1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Keith_Richards [23]
3 years ago
7

What happens when the threat of exposure to dirty air is reduced in a community?

Chemistry
2 answers:
viktelen [127]3 years ago
6 0

There is enough oxygen available for people's lungs to function normally

Explanation:

When the threat of exposure to dirty air is reduced in a community is reduced there will be enough oxygen available for people's lungs to function normally.

The main problem with dirty air is the absence or lack of oxygen in the atmosphere for people to breathe in calmly and easily.

  • Air pollution is the introduction of harmful substance into the atmosphere.
  • These pollutants makes breathing very difficult because other gases are concentrated in the air.
  • when air is purified through the halt in the processes that feeds the pollutants in, there is enough available oxygen to breathe in.

learn more:

Point source pollution brainly.com/question/11271230

#learnwithBrainly

ss7ja [257]3 years ago
6 0

Answer:

A.

Explanation:

I just took the test.

You might be interested in
21. an atom has 216 protons, how many electrons does it have?
yanalaym [24]

Answer:

21: 47 22: 14

Explanation:

4 0
3 years ago
Which of the following is a balanced chemical equation?
True [87]

Answer:

equation number 3 is balanced.

hope it helps ☺️!

8 0
3 years ago
Calculate the entropy change for the reaction: Fe2O3(s) +3C(s) -> 2Fe(s) + 3CO(g)
Gelneren [198K]

Answer:

ΔS = +541.3Jmol⁻¹K⁻¹

Explanation:

Given parameters:

Standard Entropy of Fe₂O₃ = 90Jmol⁻¹K⁻¹

Standard Entropy of C = 5.7Jmol⁻¹K⁻¹

Standard Entropy of Fe = 27.2Jmol⁻¹K⁻¹

Standard Entropy of CO = 198Jmol⁻¹K⁻¹

To find the entropy change of the reaction, we first write a balanced reaction equation:

                              Fe₂O₃ +  3C →  2Fe + 3CO

To calculate the entropy change of the reaction we simply use the equation below:

      ΔS = ∑S_{products} - ∑S_{reactants}

Therefore:

     ΔS = [(2x27.2) + (3x198)] - [(90) + (3x5.7)] = 648.4 - 107.1

                          ΔS = +541.3Jmol⁻¹K⁻¹

5 0
3 years ago
please help i dont get chemistry as much as I've only just started and I dont know how to separate all these matters ​
dsp73

is this technical chemistry?

6 0
3 years ago
To find the volume of a ring, the water displacement method was used.
ohaa [14]

Answer:

4 cm³?

Explanation:

68-64

4 0
3 years ago
Other questions:
  • What is the molar mass of a substance
    5·2 answers
  • What causes the salinity of ocean water to decrease
    12·2 answers
  • Which of the following is a molecule but
    6·1 answer
  • Help please, 44 to 45, calculate the answers to the following problems. Use the following equation as the basis of your calculat
    10·2 answers
  • In order to produce CO2, a student put a sample of calcium carbonate in a flask and added hydrochloric acid using the following
    13·1 answer
  • Please answer my question, and please no random things, thank you!! It is not F, That is all I know.
    15·2 answers
  • Empirical formula of c8h14
    15·1 answer
  • Which era did we live on in 2008
    9·2 answers
  • How to find molecular weight​
    11·1 answer
  • What is the mass of 2.14 mol CaCl2?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!