All of the following are sources of air pollution EXCEPT
-mobile sources
- Factories
-scrubbers
-Landfills

Answers

Answer 1

Answer:

Mobile sources

..........................


Related Questions

What are the elements names for C9H8O4

Answers

C9 is Carbon with 9 atoms
H8 is Hydrogen with 8 atoms
O4 is oxygen with 4 atoms

Which color object would be the hottest? A violet object, a red object or a green object? Why?

Answers

Answer:

A Violet object

Explanation:

An Violet object attracts the heat after white objects, followed by orange, yellow, green, blue, indigo and violet, which attracts the most heat of any visible color other than black.

How can we increase the surface area of reactants?
add a catalyst
O place them in a flame
dissolve them in water
o add more particles to the solution

Answers

Answer:

O place them in a flame dissolve them in water o add more particles to the solution.

Set up a cell that has a Mg electrode in a 1.0 M aqueous Mg2+ solution on the left side and a Cu electrode in a 1.0 M aqueous Cu2+ solution on the right side. Add the salt bridge. What is the balanced net ionic equation for this reaction? Include physical states.

Answers

The cell notation is; Cu^2+(aq)/Cu(s)//Mg(s)/Mg^2+(aq). The standard cell notation helps us to write the cell equation easily.

What is electrochemical cell?

The electrochemical cell involves the transformation of chemical energy to electrical energy in an electrochemical cell. The two electrodes involved are the cathode and the anode.

In this case, the Mg is the anode and the Cu is the cathode hence the cell notation is; Cu^2+(aq)/Cu(s)//Mg(s)/Mg^2+(aq).

Learn more about electrochemical cell: https://brainly.com/question/12034258

Hellpp I don’t understand this

Answers

Answer:

Can you repost this but flip it? It’s upside down rn

Explanation:

Answer this question lol

Answers

A MARK ME AS BRAINLIEST LS

what is the mass percentage of Li2CO3

Answers

Answer: its supposed to be  18.78%.

Explanation:

How much energy is needed to completely boil a 5.05g sample of water?

Answers

I don’t know good luck tho i lowkey just need points to ask a question sorry

An alternating current can be described as one in which:

A. Electrons flow in both directions in the circuit.
B. Electrons flow in only one direction in the circuit
C. Electrons move only from the negative terminal of the battery.
D. Electrons move only from the positive terminal of the battery.

Answers

A

Explanation:

electrons flow in both directions

Answer: A I know it but I forgot how to explain it.

(07.01 MC)
A potential energy diagram is shown.
200
Potential Energy (kJ)
150
Reactants
100
Products
50
0
Reaction Pathway
What is the activation energy of this reaction? (5 points)
O 50 kJ
100 kJ
O 150 kJ
O 200 kJ

Answers

By subtracting the energy at the highest point of the diagram from the energy of the reactants we obtain the activation energy.

What is a potential energy diagram?

A potential energy diagram is a diagram that shows the energy of the reactants as well as that of the products. Even though the diagram is not shown here but we know that the actvation energy is shown by the energy difference between the highest point on the reaction profile and the energy of the reactants.

Hence, by subtracting the energy at the highest point of the diagram from the energy of the reactants we obtain the activation energy.

Learn more about activation energy: https://brainly.com/question/11334504?  

Answer:

The answer would be 100 kJ

Explanation:

I took the quiz

Suppose that a car's starter motor draws 221 A of current for 6.20 s to start the car. What mass of Pb is oxidized in the lead–acid battery to supply this much electricity?

1.47 grams
Actually, I figured it out., here is the answer in case anyone is wondering:
It has two electrons in the process and Q is 1370.2 (Q= I*T= 221*6.2=1370.2) this gets to 1370.2/192736 (the number on the denominator is due to that fact that there are two electrons involved) That equals 0.007 Mols, and then using the grams per mol from the periodic table for lead, we get that value is equal to 1.47 grams.

Answers

The lead acid battery produces energy by oxidation of lead. The amount of lead oxidized in this case is 1.47 g.

What is lead acid battery?

The lead acid battery is the common accumulator that we have in use. It is made up of a cell that contains lead electrodes in an acid.

The oxidation of lead occurs according to thr equation;

Pb(s) ----> Pb^2+(aq) + 2e

If 207 g of Pb is oxidized by 2(96500)C

x g of lead is oxidized by (221 * 6.20) C

x = 207 g * (221 * 6.20) C/2(96500)C

x = 1.47 g

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Which would lower the reaction rate?

A. Increasing the concentration of reactants.

B. Increasing the temperature of the system.

C. Raising the value of k.

D. Decreasing the temperature of the system.

Answers

Answer:

D. Decreasing the temperature of the system

Explanation:

What is internal pressure?

