The two general types of air pollution are _____ and _____.


invisible
particles
gases
liquid

Answers

Answer 1
Liquid and gases is the two general types of air pollution
Answer 2

Answer:

i think this is it

Explanation:

particles and gases


Related Questions

Consider the following chemical reaction:
HF + NaOH - NaF + H20
Energy must be invested in order for the reaction to proceed.
What bonds must be broken in order for the reaction to proceed.
Select ALL that apply.
A. An ionic bond between sodium and hydroxide.
B. An ionic bond between sodium and fluorine.
C. A covalent bond between sodiume and fluorine.
D. An ionic bond between hydrogen and fluorine.
DE. A covalent bond between hydrogen and fluorine.
DE A covalent bond between hydrogen and oxygen

Answers

Answer: The correct options are A and E

Explanation:

A chemical reaction is defined as the reaction in which two or more chemical substances react to form two or more different chemical substances.

A new substance (product) is formed in a chemical reaction when the bonds between the reactants are broken so that the new bonds between the products can be formed.

For a given chemical reaction:

[tex]HF+NaOH\rightarrow NaF+H_2O[/tex]

Here,

HF is a covalent compound as sharing of electrons take place between hydrogen and fluorine atom

NaOH is an ionic compound as a complete transfer of electrons occurs from sodium to hydroxide.

Thus, to form the products, an ionic bond between sodium and hydroxide must be broken coupled with a covalent bond between hydrogen and fluorine.

Hence, the correct options are A and E

Who is my favourite wrestler?​

Answers

i don’t know:)))))))))))

Answer:

ma herdina thesto wrestling

what is periodic law​

Answers

The Periodic Law states that the physical and chemical properties of the elements recur in a systematic and predictable way. When the elements are arranged in order of increasing atomic number. Many of the properties recur at intervals.

. Calculate the pH and the pOH of each of the following solutions at 25 °C for which the substances ionize completely:
(a) 0.200 M HCl

(b) 0.0143 M NaOH

(c) 3.0 M HNO3

(d) 0.0031 M Ca(OH)2

Answers

a. HCl:
pH= -log [H3O+]
PH=-log (0.200)
= 0.699

poH= 14-0.699
= 13.301

b. NaOH:
PoH= -log [OH-]
= -log (0.0143)
= 1.845
pH= 14-poH
= 14- 1.845
= 12.16

c. HNO3:
PH= -log[H3O+]
=-log(3.0)
= -0.4771
poH= 14-pH
= 14-9-0.4771
= 14.4771

pH= -0.4771, poH= 14.4771

d. [Ca(OH)2] = 0.0031M
[OH-]= 2X0.0031
[OH-] = 0.0062M

PoH= - log[OH-]
=-log(0.0062)
=-log(6.2x10-3)
=-(-2.21)
= 2.21
PH=14-poH
=14-2.21
=11.79
POH=2.21, PH= 11.79

Based on the molarity of the solutions;

For 0.200 M HCl; pH = 0.699, pOH = 13.301For 0.0143 M NaOH; pOH = 1.845, pH = 12.16For 3.0 M HNO3; pH = -0.4771, poH = 14.4771For 0.0031 M Ca(OH)2; pOH = 2.21, pH = 11.79

What pHand pOH?

pH is the negative logarithm to base ten of the hydrogen ions concentration of a solution.

pH = -log[H+]

pOH is the negative logarithm to base ten of the hydroxide ions concentration.

pOH = -log[OH-]

Also;

pH + pOH = 14

For HCl:

pH = -log [H3O+]

pH =-log (0.200)

pH = 0.699

Then;

poH= 14-0.699

pOH = 13.301

For NaOH:

pOH= -log [OH-]

= -log (0.0143)

pOH = 1.845

Then;

pH= 14-poH

= 14- 1.845

pH = 12.16

For HNO3:

pH= -log[H3O+]

=-log(3.0)

= -0.4771

Then;

pOH = 14-9-0.4771

pOH = 14.4771

For [Ca(OH)2]

molarity = 0.0031M

2 moles of OH- are produced

[OH-]= 2 × 0.0031

[OH-] = 0.0062M

pOH = - log[OH-]

=-log(0.0062)

=-log(6.2x10-3)

=-(-2.21)

pOH = 2.21

Then;

pH =14-2.21

pH =11.79

Learn more about pH and pOH at: https://brainly.com/question/13557815

In the diagram shown, what is occurring at the section marked 4 ?
Temperature
:: ا
4
2
Heat Energy
O Melting
Freezing
O Condensation
O Vaporization

Answers

Answer:

Vaporization

Since the question does not specify what molecule is being acted upon by the increment in temperature, I'll assume it's water.

