Which process caused initially by nitrogen monoxide emissions from jet or automobile engines is not involved in contributing to acid deposition?A: NO(g) + H2O(l) → H2NO2(aq)B: 2NO2(g) + H2O(l) → HNO2(aq) + HNO3(aq)C: 2NO(g) + O2(g) → 2NO2(g)D: 4NO2(g) + O2(g) + 2H2O(l) → 4HNO3(aq)

Answer:

CuO+2HCl>h2o+CuCl2

fe203+6hcl->2fecl3+3h2O

gọi CuO, fe2o3 lần lượt là x,y

80x+160y=10

2x+6y=0.35

giải phương trình ta dc hai số x,y(tính phương trình kia ra)

cuo ban đầu sẽ là :60*x=z

fe203 ban đầu sẽ là :10-z=

Explanation:

Answer: 20 , 40

I want know the answer now !

Answer: A bond formed between atoms due to sharing or complete transfer of electrons is termed as "atomic bond". These are the intramolecular forces that hold atoms together in molecules.

Answer:

wind and water erosion

Answer:

C is the answer

If you need help, ask a parent or teacher. Or yes, one of us can help! Just let us know what you're having trouble with, and we can see how we can help.

When an electron transitions from a higher energy level to a lower energy level in an atom, energy is emitted. Conversely, when an electron transitions from a lower energy level to a higher energy level, energy is absorbed.

In the case of hydrogen, the transition from n=2 to n=6 corresponds to the electron moving from a higher energy level to a lower energy level. Therefore, energy is emitted during this transition.

The transition from an orbit with a radius of 4.76 Å to an orbit with a radius of 0.529 Å corresponds to the electron moving from a higher energy level to a lower energy level as well. Hence, energy is emitted during this transition.

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Answer: true

Explanation:

Answer: true

Explanation:

Answer:

A ball is thrown straight up from a rooftop 320 feet high. The formula below describes the ball's height above the ground, h, in feet, t seconds after it was thrown. The ball misses the rooftop on its way down and eventually strikes the ground. How long will it take for the ball to hit the ground? Use this information to provide tick marks with appropriate numbers along the horizontal axis in the figure shown.

h=-16t^2+16t+320

Answer:

Increase

Explanation:

Fe + CuSO4 - - > Fe2(SO)3 + Cu

If concentration of Fe increases, it will increase the frequency of collisions between the two reactants. Therefore the amount of Cu will also increase.

According to World Population Review 2022 the safest country to live are as follows.

These countries are listed safe by calculating global peace index.

This index measures the nation's and regions peacefulness and is finally reviewed by Institute of Economic and Peace (IEP).

The role of IEP is to measure peace at the worldwide and country level degree and lets us to evaluate the social, political and financial elements that create peace. Each year the Institute for Economics and Peace produces the Global Peace Index, the world’s main degree of countrywide peacefulness, rating 163 nations in line with their ranges of peace.

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In muscle function at the sarcomere level, the regulation of cross-bridge formation is dependent on the binding of calcium ions to the protein troponin. Hence, the correct answer is B. calcium; troponin.

In muscle function at the sarcomere level, the formation of cross-bridges between actin and myosin filaments is regulated by the binding of calcium ions to troponin. Troponin is a regulatory protein complex that is associated with the actin filaments in the sarcomere. When calcium ions bind to specific binding sites on troponin, it causes a conformational change in the troponin-tropomyosin complex. This conformational change exposes the active sites on actin, allowing the myosin heads to bind to actin and form cross-bridges. This interaction between actin and myosin leads to muscle contraction.

Sodium ions do not directly regulate the formation of cross-bridges in muscle function. Tropomyosin is a structural protein that is involved in covering the binding sites on actin in the absence of calcium. However, it is the binding of calcium ions to troponin that initiates the conformational change in the troponin-tropomyosin complex, allowing the cross-bridge formation and muscle contraction to occur.

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In the novel "A Separate Peace" by John Knowles, Gene changes his mind about enlisting in the war when he realizes that Finny, his close friend, is returning. This change of mind can be interpreted as a shift in Gene's perspective and priorities.

Initially, Gene's decision to enlist in the war could be seen as driven by a sense of duty, honor, or the desire to prove himself. However, upon learning about Finny's return, Gene experiences a change of heart. It suggests that his friendship with Finny holds more significance to him than the pursuit of external validation or conformity to societal expectations.

This change of mind may reflect the growth of Gene's character throughout the novel. It signifies a realization of the value of personal relationships and the importance of emotional connections over external achievements.

Gene's decision to prioritize his friendship with Finny over enlisting in the war highlights his desire for a sense of belonging, camaraderie, and a more meaningful purpose in life.

Furthermore, this change of mind could also indicate a sense of guilt or remorse within Gene. The story explores themes of jealousy, competition, and the consequences of destructive impulses.