Answers

Internal pressure is a measure of how the internal energy of a system changes when it expands or contracts at constant temperature.

Thermal energy transfer lab report.
I need answers for questions 1-11.
If you cannot answer every question, that is ok. I just need the help. Here are the questions.
1. What is the purpose of the lab, the importance of the topic, and the question you are trying to answer?

2. What is your hypothesis (or hypotheses) for this experiment?

3. What methods are you using to test this (or each) hypothesis?

4. Locate the data and observations collected in your lab guide. What are the key results? How would you best summarize the data to relate your findings?

5. Do you have quantitative data (numerical results or calculations)? Do you have qualitative data (written observations and descriptions)? How can you organize this date for your report?

6. What do the key results indicate?


7. If you constructed graphs, what trends do they indicate in your data?


8. Were there any problems with the experiment or the methods? Did you have any surprising results?

9. What do the results tell you about your hypothesis(es)?

10. How do the data support your claim above?

11. If you could repeat the experiment and make it better, what would you do differently and why?

Answers

Thermal energy flows from hot to colder bodies and is determined by the process of calorimetry.

What is thermal energy?

Thermal energy is the energy transfer process which occurs as a result temperature difference between two bodies.

Thermal energy flows from hot to colder bodies.

The quantity of Heat transfer is determined using a calorimeter.

The calorimeter works on the principle of conservation of energy. The principle of the calorimeter is stated as follows:

Heat lost = Heat gained

The quantity of Heat, q = mass × specific heat capacity × temperature difference

Therefore, it can be concluded that thermal energy flows from hot to colder bodies.

Learn more about thermal energy at: https://brainly.com/question/7541718

Answer:

I did this earlier, here's what I put.

What is the mass in grams of 5.2 x 1028 atoms of manganese (Mn)?

Answers

The mass, in grams, of 5.2 x 10^28 atoms of manganese would be 0.0006833 grams

Mass calculation

According to Avogadro, 1 mole of any substance contains 6.022 x [tex]10^{23}[/tex] atoms.

Thus, how many moles would be in 5.2 x [tex]10^{28}[/tex]atoms of Mn:

         = 6.022 x [tex]10^{23}[/tex] /1 x 5.2 x [tex]10^{28}[/tex]

                       = 0.00001158 moles

Mass of 0.00001158 moles Mn = 0.00001158 x 54.9

                         = 0.0006833 grams

More on Avogadro's constant can be found here: https://brainly.com/question/21177668

From the reaction: B2H6 + O2 HBO2 + H2O a. What mass of O2 will be needed to burn 36.1 g of B2H6? b. How many moles of water are produced from 19.2 g of B2H6?

Answers

A. The mass of O₂ needed to burn 36.1 g of B₂H₆ is 123.77 g

B. The number of mole of water, H₂O produced from 19.2 g of B₂H₆ is 1.372 mole

Balanced equation

B₂H₆ + 3O₂ —> 2HBO₂ + 2H₂O

Molar mass of B₂H₆ = (2×11) + (1×6) = 28 g/mol

Mass of B₂H₆ from the balanced equation = 1 × 28 = 28 g

Molar mass of O₂ = 2 × 16 = 32 g/mol

Mass of O₂ from the balanced equation = 3 × 32 = 96 g

SUMMARY

From the balanced equation above,

28 g of B₂H₆ required 96 g of O₂

A. How to determine the mass of O₂ needed

From the balanced equation above,

28 g of B₂H₆ required 96 g of O₂

Therefore

36.1 g of B₂H₆ will require = (36.1 × 96) / 28 = 123.77 g of O₂

Thus, 123.77 g of O₂ is required for the reaction

B. How to determine the mole of water produced

We'll begin by calculating the number of mole of in 19.2 g of B₂H₆. This can be obtained as follow:

Mass of B₂H₆ = 19.2 g Molar mass of B₂H₆ = 28 g/mol Mole of B₂H₆ =?

Mole = mass / molar mass

Mole of B₂H₆ = 19.2 / 28

Mole of B₂H₆ = 0.686 mole

Finally, we shall determine the number of mole of water produced. This is illustrated below:

Balanced equation

B₂H₆ + 3O₂ —> 2HBO₂ + 2H₂O

From the balanced equation above

1 mole of B₂H₆ reacted to produce 2 moles of H₂O

Therefore, H₂O

0.686 mole of B₂H₆ will react to produce = 0.686 × 2 = 1.372 mole of H₂O

Thus, 1.372 mole of H₂O was obtained from the reaction

Learn more about stoichiometry:

https://brainly.com/question/14735801

how many shared electrons are in the lewis structure of h2o2

Answers

Answer:

4 shared electrons

Explanation:

There are 4 shared electrons in the lewis structure of h2o2.

