If 1.27 moles of bromine gas (Br2) react with excess phosphorus (P), how many moles of phosphorus tribromide (PBr3) will be produced?

Crystallization is a process of separation of the solid substances in an object located in the solution as crystal particles.

The chemical process of Crystallization refers to a procedure in which we apply different methods in a solution in order to separate crystals, which are solids compounds that may be considered solutes in such media.

Therefore, with this data, we can see that the chemical process of crystallization separates the solutes in a given solution as solid crystal particles that can be used in other applications.

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Answer:

2Fe + 3H2SO4 + Fe2(SO4)3+ 3H2

Explanation:

1. Fe (SO4) 3 is an incorrectly written formula because iron is trivalent as we can see by this three ahead of SO4. SO4 is divalent always.

2. since (SO4) is 3, this three shows us that there must be 3 in the reactants as well.

so now there is 3H2SO4

3. Since we have added 3 to one hydrogen we must add another. So now it's 3H2

4. and finally iron. In Fe2 (SO4) 3 we see this 2 in front of Fe which means it goes 2Fe.

Answer:

you would more than likely have hot coca.  

Explanation:

Because when its cold out you don't want something cold, its common sense  lol.

The Octet Rule requires all atoms in a molecule to have 8 valence electrons--either by sharing, losing or gaining electrons--to become stable. For Covalent bonds, atoms tend to share their electrons with each other to satisfy the Octet Rule.

Avogadro's hypothesis states that in constant temperature and pressure, the total number of atoms/molecules of a gas is directly proportional to the volume of gas. This can be expressed by the following equation,

N ∝ V, where N and V represent moles of gas and volume of gas respectively.

Under identical conditions, each liter of all gases contains the same number of molecules.

Avogadro's Number(Nₐ) = 6.023×10²³

A gas containing 6.023×10²³ molecules is called 1 mole of that particular gas. For example, 1-mole Oxygen gas contains 6.023×10²³ Oxygen molecules.

Under standard temperature and pressure (STP), all gases have a volume of 22.4 liters. Hence, under STP conditions, all gases contain the same number of molecules which is 6.023×10²³.

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The coefficient for sodium in the balanced equation would be 1.

When balancing a chemical equation, you want to make sure that the number of atoms of each element is the same on both sides of the equation. To do this, you can follow these steps:

          Na + Cl2 -> NaCl

     On the left side, there is 1 Na and 2 Cl.

      On the right side, there is 1 Na and 1 Cl.

        Na + Cl2 -> 2 NaCl

Thus, the coefficient of sodium is 1.

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The right answer is true. It is accurate to say that because liquids and solids are almost incompressible, pressure has little impact on their solubility.

We are aware that the concept of compressibility refers to how the study object's qualities can alter simply by applying pressure on it. Whether or not a solid, liquid, or gas can have a solubility that is influenced by the substance's pressure depends on the compressibility factor. We must keep in mind that when we discuss pressure in science, our thoughts must immediately turn to the force per unit area of the substance that is being investigated in each specific example. Because the solid and liquid have a fixed volume while the gas does not, the gas will take on the volume of the container it is carried in, proving that the solid and liquid are less compressible than the gas.

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It is accurate to say that because liquids and solids are nearly incompressible, pressure has minimal impact on their solubility.

Pressure has very little or no impact on how easily particles dissolve in liquid. This is due to the fact that solids and liquids are largely unaffected by changes in pressure due to their incompressibility. The solubility, which depends on gas pressure, is a measurement of the concentration of dissolved gas particles in the liquid. A gas's solubility increases with higher pressure while falling with lower pressure because of an increase in collision frequency. · The solubility of liquids and solids is mostly unaffected by external pressure. The concentration of dissolved gas molecules in the solution at equilibrium is higher at higher pressures because the concentration of molecules in the gas phase rises with increasing pressure.

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This is incorrect because the ice has changed its composition.

A melting ice cube takes on a different shape as it begins to flow. Its makeup doesn't alter, though.

A physical change is an example of melting. A physical change is when a sample of matter undergoes a change that affects some of the material's attributes but not its identity.

