How do you figure out what roman numeral to use? Give a specific example

Answer: static electricity

Explanation: rubbing the comb creates. Static charge to comb

If a reaction reaches to completion it means entire amount of reactants has been converted into products. On the other hand, if a reaction reaches equilibrium no net change in amounts of reactants & products occur.

What is equilibrium?

An equilibrium represents a state in process when observable properties such as colour, temperature, pressure, concentration etc do not show any change.

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Water cycle interact directly or indirectly with Geosphere, Biosphere, Hydrosphere, and Atmosphere and is denoted as option A.

This is also referred to as hydrologic cycle and involves the continuous circulation of water in the Earth-atmosphere system through series of processes which occur naturally.

Water comprises of processes such as condensation,precipitation etc which occurs in the Geosphere, Biosphere, Hydrosphere, and Atmosphere due to the interaction in the areas mentioned.

This is therefore the reason why water cycle was chosen as the correct choice.

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In an electrolytic cell, a chloride ion would migrate through the solution to the positive electrode.

In an electrolytic cell, ions follow a specific path depending on their electronegativity and the location of electrode reactions.

From a general perspective, cations (positively charged ion) head towards the negatively charged electrode known as cathodes since this is where reduction takes place. Here they receive electrons resulting in their transformation into neutral atoms or molecules.

On the contrary, anions (negatively charged ion) will migrate towards positive electrodes - namely anodes - as these are sites for oxidation which entails loss of electrons to produce uncharged forms. In this case, chloride ion is negatively charged ion.

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Based on the variable temperature study, the formation of the complex ion appears to be an endothermic process. This can be observed by arranging the equilibrium constant for run 3 from cold to warm temperature. At room temperature, the equilibrium constant was found to be 0.75.

As the temperature increased, the equilibrium constant also increased. At the highest temperature, the equilibrium constant was found to be 1.5. This suggests that the formation of the complex ion becomes more favorable as the temperature increases, indicating an endothermic process.
It is important to note that at room temperature, the equilibrium constant was less than 1, suggesting that the reaction is not favored under these conditions. However, as the temperature increased, the equilibrium constant surpassed 1, indicating that the reaction became more favorable.
In conclusion, the data from the variable temperature study suggests that the formation of the complex ion is an endothermic process. As the temperature increases, the equilibrium constant increases, indicating that the reaction becomes more favorable. However, at room temperature, the reaction is not favored, and the equilibrium constant is less than 1. This information can be useful in designing reactions and determining optimal reaction conditions.

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The final pressure of the gas, rounded to the nearest tenth, is 1.9 atm. This result was obtained by applying the combined gas law formula, which relates the initial and final conditions of pressure, temperature, and volume for a gas.

To solve this problem, we can use the combined gas law, which relates the initial and final conditions of pressure, temperature, and volume for a given amount of gas. The combined gas law formula is:

(P1 × V1) / T1 = (P2 × V2) / T2

P1 = initial pressure

V1 = initial volume

T1 = initial temperature

P2 = final pressure (what we're trying to find)

V2 = final volume

T2 = final temperature

P1 = 1.9 atm

V1 = 12.8 L

T1 = 365 K

V2 = 9.9 L

T2 = 285 K

Let's substitute these values into the formula:

(1.9 atm × 12.8 L) / 365 K = (P2 × 9.9 L) / 285 K

P2 = (1.9 atm × 12.8 L × 285 K) / (365 K × 9.9 L)

Calculating this expression, we find that P2 ≈ 1.907 atm. Rounded to the nearest tenth, the final pressure of the gas is 1.9 atm.

The final pressure of the gas, rounded to the nearest tenth, is 1.9 atm. This result was obtained by applying the combined gas law formula, which relates the initial and final conditions of pressure, temperature, and volume for a gas. The calculations showed that the final pressure is approximately 1.907 atm, rounded to 1.9 atm.

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Therefore, the net ionic equation for the reaction is Copper(2+) (aq) + 2 chlorine- (aq) → Copper(II) chloride (aq).

Ammonium sulphate and Copper hydroxide precipitate are the first products of the reaction between copper sulphate and ammonium hydroxide.

Mixing copper(II) sulphate and ammonium chloride results in the following observations:

Conventional: When copper ions (Copper2+) from Copper(II) sulfate are present, a blue solution develops. The colour of Ammonium Chloride doesn't seem to have changed at all.