Looking at the figure, the overall (SiO4) molecule, which forms the common mineral quartz, has a tetrahedral shape. It is probably a:
non-polar molecule
polar molecule

Answers

non-polar molecule because the chemical formula is in a tetrahedral form(O4) and the (Si) is in the centre. I hope this will help you

Write the balanced NET ionic equation for the reaction when ZnI₂ and Pb(ClO₄)₂ are mixed in an aqueous solution.

Answers

Answer:

The total ionic equation is:

3 Na+ + PO4-3 + 3H+ + 3Cl- --> H3PO4 + 3Na+ + 3 Cl-

And the net ionic equation is:

3H+ + PO4-3 --> H3PO4

what is Newton's second law of motion ​

Answers

Answer:

Newton's second law of motion is F = ma, or force is equal to mass times acceleration.

Explanation:

Answer:

F= m x a

force = mass x acceleration

Explanation:

The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased.

In Fig C, which pair of electrons is the lone pair?
H:P:H
Fig C
H
O Top
O Left
Bottom
O Right

Answers

Answer:

bottom right top left fig

An ideal gas exerts a pressure of 3atm in a 3L container. The container is at a temperature of 298K.

What will be the final pressure if the volume of the container changes to 2L?

Possible Answers:
4.5atm

2atm

4atm

3.5atm​

Answers

Given:

Initial pressure P1 = 3 atm

Initial volume = 3L

Temperature (constant)= 298 K

final volume V2 = 2L

To find:

Final pressure P2 = ?

Solution:

According to Boyle's Law,

P1V1 = P2V2

3×3 = 2 × P2

P2 = 9/2

P2 = 4.5 atm

[tex]{Answer = 4.5 atm}[/tex]

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What do ferns and gymnosperms have in common?They are all vascular plants.
Reproduction depends on birds, bees, and other animals.
They all produce seeds.
They depend on water for fertilization.

Answers

Answer:

They are all vascular plants.

Explanation:

Vascular plants, also known as tracheophytes, are highly advanced plant creatures with leaves, stems, and roots, as well as a vascular system made up of conducting vessels. Ferns are herbaceous, pteridophytic vascular plants that do not produce flowers or seeds. Gymnosperms are vascular plants that produce seeds but do not produce blooms. Because the seeds aren't covered or protected by an ovary, they can be seen on the plant's leaves or other components. Angiosperms are flowering plants containing seeds that develop inside the ovary, which develops and produces fruit.

Answer:

They all produce seeds

Explanation:

What is the pOH of a
2.6 x 10-6 M H+ solution?

Answers

Explanation:

pOH=-log(2.6×10^(-6)

we get around 5.59

(using log)

How many kilojoules are required to melt 15 g of ice at 0 degrees C, and raise the temperature of the liquid that forms to 85 degrees C?

Answers

Answer:

10026 joules

Explanation:

its right.

How many R.P.'s is equivalent to 0.780 g of Na₂CO₂?

Answers

Answer:

pbo2+cl-=clo-+pb(oh)2

Explanation:

balance by ion electron

What happens when an electron jumps energy from energy level 3 energy level 6 in an atom

Answers

Explanation:

high energy to Low energy

=the electron gains energy (K.E)

Which kind of wave is formed when a transverse wave and a longitudinal wave combine?
A a surface wave
B an electromagnetic wave
C a sound wave
D a radio wave

Answers

The kind of wave that is formed when a transverse wave and a longitudinal wave combine is surface wave.

What is surface wave?

A surface wave is a mechanical type of wave that propagates along the boundary between two different media.

How surface waves form

When a mechanical wave travels at the interface between two media, a transverse wave and a longitudinal wave can combine to form a surface wave.

An example can be seen in ocean waves.

Thus, the kind of wave that is formed when a transverse wave and a longitudinal wave combine is surface wave.

Learn more about surface waves here: https://brainly.com/question/11750134

Which solution would have the highest concentration of [H+] ions?
O a solution with a pH of 8
O a solution with a pH of 12
O a solution with a pH of 10
a solution with a pH of 6

Answers

Ph 8 or ph 6 that’s probably one of those

what is an important role that fish have in our universe?

Answers

Answer:

Answer:Fish play an important role in nutrient cycles because they store a large proportion of ecosystem nutrients in their tissues, transport nutrients farther than other aquatic animals and excrete nutrients in dissolved forms that are readily available to primary producers.

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