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4 years ago

Which atmospheric layer is where Earth's northern and southern lights occur?

Chemistry

2 answers:

gtnhenbr [62]4 years ago

8 0

The Northern and Southern lights (also known as Auroras) take place in the Thermosphere.

Hope this helps(:

Anuta_ua [19.1K]4 years ago

4 0

Answer:

Thermosphere is the atmospheric layer where Earth's northern and southern lights occur.

Explanation:

These are the beautiful lights of different colors appear in the evening sky (generally at higher altitudes).

These occur in thermosphere.

The solar wind (a hot flux of particles) are moved away from sun by the plasma. These solar wind particles may get strike on the thermosphere of earth and thus get in contact with magnetic field of earth which appears like bright colored light.

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Food chains always begin with what type of organism? Why?

Inessa05 [86]

The food chain always begins with a sun without it there would be no food chain... hope this helped!

6 0

3 years ago

What sequence of enzymes allows for the synthesis of glycogen from glucose-6-phosphate?

Nutka1998 [239]

Answer:

The answer is (e) : phosphoglucomutase, UDP-glucose pyrophosphorylase, glycogen synthase then amylo-(1,4-1,6)-transglycosylase.

Explanation:

Phosphoglucomutase: Convert glucose-6-phosphate to glucose-1-phosphate.

UDP-glucose pyrophosphorylase: Form UDP-glucose from glucose-1-phosphate.

Glycogen synthase: Add the new glucose from UDP-glucose to the growing glycogen chain.

Amylo-(1,4-1,6)-transglycosylase: This is a branching enzyme, it initiates formation of branches evolving from the main chain.

4 0

3 years ago

Select the equations below that represent physical changes.

Ierofanga [76]

Physical changes- any change in the physical properties of the substance is a physical change. Generally physical properties include color, state, size , shape, odour, appearance . In any phyical change, no new substance is formed.

Chemical changes- any change in the chemical properties of the substance is a chemical change. Chemical properties changes only when something new is formed during a reaction.

∴ Part A- 2 H2O(l) → 2 H2(g) + O2(g)

In this, H2 and O2 is produced during the reaction which is different from H20. Thus, it is a chemical change.

Part B- H2O(l) → H2O(s)

In this, only the state of water changes from liquid to solid and no new product is formed. Thus, it is a physical change.

Part C-CO2(s) → CO2(g)

In this also, only the state of CO2 changes from solid to gas and no new product is formed. Thus, it is a physical change.

Part D-H2(g) → 2 H(g)

In this reaction, H2 molecule is dissociated into 2 hydrogen atom leading to formation of new products. Thus, it is a chemical change.

Finally, equations that represent physical changes are - B and C

B. H2O(l) → H2O(s)

C. CO2(s) → CO2(g)

6 0

4 years ago

3,621.471 in scientific notation?

tiny-mole [99]

That would be 3.621471•10^3

3 0

3 years ago

Write the net ionic equation:. . A solution of diamminesilver(I) chloride is treated with dilute nitric acid

zimovet [89]

Ag(NH3)2Cl + 3HNO3 = AgNO3 +2NH4NO3 + HCl 
or
Ag(NH3)2Cl + HNO3 = Ag(NH3)2NO3 + HCl this the complete balanced equation
now remove spectator ions to get net ionic equation
so

 2H+ + 2NO3- + [Ag(NH3)2]+ Cl- -> AgCl + 2NH4+ + 2NO3- 2NO3- 2H+ [Ag(NH3)2]+ + Cl- -> AgCl + 2NH4+
hope it helps

5 0

3 years ago

Read 2 more answers