Ionic total: While Ammonium Chloride dissociates into Ammonium and Chlorine- ions in solution, Copper(II) sulfate dissociates into Copper2+ and Sulfate 2- ions.

Copper(II) sulfate (aq) + 2 Ammonium Chloride (aq) → Copper(II) Chloride (aq) + 2 Ammonium (aq) + Sulfate 2- (aq)

Net Ionic: The net ionic equation shows only the species involved in the reaction. In this case, the Copper2+ and the Cl- ions combine to form Copper(II) chloride.

Copper2+ (aq) + 2 Chlorine- (aq) → Copper(II) chloride (aq)

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It is a good idea to keep in mind which solvents can dissolve which solvents by saying "like dissolves like." Purely aromatic hydrocarbon cyclohexane is extremely hydrophobic and nonpolar, therefore it won't dissolve in a solvent that is highly polar or hydrophilic like water.

What is solubility?

The maximum amount of a material that may dissolve in another is known as its solubility. A saturated solution is created when a solvent can hold the most solute while still maintaining equilibrium.

The saying "like dissolves like" is a helpful reminder of which solvents can dissolve which solvents. Cyclohexane, a purely aromatic hydrocarbon, is exceedingly hydrophobic and nonpolar, therefore it won't dissolve in a highly polar or hydrophilic solvent like water.

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Answer:

0.0015 M

Explanation:

we know, M = n/V = 2.5/1000 = 0.0015 M

Answer:

A saturated solution may not be a concentrated solution IF the solute is only sparingly or slightly soluble in the solution.

The  things like magic, astrology and psychic predictions not considered science as it only consider on the proves given by the experiments and the theory not on the random predictions.

The science, any universe of source of knowledge that deals with the physical and chemical  world and its processes and that deals with the observations and experimentation with conclusion and results.

The magic is about the secret tricks done by magician and astrology is the observing the space and universe all above the earth and psychic deals with the human psychology.

Therefore, things like magic, astrology and psychic predictions not considered science as it only consider on the proves given by the experiments and the theory not on the random predictions.

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True. When ionic compounds are dissolved or thrown into water, they typically dissociate into ions and become electrolytes.

An electrolyte is a substance that conducts electric current when dissolved in water or molten form due to the presence of freely moving ions. Ionic compounds consist of positively charged cations and negatively charged anions held together by electrostatic forces. When they come into contact with water, the water molecules surround the ions and weaken the forces holding them together, causing the compound to dissociate into its constituent ions. These ions are then free to move in the aqueous solution and carry electric charge, allowing the solution to conduct electricity. Therefore, most ionic compounds can be considered electrolytes when dissolved in water.

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According to the forces of attraction the tungsten metal alloy that is W₂C( tungsten carbide) is most difficult to damage or change shape through force.

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion and an atom as well.It varies for different  states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

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Answer:

6,570,000

Rounded to 3 significant figures. The figures therefore are 6, 5, 7

Answer:

The calcium hydroxide solution will likely have the pH of 14 (very basic) while rain water will likely have a pH if 6.5 (slightly acidic).

Answer:

(b) that is hydrophobic

Explanation:

e.g, alanine

Cause, Alanine possess hydrophobic side chain and the most appropriate answer is (d) part......

Alanine is an aliphatic amino acid, because the side-chain connected to the α-carbon atom is a methyl group (-CH3), alanine is the simplest α-amino acid after glycine. The methyl side-chain of alanine is non-reactive and is therefore hardly ever directly involved in protein function..

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Answer:

(b) that is hydrophobic

Explanation:

e.g, alanine

Cause, Alanine possess hydrophobic side chain and the most appropriate answer is (d) part......

Alanine is an aliphatic amino acid, because the side-chain connected to the a-carbon atom is a methyl group (-CH3), alanine is the simplest a-amino acid after glycine. The methyl side-chain of alanine is non-reactive and is therefore hardly ever directly involved in protein function...

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Answer:

because u need one more assianment before it becomes 100

Explanation:

Answer:

False.

Explanation:

1. Most liquids do not have ionized atoms or particles within them, as the state of matter does not really allow that to freely happen.

2. Liquids may not have a definite shape, however, they have a definite volume. No matter the container you pour them into, their volume remains constant.

