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
Mama L [17]
3 years ago
12

There are many sources of air pollution in the united states and around the world. Some are natural sources, and other come from

human activities. Which of these examples is a natural source of air pollution?
A.) car exhaust fumes
B.) methane gas from cow manure
C.) dust from fertilizers used on crops
D.) smoke from the burning of fossil fuels
Chemistry
1 answer:
KATRIN_1 [288]3 years ago
4 0
B should be your best guess
You might be interested in
The proposed mechanism for a reaction is: Step 1: A + B X (fast) Step 2: X + C Y (slow) Step 3: Y D (fast) What is the overall r
PolarNik [594]

Answer:

(slow)xy2+z→xy2z (fast) c step1:step2:xy2+z2→xy2z2

Explanation:

Step1: xy2+z2→xy2z2 (slow)

Step2: xy2z2→xy2z+z (fast)

2XY 2 + Z 2 → 2XY 2 Z

Rate= k[xy2][z2]

 

When the two elementary steps are summed up, the result is equivalent to the stoichiometric equation. Hence, this mechanism is acceptable. The order of both elementary steps is 2, which is ‘≤3’; this also makes this mechanism acceptable. Furthermore, the rate equation aligns with the experimentally determined rate equation, and this also makes this mechanism acceptable. Therefore, since all the three rules have been observed, this mechanism is possible.

5 0
2 years ago
At 700 K, the reaction2SO2(g) + O2(g) 2SO3(g)has the equilibrium constant Kc = 4.3 x 106, and the following concentrations are p
dedylja [7]

Explanation:

The given reaction is as follows.

       2SO_{2} + O_{2}(g) \rightarrow 2SO_{3}(g)

Value of equilibrium constant is given as K_{c} = 4.3 \times 10^{6}[/tex].

Concentration of given species is [SO_2] = 0.010 M; [SO_3] = 10.M; [O_2] = 0.010 M.

Formula for experimental value of equilibrium constant (Q) is as follows.

             Q = \frac{[SO_{3}]^{2}}{[SO_{2}]^{2}[O_{2}]}

Putting the given concentration as follows.

              Q = \frac{[SO_{3}]^{2}}{[SO_{2}]^{2}[O_{2}]}

             Q = \frac{(10)^{2}}{(0.010)^{2}(0.010)}

              Q = 10^{8}

It is known that when Q > K_{eq}, then reaction moves in the backward direction.

When Q < K_{eq}, then reaction moves in the forward direction.

When Q = K_{eq}, then reaction is at equilibrium.

As, for the given reaction Q > K_{eq} then it means reaction moves in the backward direction.

Thus, we can conclude that the reaction is moving in the backward direction, that is, right to left to reach the equilibrium.

5 0
3 years ago
I know the paper is blurry but can anyone explain any of the questions from 76-80?
Whitepunk [10]

Answer:try to make a good pic please I have ideas about the topic

3 0
3 years ago
The liter is used to measure _____.<br><br> weight<br> mass<br> volume<br> length
Ket [755]

the answer to your question is

volume

4 0
3 years ago
Read 2 more answers
What is the manganese (IV) oxide function
viva [34]

Answer:

It is used as a catalyst.

6 0
3 years ago
Other questions:
  • When an unknown amine reacts with an unknown acid chloride, an amide with a molecular mass of 163 g/mol (M = 163 m/z) is formed.
    13·1 answer
  • 20 N force moving a box to 30 meters distance. How much work id done? if it takes 10 sec to do this work, how much power is used
    5·1 answer
  • A conversion factor is a fraction that is always equal to what number
    5·1 answer
  • Chlorophenols impart unpleasant taste and odor to drinking water at concentrations as low as 5 mg/m3. They are formed when the c
    8·1 answer
  • Water H20, is made up of different elements, hydrogen and oxygen. Is this type of combination a mixture or pure substance?
    6·1 answer
  • how would you determine which layer is organic in a separatory funnel if the density of the soltuions were unkown
    5·1 answer
  • Which statements describing chemical and nuclear reactions are true?
    5·1 answer
  • How many moles of potassium sulfate are in 72.96 g of this compound
    12·1 answer
  • The Ksp of silver bromide at 25°C (298 K) is 5.0 x 10-13. Write the solubility expression hydrogen oxygen for this compound and
    10·1 answer
  • A gas with a pressure of 2.25 atm occupies 450.0 mL at a temperature of 300 K. What is the volume at 405.0 K?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!