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son4ous [18]
3 years ago
15

List and describe the four layers of the Earth.

Chemistry
2 answers:
ella [17]3 years ago
4 0
Starting at the center, Earth is composed of four distinct layers. They are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust
Sauron [17]3 years ago
4 0

Answer:

Crust- thinest layer; the part we live on

Mantle- just beneath the crust; consists of magma

Outer Core- liquid metal; super hot; thickest layer (i think)

Inner Core- solid metal; SUPER compressed; hottest layer

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rank the group 1a elements tested in order of increasing energy emission when electrons returns to the ground state. explain thi
labwork [276]

<em>Answer:</em>

  • The increasing order of energy emission is as follow
  •                               Li < Na < K < Rb < Cs

<em>Explanation:</em>

  • The Characteristic colors of alkali metals are
  •                   Li-crimson<em> red</em>
  •                   Na- golden<em> yellow</em>
  •                    K- pale <em>violet</em>
  •                    Rb and Cs- <em>violet</em>
  1. These flame color show that when we moved from down the group, the wavelength decreases (frequency increases).
  2. As the color of Li is red that shows ,it has less emission energy as compare to Rb and Cs that have color violet (more emission energy).
3 0
3 years ago
A polypeptide in its native conformation has weak interactions between its R groups. However, when that same polypeptide is dena
sasho [114]

Answer:

A protein is more stable in its native form, because apart of weak interactions between R groups, it also presents other stronger interactions, as those including covalent bonds  

Explanation:

For example, covalent bonds between sulfur atoms when disulfide bridges are built.  These links are very difficult to break and maintains the protein shape.  Disulfide bonds are a few but they use to incide in the structure of native proteins

8 0
3 years ago
What are the properties of PLA plastic PLEASE HELP
Zanzabum

Answer:

The Heat Deflection Temperature (HDT) 126 °F (52 °C)

Density 1.24 g/cm³

Tensile Strength 50 MPa

Flexural Strength 80 MPa

Explanation:.

7 0
3 years ago
In the reaction C5H8+____ O2= 8H2O+5CO2
Romashka-Z-Leto [24]
I don't think that the whole question is posted here, but if you are looking for a way to balance this equation, I may have the answer. I believe the balanced equation is C5H8+9O2=4H2O+5CO2. If you need the reaction type, the answer is combustion. Hope this helps you.
7 0
3 years ago
why is uranium 235 the most commonly used isotope for nuclear fission in current uses in nuclear power generation?
Pachacha [2.7K]
This is because U-235 decays naturally by a process known as alpha radiation. This means that it releases an alpha particle (two neutrons and two protons connected together).
Another reason that U-235 is ideal for producing nuclear power is that unlike most materials, U-235 can undergo induced fission. When a free neutron collides with a U-235 nucleus, the nucleus will usually capture the neutron and split extremely quickly. The splitting of a single U-235 atom can release roughly 200 MeV (million electron volts).
6 0
3 years ago
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