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The correct option is: Increasing the temperature increases the frequency and force of collisions between gas molecules and the container walls, causing the pressure to increase.

When the temperature of a gas in a closed container is increased, the gas molecules gain kinetic energy and move faster, colliding with the container walls more frequently and with greater force.

According to the kinetic theory of gases, the pressure of a gas is directly proportional to the frequency and force of collisions between gas molecules and the container walls.

Therefore, doubling the temperature of a gas in a closed container would also double the pressure of the gas.

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Chemists use structural formulas for organic compounds because they provide more detailed information about the arrangement of atoms and bonds in a molecule than molecular formulas such as C5H12. Structural formulas show the specific bonding patterns between atoms in a molecule, indicating which atoms are connected by single, double, or triple bonds.

This information is important for understanding the physical and chemical properties of a compound, as well as for predicting its behavior in reactions. In contrast, a molecular formula only gives the ratio of different types of atoms in a molecule, without providing any information about how they are connected. This means that two molecules with the same molecular formula may have different structures and therefore exhibit different properties. By using structural formulas, chemists can better understand the structure and function of organic compounds.

Additionally, organic compounds can have isomers, which are molecules with the same molecular formula but different structural formulas. These isomers can have vastly different properties and reactivity, so it is important to distinguish between them. Structural formulas allow chemists to identify and differentiate between isomers, which is crucial for studying organic chemistry. Therefore, structural formulas are more informative and precise than molecular formulas when it comes to studying organic compounds.

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The rate of temperature is the ratio of temperature difference to the difference in time. The rate of temperature for a  change of 68 F to 75 F from 7 am to 3 pm is 0.625 F/hr.

Temperature is the measure of overall heat of a body or a region. Temperature level of a body or a place vary according to the time and some other factors such as pressure, seasonal changes such as rain, wind etc.

At morning to afternoon time the rate of temperature will be higher and to evening there might occur a slight decline.

Given that the time changes from 7 am to 3 pm thus, rate of time is 8 hrs. Then the temperature changes from, 68 faraday to 75 faraday thus the difference in temperature is 75-68= 5 faraday.

Now, the rate of temperature is calculated by taking the ratio of change in temperature to the change in time as follows:

(5 Faraday) / 8 hrs. = 0.625 F/hr.

Therefore, the rate of temperature change is 0.625 F/hr.

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Answer:

11.40x10-7

Explanation:

9.80+1.60x10-3-4

11.40x10-7

Answer:

They have the exact same name at the first but the yacca plant must be eaten by the yacca moth because if the animal doesn't eat it will die of hunger

Answer:

its B

Explanation:

The relationship between yucca moths and yucca plants is an example of obligate mutualism. Many species of yucca plant can be pollinated by only one species of yucca moth, while those yucca moths use the yucca flowers as a safe space to lay their eggs.

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To get a dose of 0.1 gm (100 mg), 1.5 ml of sodium amytal solution must be injected intramuscularly (IM).

We can use the available concentration and the desired dose.

Given

First, we need to convert the desired dose from grams to milligrams:

0.1 g = 100 mg

Now, we can set up a proportion to find the volume of solution needed:

(100 mg) / (200 mg) = (x ml) / (3 ml)

Cross-multiplying and solving for x:

100 mg * 3 ml = 200 mg * x ml

300 mlmg = 200 mlmg

x ml = (300 ml*mg) / (200 ml)

x ml = 1.5 ml

So, To get a dose of 0.1 gm (100 mg), 1.5 ml of sodium amytal solution must be injected intramuscularly (IM).

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Answer:

single replacement

Explanation: N/A

Answer:

Larger

Explanation:

A graph can be defined as the graphical representation of data (information) on both the horizontal and vertical lines, which are called the x-axis and y-axis respectively.

In Science, there are different types of graph and these include:

The correct type of graph that can be used to depict their data sets are:

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Sodium (Na) and chlorine (Cl) are the largest dissolved components in ocean water due to the abundance of sodium and chloride ions in the Earth's crust and the continuous input of these elements into the oceans through various processes. Sodium is one of the most common elements in the Earth's crust, and chlorine is widely distributed in rocks, minerals, and salts.

Over millions of years, weathering of rocks, volcanic activity, and erosion release these elements into rivers and ultimately into the oceans. The combination of sodium and chlorine ions results in the formation of sodium chloride, which is commonly known as table salt and contributes to the salinity of seawater.

The most abundant dissolved gas in ocean water is carbon dioxide (CO2). Carbon dioxide dissolves in the surface waters of the ocean through gas exchange with the atmosphere. It plays a crucial role in regulating the pH of seawater and is an essential component of the carbon cycle. Carbon dioxide is involved in various biological and chemical processes in the ocean, including photosynthesis by marine plants and the formation of calcium carbonate shells by marine organisms. Additionally, the increase in atmospheric carbon dioxide due to human activities has led to ocean acidification, which is a significant concern for marine ecosystems.

