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Rama09 [41]
4 years ago
10

1. ___ FeS +_ HCI- FeCl2 + _H2S - Balance the following chemical equations

Biology
1 answer:
statuscvo [17]4 years ago
8 0

Answer:

FeS + 2HCl = FeCl2 + H2S

Explanation:

On the prodcuts side (right) Chlorine and Hydrogen already had 2 coefficents to start with. So you needed to change your reactant Chlorine and Hydrogren to two also.

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One way to determine the density of animals in an area is to use the mark-recapture technique. A number of individuals from a po
NNADVOKAT [17]

Answer:

N = 187.55

Explanation:

Here you just need to replace the terms and clear the equation.

You already know that,

  • First capture: 25 prairie dogs.
  • First marked animals: 25 (the whole first capture)

You let these animals leave and then you made another capture.

  • Second capture: 135 prairie dogs
  • Already Marked animals: 18 (these 18 dogs were caught in the first capture and marked before releasing them)  

To know the size of the prairie dogs population you just need to use the following equation and clear N, which is the value that you are looking for.  

Number of individual marked in first catch/Total population size, N = Number of individual marked in 2nd catch / Total number of 2nd catch

  • Number of individual marked in first catch = 25 dogs
  • Total population size, N = this is what we want to know
  • Number of individual marked in 2nd catch = 18 dogs
  • Total number of 2nd catch = 135 dogs

So now, we need to replace terms

25 / N = 18 / 135

25 / N = 0.1333

N = 25 / 0.1333

N = 187.55

4 0
3 years ago
The virus known as ________ primarily infects lymphocytes.
Zanzabum

The virus known as Epstein-Barr virus primarily infects lymphocytes

<h3>What are Epstein-Barr viruses</h3>

Epstein- Barr viruses are viruses that causes mononucleosis. They are from the family Human gammaherpesvirus 4.

These viruses preferentially infects the human B- lymphocytes and may also infect the epithelial cells of the body.

Therefore, the virus known as Epstein-Barr virus primarily infects lymphocytes.

Learn more about Epstein-Barr viruses here:

brainly.com/question/22940218

#SPJ12

8 0
2 years ago
Which provides the best example of perseverance ?
Masteriza [31]
School is an example like you have a load of work and its hard and u keep going cuz u know it will get you someone good adn another is running a marothon even though its hard you just keep going. hope this helps and please rate below :)
4 0
3 years ago
List the events of inspiration beginning with stimulation of the phrenic nerves
Andru [333]
The events of inspiration begins with the;
Impulses are conducted on the phrenic nerve to muscle fibers in the diaphragm contracting them.
As the dome shaped diaphragm moves downward the thoracic cavity expands.
At the same time the external intercostal muscles may contract raising the ribs and expanding the thoracic cavity further.
The intra-alveolar pressure decreases 
Atmospheric pressure greater than intra-alveolar pressure forces the air into the respiratory tract through the air passages.
The lungs fill with air.
3 0
4 years ago
Which example would result in new cells that are most different from the parent cells
guajiro [1.7K]
<span>sperm and egg cells uniting to produce fertilized eggs</span>
3 0
3 years ago
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