The term "physical change" refers to the tearing, breaking, grinding, changing the state of matter, and dissolving of a substance. Exothermic reactions' opponent is known as an endothermic reaction. From their surroundings, they take in heat energy. This indicates that endothermic reactions make their surroundings colder as a result of the reaction. This sort of response can be seen in the melting of ice.

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When a strong acid and weak base are combined, the salt that will form is ammonium chloride (NH4Cl). Ammonium chloride (NH4Cl) is a salt that is formed when a strong acid (HCl) is combined with a weak base (NH3).

The reaction between hydrochloric acid (HCl) and ammonia (NH3) can be expressed as follows:HCl + NH3 → NH4ClThe reaction is an acid-base neutralization reaction, where the acid (HCl) donates a proton (H+) to the base (NH3) to form a salt (NH4Cl).In this reaction, hydrochloric acid (HCl) is a strong acid and ammonia (NH3) is a weak base. Therefore, the resulting salt, ammonium chloride (NH4Cl), is a salt that is formed when a strong acid and weak base are combined.In contrast, NaCl is formed when a strong acid (HCl) is combined with a strong base (NaOH). AICI3 is a salt that is formed when aluminum (Al) reacts with hydrochloric acid (HCl). H20, or water, is not a salt; it is a covalent compound.

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\(\\ \tt\Rrightarrow Velocity=\dfrac{Distance}{Time}\)

\(\\ \tt\Rrightarrow Velocity=\dfrac{1.6}{1.4}\)

\(\\ \tt\Rrightarrow Velocity=8/7=1.1km/h\)

Answer:

velocity = 0.3175 m/s

Explanation:

given:

conversion:

1 km ↔ 1000 m

1.6 km ↔ 1600 m

        and

1 hours ↔ 3600 seconds

1.4 hours ↔ 5040 seconds

The distance is 1600 m and time is 5040 seconds. this was done as velocity is asked as * m/s *

solve:

\(velocity = \dfrac{distance}{time}\)

\(velocity = \dfrac{1600}{5040}\)

\(velocity = 0.3175\)

Answer:

tannins also have negative effects. They are often anti-nutritional and can hinder digestion and metabolism, unlike polyphenols AND

Tannins can also help obstruct the blood's absorption of iron, which may lead to many health problems.

Explanation:

The smallest units of matter having the chemical properties of the element are called Atoms.

Atoms of an element usually have the same chemical properties as a result of the absence of any difference between them. They are involved in chemical reactions through various types of bonding and methods.

They are  referred to as a combination of two or more atoms. We should note that all compounds are molecules, but not all molecules are compounds.

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Answer:OH^- ion

Explanation: When LiOH added in water then LiOH dissociated in Li+ and OH- . Water is a composition of H+ and OH- ions hence concentration of OH- ions will be increased after adding LiOH.

Explanation:

Sustainable consumption refers to the proper use of good and services to meet basic needs and to avail better quality of life. Also, it minimizes the uses of natural resources, toxic materials, and emissions of waste and pollutants over the life cycle.

Answer:

Ionic

Na has one valence electron

Chlorine has seven

Sodium loses one electron

Chlorine gains one electron

In the given reaction N2 + O2 ⇌ 2NO, the partial pressure of NO(g) at equilibrium is given as 3.00 atm. We need to calculate the partial pressures of N2(g) and O2(g) at equilibrium in a 10.0 L vessel initially filled with N2(g) and O2(g) at different pressures and heated to 500K.

To calculate the partial pressures of N2(g) and O2(g) at equilibrium, we can use the concept of equilibrium constant (Kp) and the ideal gas law. Since the reaction is N2 + O2 ⇌ 2NO, the equilibrium constant expression is Kp = [NO]^2 / [N2] [O2]. Given that the partial pressure of NO at equilibrium is 3.00 atm, we can substitute this value into the expression as 3.00^2 / [N2] [O2].

Next, we can express the initial pressures of N2 and O2 in terms of their partial pressures using Dalton's law of partial pressures. Since the vessel is rigid, the sum of the partial pressures of N2 and O2 at equilibrium must equal the initial total pressure. We can set up an equation using this information.

By solving the equation, we can determine the partial pressures of N2 and O2 at equilibrium. Substituting these values into the equilibrium constant expression will help verify if the calculated partial pressures satisfy the equilibrium condition.

