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katen-ka-za [31]
3 years ago
5

What is the definition of an atmosphere? a portion of the electromagnetic spectrum that makes the sky look blue the blanket of g

ases that surrounds Earth and some other planets an area above Earth that scatters sunlight into all colors of the rainbow​

Chemistry
1 answer:
goldenfox [79]3 years ago
7 0

Answer:

the blanket of gases that surrounds Earth and some other planets

Explanation:

The best definition of the atmosphere is that it is a portion of the earth that is a made up of a blanket of gases.

  • The atmosphere is not peculiar to the earth alone, some other planets also have atmospheric cover.
  • The earth's atmosphere is divided into many different layers.
  • The weather we see and experience on the earth surface is conditioned within the troposphere.
  • This troposphere is the closest layer to the surface.
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(1.7 x 10-5 m) x (3.72 x 10-4 m) *
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Answer:

The answer will be 1992/5 or 398.4

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Where are calcium ions (Ca2+) stored in the body?
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Calcium is stored in bones in the body

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ANSWER ASAP PLEASE
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Density is equal to mass divided by volume so the densest object will be the object that has the largest mass in the smallest area. In this case object A is the densest with a density of 10g/cm^3. I hope this helps. Let me know if anything is unclear.
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3 years ago
In the following chemical reaction, which compound is a precipitate? NaCl(aq) + AgNO3(aq)NaNO3(aq) + AgCI (s)
hjlf
The answer is:  [D]:  " AgCl " .
_________________________________________________________ 

Explanation:

_________________________________________________________

Given the chemical reaction:
_________________________________________________________
  
       NaCl (aq) + AgNO₃ (aq) <span>→ </span> NaNO₃ (aq) + AgCl (s)   ;
_________________________________________________________

The "reactants" , which are on the "left-hand side" of the chemical equation, are:

"NaCl" (in aqueous solution);  and "AgNO₃" (in aqueous solution).

The "products", which are on the "right-hand side" of the chemical equation, are: 

"NaNO₃" (in aqueous solution); and:  "AgCl" (as a "solid").

The "AgCl" (as a "product"—which is a "solid"—would be the "precipitate" ; 
__________________________________________________________

   →  which is:  Answer choice:  [D]:  " AgCl " . 
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4 0
3 years ago
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A 5.0L container is filled with H2 gas at STP. Predict what happens with the conditions of the gas change as described below (in
Amiraneli [1.4K]

Answer:

(a)  As temperature increases, the average kinetic energy increases

(b) If H₂ is replaced with N₂, there will be increase in average velocity

(c) An increase in temperature will cause increase in average velocity

(d) The increase in entropy as a result of an increase in temperature and average velocity will cause the kinetic energy to increase.

Explanation:

Given;

5.0L container filled with H₂ at stp

Part (a) What happens to average kinetic energy as temperature increases

As temperature increases, the average kinetic energy increases

Part(b) What happens to the average velocity if H₂ is replaced with N₂

Entropy is directly proportional to average velocity of gases and entropy increases with an increase in molecular mass.The molecular mass of nitrogen gas N₂ is greater than molecular mass of hydrogen gas H₂.

Thus, if H₂ is replaced with N₂, there will be increase in average velocity.

Part(c) What happens to the average velocity as temperature increases

Kinetic energy increases with an increase in temperature and average velocity.

An increase in temperature will cause increase in average velocity

Part (d) What happens to average kinetic energy if H₂ is replaced with N₂

The increase in entropy as a result of an increase in average velocity will cause the kinetic energy to increase.

3 0
3 years ago
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