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Due to the fact that they combine to form the ionic compound sodium chloride (NaCl), also known as salt, sodium (Na) and chlorine (Cl) are the two most abundant dissolved elements in ocean water.

Thus, Salts are among the many dissolved compounds that water from rivers and streams transports into the ocean.

In particular, sodium and chloride ions have accumulated in the ocean throughout time, leading to the high concentration of these elements in seawater. Magnesium, calcium, potassium, and sulphate ions are among the other dissolved substances in ocean water.

Oxygen  is the dissolved gas that is most prevalent in ocean water.

Thus, Due to the fact that they combine to form the ionic compound sodium chloride (NaCl), also known as salt, sodium (Na) and chlorine (Cl) are the two most abundant dissolved elements in ocean water.

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Answer:

chemical synthesis or chemical property

Explanation:

Answer:

Detail is given below.

Explanation:

1) Chemical change cannot be undone or reversed.

The given statement is correct. Because,

Chemical change:

The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.

These changes are irreversible .

Example:

Combustion of fuel or wood: that oil or wood convert into energy, CO2 and ash in case of wood  and this reaction can not be reversed.

2) Physical change often cannot be undone or reversed.

The given statement is incorrect.

Physical Change                                                                                              

The changes that occur only due to change in shape or physical properties but their chemical or internal composition remain unchanged.  

These changes were reversible.

Example :

Water converting to Ice

Water converting to gas

3) In chemical change, you end up with the same substance you started with

The given statement is incorrect. Consider the following example.

The reaction of Hydrogen and oxygen:

H₂ (g)  + O₂  (g) -------------------------------------> 2H₂O  (l)

A totally new compound is formed when oxygen and hydrogen are undergo reaction which is water.

4) In physical change, particles of 2 or more substances rearrange to form new or different substance.

The given statement is incorrect.

When particles rearrange them selves the different substance is not formed. Consider the example of water when it converted into ice or vapors. Only phase is changed but water retain its properties so new substance is not formed.

Universe, Stars, Planets, Asteroids

Answer:

Universe, Stars, Planets, Asteroids

Explanation:

If CH\(_{3}\)COOH(aq) is used in place of glacial acetic acid in an experiment, the yield will be affected by being reduced  due to the difference in concentration and purity of the two solutions.

Glacial acetic acid is a highly concentrated and pure form of acetic acid, while CH\(_{3}\)COOH(aq) is a diluted solution of acetic acid in water. This may lead to a lower yield of the desired product as the reaction may not proceed as efficiently. Additionally, the impurities present in CH\(_{3}\)COOH(aq) may also interfere with the reaction, further reducing the yield. Therefore, it is important to use the correct reagents and ensure that they are of high purity to obtain accurate and reliable results in the experiment.

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The process which involves the addition of a hydrogen molecule to compounds containing multiple bonds will be known as hydrogenation reaction.

Unsaturated hydrocarbons are transformed into saturated hydrocarbons by the addition process when they interact with hydrogen gas and nickel. The term "hydrogenation reaction" is also employed to describe this process.

In the production of fats and oils, hydrogenation seems to be crucial for two reasons. It increases the oil's oxidative stability and turns liquid oils become semisolid or plastic fats for use in shortenings as well as margarine, among other things.

Therefore, the process which involves the addition of a hydrogen molecule to compounds containing multiple bonds will be known as hydrogenation reaction.

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Answer:

There are five types of kinetic energy: radiant, thermal, sound, electrical and mechanical. Let us look at some of the kinetic energy examples and learn more about the different types of kinetic

hope it is helpful to you

21 L moles of hydrogen were added because hydrogen may make many metals, particularly the carbon steel often used in gas pipes, brittle.

Where may hydrogen be found?

Hydrogen is still a characteristic of something like the sun or most stars; it also makes up the bulk of Jupiter. Hydrogen in the form of water is the type of hydrogen that is most prevalent on Earth. It is a gas that is only very weakly presence in the atmosphere, with a physical concentration compared with fewer than 1 part per million.

H2 or H2o: which is hydrogen?

Hydrogen, with a molecular concentration of 1, is represented by the chemical formula H2. That lightest material is hydrogen, symbol H, which has atomic number one. The gas, which has the chemical formula H2, is extremely flammable, tasteless, and white.

Briefing:

V₁/n₁  =  V₂/n₂

3.9 L / 2.6 mol =  V₂/ 14 mol

V₂ =3.9 L × 14 mol  / 2.6 mol

V₂ = 54.6 L /2.6

V₂ = 21 L

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