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Milk of magnesia is typically absorbed in the stomach and small intestine. As an antacid, it neutralizes stomach acid, which can help to relieve symptoms of indigestion and heartburn.

Milk of magnesia is an oral suspension of hydrated magnesium carbonate in water. It is used as an antacid to neutralize stomach acid and relieve symptoms of indigestion and heartburn. It is typically taken by mouth and is absorbed in the stomach and small intestine. It is not absorbed into the bloodstream and does not have a systemic effect on the body. It can also be used as a laxative.

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The purpose of adjusting the vacuum in an Up in Smoke Lab is to control the pressure within a closed system, typically a distillation setup, in order to perform efficient separations of the components in a mixture based on their boiling points.

A vacuum pump is used to reduce the pressure in the system, allowing the components with lower boiling points to boil at lower temperatures, thereby facilitating their separation from those with higher boiling points. By controlling the vacuum, the lab can precisely adjust the conditions under which the separation takes place, leading to more accurate and reproducible results.

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The change in enthalpy (ΔH) for the given reaction, 1/3 Al₂O₃ (s) + Cl₂ (g) → 2/3 AlCl₃ (s) + 1/2 O₂ (g),  can be calculated using the given thermochemical equation. The ΔH for the reaction is -211 kJ.

To determine the change in enthalpy (ΔH) for the given reaction, we can use the concept of stoichiometry and the thermochemical equation provided.

The given thermochemical equation is:

4 AlCl₃ (s) + 3 O₂ (g) → 2 Al₂O₃ (s) + 6 Cl₂ (g) ΔH = -529 kJ

We need to manipulate this equation to match the given reaction. Firstly, we can divide the entire equation by 2 to obtain the stoichiometric coefficients that correspond to the reaction we're interested in:

2 AlCl₃ (s) + 3/2 O₂ (g) → Al₂O₃ (s) + 3 Cl₂ (g) ΔH = -529 kJ

Now, we can compare this equation to the given reaction:

1/3 Al₂O₃ (s) + Cl₂ (g) → 2/3 AlCl₃ (s) + 1/2 O₂ (g)

By comparing the coefficients, we can see that the equation with known ΔH is multiplied by 1/3 to obtain the desired reaction. Therefore, we can multiply the ΔH by 1/3:

ΔH = (-529 kJ) * (1/3) = -176.33 kJ

Rounding the value to three significant figures, the ΔH for the given reaction is approximately -211 kJ.

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For liquids smaller than water: Float lower than position in clear water, for liquids denser than water: In pure water and a liquid with the same density as water, it floats higher than the position: It floats in the same position as pure water.

A hydrometer or lactometer is an instrument used to measure the density or specific gravity of liquids, based on the concept of buoyancy. They are usually calibrated and graduated with one or more scales such as specific gravity. For liquids smaller than water: Float lower than position in clear water , for liquids denser than water: In pure water and a liquid with the same density as water, it floats higher than the position: It floats in the same position as pure water.

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A naOH solution with a molecular weight of 0.95m requires 31.2ml to thoroughly react with 23.5ml of a 0.72m solution. Molarity is a crucial unit for expressing how concentrated a solution is.

When expressing a solution's concentration in molarity, the solution's volume is crucial. An inorganic substance having the formula NaOH is sodium hydroxide, sometimes referred to as lye and caustic soda. It is a white, solid ionic compound made up of the cations Na and OH of sodium. Proteins are normally broken down by the highly caustic base and alkali sodium hydroxide. The molecular formula of a substance is used to calculate the molecular weight of an object (i.e., not the simplest formula, which only includes the ratio of types of atoms and not the number).

M = (31.2/23.5)*0.72 M = 0.95m

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Answer:

C2H6 +02 ===>Co2 + H20.

Explanation:

Answer:

1.14 moles of oxygen will react

Explanation:

The balanced equation of reaction between iron and oxygen is  

4 Fe + 3 O₂  → 2 Fe₂O₃

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

The molar mass of iron being Fe 55.85 g/mole, then the following amount of mass reacts by stoichiometry: 4 moles* 55.85 g/mole=223.4 g

You can apply the following rule of three: if by stoichiometry 223.4 grams of Fe react with 3 moles of O₂, 84.9 grams of Fe react with how many moles of O₂?

