How can I explain that orange juice is a homogeneous mixture ?

The ratio of the hydrogen masses in the compounds is 2: 3(Option A).

We know that compounds are composed of atoms and that compounds are formed by the combination of atoms. According to the atomic theory, the combination of the atoms with each other to form compounds occurs in a definite ratio.

From the law of multiple proportions, if two elements combine in such a way that they could lead to the formation of more than one type of compound, the combination occurs in such a way that masses of the second element that combines with first element are in simple ratios.

We can see from the statements in the complete question that the ratio of the hydrogen masses in the compounds is 2: 3(Option A).

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Answer:

737.52 mL de agua

Explanation:

En este caso solo debes usar la expresión de molaridad de una solución la cual es:

M = moles / V

Donde:

V: Volumen de solución.

Como queremos saber la cantidad de agua, queremos saber en otras palabras cual es la cantidad de solvente que se utilizó para preparar los 800 mL de disolución.

Una disolución se prepara con un soluto y solvente. El soluto lo tenemos, que es el nitrato de plata. Con la expresión de arriba, calculamos los moles de soluto, y luego su masa. Posteriormente, calculamos el volumen con la densidad, y finalmente podremos calcular el solvente de esta forma:

V ste = Vsol - Vsto

Primero calcularemos los moles de soluto:

moles = M * V

moles = 2 * 0.800 = 1.6 moles

Con estos moles, se calcula la masa usando el peso molecular reportado que es 169.87 g/mol:

m = moles * PM

m = 1.6 * 169.87 = 271.792 g

Ahora usando el valor de la densidad, calcularemos el volumen de soluto empleado:

d = m/V

V = m/d

V = 271.792 / 4.35

V = 62.48 mL

Finalmente, la cantidad de agua necesaria es:

V agua = 800 - 62.48

V agua = 737.52 mL

Answer:

C. Mass extinctions

Explanation:

Mass extinctions happen because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes. ... This event seems to be the combination of massive volcanic eruptions (the Deccan Traps) and the fall of a big meteorite.

Two solid reactants are mixed together to generate an unknown gaseous product, the molar mass of the unknown gas is approximately 14.06 g/mol. To determine the molar mass of the unknown gas, we can use Graham's law of effusion.

Graham's law states that the rate of effusion of a gas is inversely proportional to the square root of its molar mass. Mathematically, this can be represented as:

Rate₁ / Rate₂ = √(M₂ / M₁)

In this situation, Rate₁ is the rate of effusion for CO2, and Rate₂ is the rate of effusion for the unknown gas. M₁ is the molar mass of CO2 (44.01 g/mol), and M₂ is the molar mass of the unknown gas that we want to find. The problem states that the unknown gas effuses at a rate 1.77 times slower than CO2. Therefore:

1 / 1.77 = √(44.01 / M₂)

Squaring both sides:

1 / (1.77)² = 44.01 / M₂

Now, multiply both sides by M₂ and divide by (1.77)²:

M₂ = 44.01 / (1.77)²

M₂ ≈ 44.01 / 3.13

M₂ ≈ 14.06 g/mol

The molar mass of the unknown gas is approximately 14.06 g/mol.

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When H2CO3 dissociates into H and HCO3- the pH of water increases to an extent but not much.

       H2CO3-->H+ + HCO3-

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Decreased amount of product: When some of the product is spilled, the total amount of product available for weighing is reduced. This means that the measured yield will be lower than the expected yield.

Inaccurate measurement: The spilled product cannot be accurately included in the final yield measurement. This introduces an error in the measurement, as the spilled product cannot be accounted for.

Lower actual yield: As a result of the decreased amount of product and the inaccurate measurement, the actual yield will be lower than the expected yield. The actual yield represents the amount of product obtained after considering any losses, such as spillage or waste.

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Allied health acetylsalicylic acid means aspirin can be synthesized by combining salicylic acid and acetic acid through a condensation reaction. the group from phenol on the salicylic acid condenses with the carboxylic acid group of acetic acid, forming acetylsalicylic acid and condensation reaction means any of a class of reactions in which two molecules combine usually in the presence of a catalyst with elimination of water or some other simple molecule

Aspirin can be relieve pain and reduce the serious problems like heart attacks and strokes and aspirin are form of combining salicylic acid and acetic acid through in which two molecules combine in the presence of catalyst with elimination of water and the reaction is

salicylic acid + acetic acid →  acetylsalicylic acid

And then phenol on the salicylic acid condenses with the carboxylic acid group of acetic acid means

phenol + salicylic acid → carboxylic acid group of acetic acid

Structure of acetylsalicylic acid are given below

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The grams of calcium in the formula derived from calcium citrate , C₁₀H₁₀Ca₃O₁₄.4 H₂O is 0.843 g .

C₁₀H₁₀Ca₃O₁₄.4 H₂O is the formula of Calcium citrate . There is 3 calcium ions present in the calcium citrate .

                            Molecular weight of Ca = 40.08 g

                  ∴ Molecular weight of 3 Ca = 3 × 40.08

                                            = 120.24 g

Molecular weight of C₁₀H₁₀Ca₃O₁₄.4 H₂O = 570.5 g

∴ 120.24 g calcium are present in 570.5 g of calcium citrate

In 4 g calcium citrate ----- 120.24 g ÷ 570.5 g × 4 g

                                                       = 0.84304995618 g

                                                      ≈ 0.843 g

Therefore , the gram of calcium in the formula derived from calcium citrate , C₁₀H₁₀Ca₃O₁₄.4 H₂O is 0.843 g .

