, an intermediate layer located above the solid seed (inner core) and below the Earth's mantle. Like the seed, the core is a metal alloy, consisting mainly of iron and nickel. The liquid of the outer core is animated by rapid convective movements that induce a dynamo effect at the origin of the Earth's magnetic field.


3. The lower mantle is matched with C) layer just outside of the outer core

The lower mantle is sometimes called the "mesosphere". It extends from 700 to 2900 km deep.


The lower mantle is responsible for a particular phenomenon: hot spots. Hot spots are volcanoes that are not born at the border of two tectonic plates, unlike ordinary volcanoes, but in the middle of these plates. They occur when the god chief and deceased is irregular. The lava from these volcanoes is more gaseous and comes from the depths of the mantle (hence the lower mantle), which allows to deduce the shape of the lava at this level.


4. The upper mantle is matched with B) made of large plates that move

The top of the mantle and the crust form the lithosphere, which can reach 300 km below the continents (since the oceanic crust is much thinner). The part of the lithosphere that is not the crust (hence the top of the upper mantle) is very brittle (which allows it to move). From 200 to 700 km deep, we find the "asthenosphere", which is the plastic part of the upper mantle.


5. The crust layer is matched with D) thin, rigid surface of Earth

The earth's crust is the superficial and solid part of the material from which the Earth is made. This is the upper part of the lithosphere (which constitutes the tectonic plates).


The boundary between the Earth's crust and the upper mantle is the Mohorovicic discontinuity.


The earth's crust exists in two radically different "varieties", the continental crust, of predominantly granitoidal petrological composition, and the oceanic crust of essentially basaltic nature.


6. The lithosphere is matched with E) layer that includes the asthenosphere

The lithosphere is the rigid terrestrial envelope of the Earth's surface. It includes the earth's crust and part of the upper mantle.


It is divided into a number of tectonic plates, also called lithospheric plates.


The lithosphere, relatively rigid on time scales of the order of 1 to 10 Ma, rests on the asthenosphere, solid but ductile, more easily deformable because it consists of rocks under physico-mechanical conditions (pressure, temperature, therefore speed increased deformation), leading to a relatively low viscosity.


7. The asthenosphere is matched with A) platic portion of the upper mantle of the Earth.

The asthenosphere (from the Greek asthenos, without resistance) is the ductile part of the upper terrestrial mantle. It extends from the lithosphere to the lower mantle for 700 kilometers.


This concept emerged in the late 1960s with the plate tectonics revolution and the mesosphere concept. The asthenosphere is between the lithosphere and the mesosphere.

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