When first taken out of the fridge, water is in the form of ice, and it has not been affected by a change in temperature yet, so it's at the origin.

(origin = ice)

As you raise the temperature, however, the ice starts to melt, and melting occur during phase 2. You have to keep the temperature constant for the process to properly occur.

(phase 2 = melting)

After it finishes melting, the ice is now in it's liquid state, which is water. The temperature continues to rise in order to proceed to the next phase.

(2nd slope = water)

Lastly, Water is being vaporized during phase 4. Notice, the temperature is kept constant in order to allow the process to properly occur.

(phase 4 = vaporization)

Which of the following is an advantage of using an energy-efficient household
appliance instead of a traditional household appliance?
A. It works only during the daytime.
B. It uses no electricity
c. It conserves electricity.
D. It does not work as effectively

Answers

the answer is c.
conserves electricity

The electrolysis of water has the equation 2H2O (l) → 2H2 (g) + O2 (g). What type of reaction is this?

A)

Single displacement

B)

Double displacement

C)

Decomposition

D)

Synthesis

Answers

Answer:b

Explanation:

what is indepent and dependent variables

Answers

Answer:

The independent variable is the cause. Its value is independent of other variables in your study.

The dependent variable is the effect. Its value depends on changes in the independent variable.

Ex: The ice cube melts on the stove.

Dependent variable: Ice Cube

Independent variable: heat of stove

Answer:

In an experiment, the IV(independent variable) is a variable that is changed to see how it affects something else, and the DV (dependent variable)is a variable that is being measured/observed.

hope this help!

please mark as brainiest <3

An element X has the proton number 18.
The next element in the periodic table is an element Y.
Which statement is correct?

Answers

Answer:

This question is incomplete

Explanation:

This question is incomplete. However, the element X with the atomic number of 18 is Argon (Ar) while the next element (element Y) in the periodic table, with atomic number 19, is potassium (K).

Element X is found in the group zero (also called group 18 and elements found therewith are referred to as noble gases) of the periodic table while element Y is found in group 1 (elements found here are referred to as alkali metals).

Element X has a completely filled outermost shell while element Y has one electron in its outermost shell.

Element X is a metal while element Y is a nonmetal.

URGENT!!!

A solution has a [H3O+] of 1 × 10−5 M. What is the [OH−] of the solution? (5 points)
9 M
14 M
1 × 10−9 M
1 × 10−14 M

Answers

Answer:

[tex]{ \bf{from \: ionic \: product \: of \: water : }} \\ { \boxed{ \tt{k _{w} = [H _{3} O {}^{ + } ][OH {}^{ - } ]}}} \\ \\ { \tt{1 \times {10}^{ - 14} = (1 \times {10}^{ - 5} ) [OH {}^{ - } ]}} \\ \\ { \tt{[OH {}^{ - } ] = 1 \times {10}^{ - 9} }} \: M[/tex]

A solution has an [H3O+] of 1 × 10−5 M the [OH−] of the solution will be 1 × 10−9 M and option C is correct.

What is [OH−] of the solution?

The water is made up of H2O only and when the pH of it is 7 then the concentration of all the ions would be the same while dissociation the water will get dissociate into H+ ions and OH- ions.

The concentration of OH- ions will be

OH- = Kw {H3O+}

{H3O+} = 1 × 10−5 M.

Kw = 14

substituting the value in the equation,

OH = 14 { 1 × 10−5 M.}

OH = 1 × 10−9 M

Therefore, the solution has an [H3O+] of 1 × 10−5 M the [OH−] of the solution will be 1 × 10−9 M and option C is correct.

Learn more about  [OH−] of the solution, here:

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what is the chemical formula for Mg2+ and I1- ( magnesium and iodine)

Answers

Explanation:
M
g
2
+
+
2
I


M
g
I
2

Answer:MgI2

Explanation:

the structure of butanoic acid

Answers

answer on here fjchcjfjdnc.com

12. Which nonmetal is the most reactive?
A bromine
B
iodine
C) fluorine
D) chlorine

Answers

Answer:

C Fluorine

Explanation:

C fluorine is the answer

Identify the atom oxidized, the atom reduced, the oxidizing agent, and the reducing agent. 2Fe + 3V2O3 -------> Fe2O3 + 6VO​

Answers

Explanation:

Fe- reducing agent (since it is oxidized to fe203)

v203- oxidizing agent(since it is reduced)

In the given reaction, Fe is the reducing agent and V is the oxidizing agent.