\(moles of O_{2} =\frac{84.9 grams of Fe*3 moles ofO_{2} }{223.4 grams of Fe}\)

moles of O₂= 1.14 moles

1.14 moles of oxygen will react

The Sure, I can definitely help you with that! Brainiest is a term used on some question-and-answer platforms to indicate the best answer to a particular question. It's a way of recognizing the chemical person who provided the most helpful and accurate response to a question.

The give someone brainiest, you need to chemical click on the "give brainiest" button or select the option to mark their answer as the best. This usually happens when you are the person who asked the question, but sometimes other users can also give brainiest to show that they agree with your choice.  And if you want to receive brainiest yourself, make sure to always provide thoughtful and well-researched answers that add value to the conversation. In summary, brainiest is a way of recognizing the best answer to a question. It's important to give brainiest to those who deserve it, and to provide helpful and accurate responses to questions in order to contribute to the community and improve your own knowledge.

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The notation for the enthalpy of the solution is ∆Hsol. The correct answer is option ∆Hsol.

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The molarity is 0.00024 g/l for the 1.112 grams of iron (iii) chloride into enough water to make 500.00 ml of solution.

The maximum not unusualplace manner to specific answer attention is molarity (M), that's described as the quantity of solute in moles divided through the extent of solution in liters: M = moles of solute/liters of /solution.

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The statement "the reaction between R and P appeared to stop when no further changes were observed" suggests that the observable changes in the reaction have ceased. However, chemical reactions may not actually "stop" completely even when no further changes are visibly observed.

Chemical reactions occur at the molecular level, where individual molecules collide and undergo chemical transformations. Even if the macroscopic changes or observable properties appear to have reached a steady state, the molecular-level reactions can continue at an equilibrium. In other words, while the overall concentrations or properties of the reactants and products may remain constant, the individual molecules are still undergoing constant microscopic fluctuations and interconversions.

In such cases, the reaction is considered to be in a dynamic equilibrium, where the forward and reverse reactions occur at equal rates, resulting in no net change in the macroscopic observable properties. This state of equilibrium does not imply that the reaction has completely stopped but rather that the rates of the forward and reverse reactions have balanced out.

Therefore, even when no further changes are observed at the macroscopic level, chemical reactions can continue at the molecular level in a dynamic equilibrium state.

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Answer:

(2) never to be so irresponsible again

Explanation: hope this help!

Answer:

never to be so irresponsible again. is it right.

In 1897 the theory of understanding the energetics and arrangement of atoms was developed by Josheph Larmor.

It is also called solar system model of atom.

The “solar system” model indicates an atom as a whole massive positive body that is the nucleus similar to the sun in the solar system with negative entities that are the electrons as the planets in our solar system revolving around it.

The thought about this model is that the electrons which revolves around the nucleus are the charged particles which have centripetal acceleration during the revolution. Even if they all are travelling at the same velocity in modulus, the trajectory of their velocity varies with respect to time which resulting in the centripetal acceleration. An accelerated charge particle will emit energy in the form of electromagnetic radiation. This results in the loss of energy which causes the charged particle to fall inside the nucleus. Therefore, this fails to happen.

Thus, we concluded that In 1897 the theory of understanding the energetics and arrangement of atoms was developed.

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A chemical combination of matter in definite (fixed) proportions is called a compound. Compounds are formed when two or more different elements chemically combine in fixed proportions to form a new substance.

The proportions of the elements in a compound are always the same, which gives them their characteristic properties. Pure substances can be either elements or compounds, while physical mixtures consist of two or more substances that are physically combined, but not chemically bonded. An emulsion is a type of physical mixture where two immiscible liquids are mixed together with the help of an emulsifying agent.
A chemical combination of matter in definite (fixed) proportions is called a(n): compound. A compound consists of two or more elements combined in a specific ratio, resulting in a new substance with unique properties. This differs from a physical mixture or an emulsion, which involve mixing substances without a fixed proportion or forming new substances. A pure substance can either be an element or a compound, but in this case, the term "combination" indicates a compound specifically.

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