3. Liquids are not good conductors of electricity. Take for example water. Pure water does not conduct electricity

Hence, the statement is false with regards to liquids. However, it is true when talking about the foruth state of matter - Plasma

Answer:

Sodium hydroxide

Explanation:

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Nitric acid is a proton donor. (Acids are widely known as proton donors and the other cpds are bases).

Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.

Answer:

I can't understand your language? can you write in English

I'm sorry

We can make use of the fact that the total pressure of the mixture is the same as the sum of the partial pressure of all the gases in the container. As a result, 400 kPa is the third gas' partial pressure.

The overall pressure exerted by a mixture of gases is equal to the sum of the partial pressures of each of the constituent gases, according to Dalton's law of partial pressures. The partial pressure is the pressure that each gas would have if it occupied the same volume of the mixture at the same temperature on its own.

Mathematically, this can be stated as:

P_total = P_1 + P_2 + P_3

When we plug these figures into the formula, we get:

800 kPa = 100 kPa + 300 kPa + P_3

When we simplify this equation, we obtain:

800 kPa = 400 kPa + P_3

By taking away 400 kPa from both sides, we arrive at:

P_3 = 400 kPa

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Answer:299,800,000

Explain: The speed of light is 3.00x108m/s and in mph is 6.708 x 108.

The amount of energy in KJ that will be released after cooling down a 550g piece of clay is 35J (option C).

The heat energy released by a clay substance can be calculated by using the following expression;

Q = mc∆T

Where;

According to this question, a 550g piece of clay is cooled from 90°C to 20°C. The amount of heat released can be calculated as follows;

Q = 550 × 0.9 × {90 - 20}

Q = 34,650J

Q = 34.65KJ ~ 35KJ

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Answer:

The answer is "Ammonium nitrate is the reactant of this chemical reaction".

Explanation:

The Ammonium nitrate (NH4NO3)  is an ammonium and nitrate ionic crystalline solid. In water and hygroscopic as a strong, it's also highly soluble, although it does not form hydrates.

It uses as a nutrient for generating medications as well as leaven fertilizers and explosive materials. Nitrate in ammonium is sodium bicarbonate ammonium chloride. It is incendiary, an oxidizing agent, and a fertilizer.

The example of a reaction to which Markovnikov's rule applies is: CH₂=CH-CH₂-CH₃ + HBr → CH₂Br-CH₂-CH₂-CH₃

In this reaction, the hydrogen atom from HBr adds to the carbon atom with the fewer alkyl substituents (less substituted carbon), while the bromine atom adds to the carbon atom with more alkyl substituents (more substituted carbon). This follows Markovnikov's rule, which states that in the addition of a protic acid (such as HBr) to an asymmetrically substituted alkene, the hydrogen atom adds to the less substituted carbon and the other atom adds to the more substituted carbon.

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12.308% of the chemical is sulfur. The compound's whole sulfur content is transformed into barium sulfate. Therefore, the mass for sulfur from barium sulfate will match the mass for sulfur in the compound.

People are not highly poisonous to sulfur. However, consuming far to much sulfur may result in diarrhea or a burning feeling. Sulfur dust inhalation might irritate the airway or make one cough. The eyes and skin may also become irritated by it.

Sulfur can indeed be found in sulfide ores and in nature. It is native to areas close to volcanoes and hot springs. The tenth most common element, sulfur, is found in almost all types of plant and animal life, meteorites, ocean ocean, the humankind's crust, and or the atmosphere.

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Several amino acids serve as precursors for the synthesis of nucleotides. Among these amino acids, glycine and aspartic acid are the precursors for the synthesis of both purines and pyrimidines. Meanwhile, glutamine and aspartic acid serve as precursors for purine synthesis only, while cytosine synthesis requires aspartic acid, and thymine synthesis requires both aspartic acid and methionine.

The synthesis of nucleotides involves the conversion of amino acids to nucleotide bases through various biochemical reactions. The precursors required for purine and pyrimidine synthesis are different and involve different pathways.

Purines require the formation of a purine ring, while pyrimidines require a pyrimidine ring. The precursors for both pyrimidine and purine synthesis include aspartic acid and glycine, while glutamine is a precursor for purine synthesis only.

Aspartic acid is also a precursor for cytosine synthesis, while thymine synthesis requires both aspartic acid and methionine. These precursors are converted to nucleotide bases through a series of biochemical reactions, ultimately leading to the synthesis of nucleotides.

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Explanation:

everything can be found in the picture