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
Bingel [31]
3 years ago
6

Air quality is a measure of how clean or polluted the air is. Which of the following is not a common way to determine air qualit

y in an area?
A.) Measuring the acidity of the rain
B.) Measuring the amount of particulate matter
C.) Measuring the amount of ground-level ozone
D.) Measuring the amount of precipitation in the area
Chemistry
1 answer:
zhuklara [117]3 years ago
8 0

Here we have to choose the way which is not the common way to judge the quality of the air in a particular area.

The measuring the amount of precipitation in the area is not the common way to determine air quality in an area.

The acidity of the rain causes due to the excess amount of CO₂ and SO₂ in an area. Both the gases cause pollution.

The measuring of the amount of a particular gas element is a renowned way to determine the pollution level of an area.

The ozone is a harmful gas so the measuring of  its amount in ground level can identify the level of pollution in the particular area.

You might be interested in
What are resources?​
Georgia [21]

Answer:

A resource is a source or supply from which a benefit is produced.

Explanation:

hope it helped :)

6 0
3 years ago
A mixture of methanol and methyl acetate contains 15.0 wt% methanol.
Usimov [2.4K]

The mixture flow rate in lbm/h = 117.65 lbm/h

<h3>Further explanation</h3>

Given

15.0 wt% methanol

The flow rate of the methyl acetate :100 lbm/h

Required

the mixture flow rate in lbm/h

Solution

mass of methanol(CH₃OH, Mw= 32 kg/kmol) in mixture :

\tt 15\%\times 200~kg=30~kg\\\\mol=\dfrac{mass}{MW}=\dfrac{30~kg}{32~kg/kmol}=0.9375~kmol

mass of the methyl acetate(C₃H₆O₂,MW=74 kg/kmol,85% wt) in 200 kg :

\tt 85\%\times 200=170~kg\\\\mol=\dfrac{170}{74}=2.297~kmol

Flow rate of the methyl acetate in the mixture is to be 100 lbm/h.

1 kg mixture = 0.85 .methyl acetate

So flow rate for mixture :

\tt \dfrac{1~kg~mixture}{0.85~methyl~acetat}\times 100~lbm/h=117.65~lbm/h

5 0
2 years ago
Why are there more fossils of marine organism than of land organisms o dc
MatroZZZ [7]

Answer:

Three primary reasons. First, there is simply more water-covered places than dry ground places for the animals and plants to have lived. Second, the seas are much more crowded with the kinds of life that leave fossils than the land is. Third, the process that form fossils work very well under water.

Explanation:

4 0
3 years ago
Judging by the electron domain geometry, which type of hybrid orbitals does this molecule have? s sp sp2 sp3
Aleksandr-060686 [28]
The molecule have TETRAHEDRAL HYBRID ORBITAL.
SP3 hybridization involves the mixing of one orbital of S sub level and three orbitals of P sub level of the valence shell. All the orbitals possess equivalent energies and shapes. The SP3 orbital has 25% S character and 75% P character. S and P refers to the s and p sub shells.<span />
4 0
3 years ago
Read 2 more answers
Plete the following problems significant figures: 6 × 0.30<br>​
jeka57 [31]
6= Only the digits 1 and 6 are the actual measured values. Therefore we have only 2 significant figures.

0.3= Zeros used as placeholders are not significant. Zeros that come before non-zero integers are never significant. Example 5: The zeros in 098, 0.3, and 0.000000000389 are not significant because they are all in front of non-zero integers. c. If the zeros come after non-zero integers and are followed by a decimal point, the zeros are significant.
3 0
2 years ago
Other questions:
  • Write the balanced chemical equation for the combustion of ethane, , and answer these questions. (Use the lowest possible coeffi
    8·1 answer
  • In the lab, you took mass and volume measurements and plugged them into the density formula and calculated densities for differe
    5·1 answer
  • 2 PUNTIS
    6·1 answer
  • A chemistry teacher has a 560-cm length of magnesium ribbon. For a class experiment, each student requires an 8.5-cm length of t
    7·1 answer
  • Cyclohexane has a freezing point of 6.50 ∘C and a Kf of 20.0 ∘C/m. What is the freezing point of a solution made by dissolving 0
    13·1 answer
  • An atom has 32 protons, 40 neutrons, and 32 electrons. What is the charge of the atom’s nucleus?
    7·1 answer
  • How was your day????????​
    10·2 answers
  • Atoms are bonded together due to the mixing of atomic orbitals to create mixed or hybrid orbitals. This is an example of a(n)?
    14·1 answer
  • Why do the ions gains an electron after being detected in TOF
    11·1 answer
  • Calcium Oxide at mass 14.0g react with water. Determine the mass at which the calcium hydroxide formed. [ Ca=40, O=16, H=1]​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!