What is a reducing agent?

An atom or compound that loses its electrons to other substances in a reduction-oxidation reaction and gets oxidized to a higher valency state is called a reducing agent.

A reducing agent can be defined as one of the reactants of a redox reaction that reduces the other reactant by giving its electrons to the reactant. If the reducing agent can not give away its electrons to others in a reaction, then the reduction reaction cannot occur.

Given, the following chemical reaction:

2Fe + 3V₂O₃ → Fe₂O₃ + 6VO​

The V₂O₃ oxidation state of V:

2 x + 3(-2) = 0

2x = 6

x = + 3

The Fe₂O₃ oxidation state of Fe:

2 y + 3 (-2) = 0

2y = 6

y = + 3

The V acts as an oxidizing agent because it accepts one electron to change the oxidation state from +3 to +2.

Fe acts as a reducing agent because it gives out its electrons to change the oxidation state from 0 to +3.

Learn more about reducing agent, here:

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Concentrations-
How many moles of HCI are present in 562.0 ml of a 6.17 M HCI solution?

If possible, show work.

Answers

Moles of HCl is 3.47mol

Work shown on photo

Please help I’ll give brainliest

Answers

REACTION TYPE:

Single displacement/Oxidation-reduction

(Hope this helped UwU)

Answer:

Synthesis reaction is the answer


How did reducing the number of
decomposers affect the amount of carbon
dioxide in the ecosystem?

Answers

Answer:

As organisms release energy during cellular respiration, carbon dioxide is produced from the carbon in energy storage molecules. ... Carbon dioxide in the biodome decreased because decomposers decreased which means there was a decrease in cellular respiration overall.

btw :

stay safe! :3

what is photosynthesis ?​

Answers

Answer:

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Explanation:

basically when plants make food for themselves

Answer:

photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

Explanation:

hii are you also from India ¯\_(ツ)_/¯

What is the molecular geometry of Br2

Answers

the molecular geometry of Dibromine is Linear and the compound has a symmetrical shape.

Which of the following is an example of nuclear fission?
A. A gamma emitter is used to trace movement of chemicals in the
environment.
B. A radioactive drug that emits electrons is used to treat cancer in a
patient.
O c. Two different isotopes of hydrogen form an isotope of helium on
the sun.
O D. A large radioactive atom breaks into smaller atoms, producing
nuclear energy.

Answers

The statement which is an example of nuclear fission is that a large radioactive atom breaks into smaller atoms, producing nuclear energy.

What is nuclear fission?

Nuclear fission is a kind of radioactive decay reaction in which an unstable nuclei of an atom will split into smaller stable nuclei by the emission of lots of energy.

Gamma emitter is used inside the human body to trace the information that assists in making a diagnosis by the help of medication.To treat cancer patient high energetic rays like x-rays, gamma-rays are used.Formation of isotope of helium from two different isotopes of hydrogen is an example of nuclear fussion reaction.

Hence in nuclear fission a large radioactive atom breaks into smaller atoms, producing nuclear energy.

To know more about nuclear fission, visit the below link:
https://brainly.com/question/3992688

When two ice skaters initially at rest push off one another, their final
momenta are..."

Answers

Answer:B

Explanation:

Biggest oil fields in the world?

Answers

Answer:

Ghawar field   location-Saudi Arabia

Burgan Field   location-Kuwait

Ahvaz field      location-Iran

Upper Zakum Oil Field   Location-Abu Dhabi UAE

Explanation:

I learned this yesterday :D

Determine the number of protons, electrons, and neutrons present in an atom of patassium. Explain how you determined your answer using complete sentences.

Please make sure your right.

Thank you!!!

Answers

Protons-19 because protons are equal to the atomic number which is 19 , electrons-19 electrons are equal to number of protons, neutrons-20 because the mass number of potassium is 39 so subtract 39 from 19 (atomic number) which gives us 20

What dose the wave carry

Answers

Answer:

Waves carry energy from one place to another.

Because waves carry energy,some waves are used for communication,eg radio and television waves and mobile telephone signals.

Explanation:

i hope it helps

that's my answer

correct me if im wrong

#carryonlearning

The reaction below is performed with 10.0 g of Al and 19.0 g of O2. How many grams of aluminum oxide will be made? 4 Al (s) + 3 O2 (g) → 2 Al2O3 (s)

Answers

Answer:

18.89 g of Al₂O₃.

