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DIA [1.3K]
3 years ago
11

Please help me with this homework

Chemistry
1 answer:
KengaRu [80]3 years ago
8 0

Answer:

The answer is C density.

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A block has 73 kg is being pushed and accelerated at rate of 10 m/s. what force is being applied to the block?
ki77a [65]

Answer:

730 N

Explanation:

force =mass×acceleration

force= 73kg × 10 m/s

f=730N

8 0
2 years ago
Select all of the following statements that represent the differences between a voltaic cell and an electrolytic cell. Group of
Sunny_sXe [5.5K]

Answer:

  • The electrodes will change in mass for only the electrolytic cell
  • Electrode with the lowest reduction potential is reduced in an electrolytic cell
  • A potential is generated when the voltaic cell runs
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3 years ago
Agents that antagonize the effects of acetylcholine are called __________.
fenix001 [56]
Agents that antagonize the effects of acetylcholine are called anticholinergic. 
<span>Anticholinergic blocks this neurotransmitter acetylcholine within the nervous system, by deactivating nerve impulses as a result of the binding of this neurotransmitter so that it cannot reach its receptor in nerve cells.</span>
4 0
3 years ago
Read 2 more answers
Limestone (CaCO₃) is used to remove acidic pollutants from smokestack flue gases. It is heated to form lime (CaO), which reacts
Alex

To completely eliminate all of the SO2 produced by coal burning, 1250.62 kg of CaCO3 are required.

Equation

CaCO₃ --->CaO + CO2

2 CaO +2 SO2 ----> 2 CaS + 3O2

overall reaction

2 CaCO₃ +2 SO2 ---> 2 CaS + 3O2 + 2CO2

m(S)=8,5 x 10^{4}*0.0033=280.5 kg

n(SO2)= m/Ar(S) = 8,75 x 10^{3}mol

n(CaCO3 needed) = n(SO2) / percent yield

n(CaCO3 needed) = 8.75 x 10^{3}mol / 0.7

​n(CaCO3 needed)= 1.25 x 10 ^4 mol

m(CaCO3 needed) = n x Mr = 1250.62kg

To completely eliminate all of the SO2 produced by coal burning, 1250.62 kg of CaCO3 are required.

<h3>Where Is Limestone Found?</h3>

Numerous locations that produce limestone have been recognized by geologists throughout the world. Between 30o N and 30o S latitude, the most of them are in shallow waters. The Caribbean Sea, Indian Ocean, Persian Gulf, and the Gulf of Mexico are the most well-known shallow water locations.

learn more about limestone here

brainly.com/question/15148363

#SPJ4

5 0
2 years ago
Research the ecology of your region and find one species that is endangered. Find an estimate of the population of the species i
Elza [17]

The endangered species in my region with their estimate population are:

  • Northwestern African Cheetah -  250
  • West African Lion -  400

<h3>What threat faces Northwestern African Cheetah?</h3>

This cheetah is said to be an endangered species because of their loss of their habitat and  also due to fragmentation, trade and little human-activities.

West African Lion is said to be an endangered species because the lion's historic range in West Africa was said to be lowered by a lot of amount or scale as a result of land use changes and human activities such as falling of trees, buildings, etc.

Hence the endangered species in my region with their estimate population are:

  • Northwestern African Cheetah -  250
  • West African Lion -  400

Learn more about endangered species from

brainly.com/question/19655487

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8 0
2 years ago
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