Explanation:

The balanced equation for the reaction is given below:

4Al + 3O₂ —> 2Al₂O₃

Next, we shall determine the masses of Al and O₂ that reacted and the mass of Al₂O₃ produced from the balanced equation. This can be obtained as follow:

Molar mass of Al = 27 g/mol

Mass of Al from the balanced equation = 4 × 27 = 108 g

Molar mass of O₂ = 16 × 2 = 32 g/mol

Mass of O₂ from the balanced = 3 × 32

= 96 g

Molar mass of Al₂O₃ = (27×2) + (16×3)

= 54 + 48

= 102 g/mol

Mass of Al₂O₃ from the balanced equation = 2 × 102 = 204 g

SUMMARY:

From the balanced equation above,

108 g of Al reacted with 96 g of O₂ to produce 204 g of Al₂O₃.

Next, we shall determine the limiting reactant. This can be obtained as follow:

From the balanced equation above,

108 g of Al reacted with 96 g of O₂.

Therefore, 10 g of Al will react with

= (10 × 96)/108 = 8.89 g of O₂.

From the calculation made above, we can see clearly that only 8.89 g out of 19 g of O₂ given, reacted completely with 10 g of Al.

Therefore, Al is the limiting reactant and O₂ is the excess reactant.

Finally, we shall determine the mass of aluminium oxide, Al₂O₃, produced from the reaction.

NOTE: in this case, the limiting reactant will be used because it will give the maximum mass of the aluminium oxide, Al₂O₃ as all of it is consumed in the reaction.

Al is the limiting reactant and the mass of aluminium oxide, Al₂O₃ produced can be obtained as follow:

From the balanced equation above,

108 g of Al reacted to produce 204 g of Al₂O₃.

Therefore, 10 g of Al will react to produce = (10 × 204)/108 = 18.89 g of Al₂O₃.

Thus, 18.89 g of Al₂O₃ were obtained from the reaction.

4. Completa el texto con las siguientes palabras del listado. La contaminación por ? Es una alteración ? Que destruye la vegetación, ? Y el suelo y afecta el ? , es el resultado de la quema de ? Y gases industriales nocivos.

Answers

Answer:

Actividades humanas y vida marina.

Explicación:

La contaminación ocurre por actividades humanas que se considera una alteración en el medio ambiente. Esta contaminación provocada por el ser humano puede destruir la vegetación, el suelo y afectar negativamente a la vida marina. Esta destrucción que se produce en el medio ambiente es el resultado de la quema de combustibles fósiles que liberan gases industriales nocivos en la atmósfera por lo que si queremos proteger nuestro medio ambiente de mayores daños tenemos que reducir las actividades que provocan la liberación de gases nocivos en la atmósfera. .

II. Which statement seems more likely to be true?
A.
Double replacement reactions are always neutralizations.
B.
Neutralizations are always double replacement reactions.

Answers

Answer:

B

Explanation:

Neutralisations are always double replacement reactions

the answer is B have a great rest of your day

can someone check if i did this right. thank you !!​

Answers

Answer:

noo

Explanation:

its basic

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

Answer: acidic

Explanation:

I.
Look at the pictures below. What can you say about them?
Describe their similarities and differences. Write your answer in
your notebook
Www
cowo
Politics
SXO
is​

Answers

Answer:

Hey , I can't see the picture

What volume of water is needed to make up a 6.00% (m/v) solution of copper (II) sulphate when 12.0 g of it will be added to water?

Answers

Answer:

200 mL of water is needed to make up a 6.00% (m/v) solution of copper (II) sulphate when 12.0 g of it will be added to water.

Explanation:

The solution is the result of the mixture between the solute, which is the substance that dissolves, and the solvent, which is the substance in which a solute dissolves. That is, a solution (or solution) is a mixture of two or more components, perfectly homogeneous since each component is intimately mixed with the other.

The concentration of solutions is the amount of solute contained in a given amount of solvent or solution. A unit of concentration is the percent weight to volume.

The percent weight to volume is the percentage ratio between the weight of the solute and the volume of the solution. It is calculated as:

[tex]Percent =\frac{mass of solute}{volume of solution} *100[/tex]

Mass is measured in grams, while volume is measured in mL.

In this case:

Percent weight to volume= 6%mass of solute= 12 gvolue of solution= ?

Replacing:

[tex]6=\frac{12 g}{volume of solution} *100[/tex]

Solving:

volume of solution*6= 12 g*100

[tex]volume of solution=\frac{12 g}{6} *100[/tex]

volume of solution= 200 mL

200 mL of water is needed to make up a 6.00% (m/v) solution of copper (II) sulphate when 12.0 g of it will be added to water

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