Calcium citrate is known calcium salt of citrus extract. It is frequently utilized as a food additive, typically as a preservative but occasionally as a flavor enhancer. It is comparable to sodium citrate in this regard. Some calcium supplements can also contain calcium citrate. Calcium is a mineral that can be found in foods naturally. Bone formation and maintenance are among the many normal body functions that require calcium.

Calcium deficiencies can be prevented and treated with calcium citrate. If you have trouble absorbing calcium, calcium citrate supplements can help you reach the recommended daily intake. The majority of people can get enough calcium from food alone. Calcium citrate is taken by some for bone health and to lower their risk of heart disease and cancer.

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Incomplete question , missing part is below :

The Formula For Compounding Sertraline Hydrochloride Capsules: Sertraline Hydrochloride (ZOLOFT Tablets, 100 Mg) 3 Tablets Silica Gel 6 G Calcium Citrate 4 G M.Ft. Caps No. 40

Sig: Use As Directed.

Calculate The Grams Of Calcium (M.W. 40.08) In The Formula Derived From Calcium Citrate, C₁₀H₁₀Ca₃O₁₄ · 4 H₂O (M.W. 570.5)

The formula for compounding sertraline hydrochloride capsules includes Sertraline hydrochloride (ZOLOFT tablets, 100 mg) 3 tablets, silica gel 6 g, calcium citrate 4 g, and M.ft. caps no. 40. The exact directions for use should be provided by a healthcare provider or pharmacist.

The formula provided contains the following components:

1. Sertraline hydrochloride: This is the active ingredient, sourced from 3 ZOLOFT tablets, each containing 100 mg of sertraline hydrochloride. This results in a total of 300 mg of sertraline hydrochloride.
2. Silica gel: This component, included at 6 g, serves as a desiccant, helping to keep the capsules dry.
3. Calcium citrate: Included at 4 g, calcium citrate serves as an excipient, aiding in the formulation of the capsules.

The formula indicates that the components should be mixed to create a total of 40 capsules. The label instructs the patient to "Use as directed," which means the dosage and administration should be followed according to the healthcare provider's instructions.

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Answer:

It's Mass

Explanation: I took the quiz

Have a good day!

Mass is the amount of matter in an object. Therefore, option C is correct.

Mass can be defined as an intrinsic property of a body. mass can be described as the quantity of matter in a body. Different atoms and different particles with the same amount of matter have nonetheless different masses.

Mass can be experimentally measured by the body's inertia, meaning the resistance to acceleration when a net force is applied. The mass determines the strength of its gravitational attraction to other bodies.

The SI base unit of measurement of mass is the kilogram (kg) and it is not the same as weight. Mass is generally determined by measuring the weight using a spring scale, rather than a balance scale and comparing it to known masses.

An object on the Moon will weigh less than it does on Earth due to the lower gravity but still have the same mass. Weight can be defined as a force, while mass is the property that determines the strength of this force.

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Positive exponent means bigger number

Negative exponent is smaller -  means that its in the denominator.

example:
\(2^{2} = 4\)

\(2^{-2} =\frac{1}{2^2} = \frac{1}{4}\)

Answer:

6626 g

Explanation:

Given that:

Density of water = 1.00 g/ml, volume of water = 42800 ml.

Since density = mass/ volume

mass of water = volume of water * density of water = 42800 ml * 1 g/ml = 42800 g

Initial temperature of water = 22°C and final temperature of water = 45°C.

specific heat capacity for water = 4.184 J/g°C

ΔT water = 45 - 22 = 23°C

For iron:

mass = m,  

specific heat capacity for iron  = 0.444 J/g°C

Initial temperature of iron = 1445°C and final temperature of water = 45°C.

ΔT iron = 45 - 1445 = -1400°C

Quantity of heat (Q) to raised the temperature of a body is given as:

Q = mCΔT

The quantity of heat required to raise the temperature of water is equal to the temperature loss by the iron.

Q water (gain) + Q iron (loss) = 0

Q water = - Q iron

42800 g ×  4.184 J/g°C × 23°C = -m × 0.444 J/g°C × -1400°C

m = 4118729.6/621.6

m = 6626 g

An ionic compound that is neither an acid nor a base is classified as a salt. Salts are formed when an acid reacts with a base, resulting in the neutralization of their respective acidic and basic properties.

In this reaction, the acid donates a proton (H+) to the base, forming water, while the remaining ions from the acid and base combine to form the salt. Salts are composed of positively charged cations and negatively charged anions. The cation is derived from a base, while the anion is derived from an acid. However, the resulting salt does not exhibit the characteristic properties of either an acid or a base. It does not donate or accept protons in solution, making it neutral in nature. Salts have a wide range of applications, including as flavor enhancers, preservatives, and components in chemical reactions and industrial processes. They can also be found naturally in minerals and are essential for various biological processes in living organisms. In summary, an ionic compound that is neither an acid nor a base is classified as a salt. It is formed through the neutralization reaction between an acid and a base and does not exhibit acidic or basic properties in solution.

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The principal quantum number of the electron with a radius of 0.4761 nm is 4.
To find the principal quantum number (n) of an electron with a radius of 0.4761 nm, we can use the formula for the radius of an electron in a hydrogen atom:

r = n² * a₀

where r is the radius, n is the principal quantum number, and a₀ is the Bohr radius (approximately 0.0529 nm).

To solve for n, we can rearrange the formula:

n = sqrt(r / a₀)

Now, plug in the given values:

n = sqrt(0.4761 nm / 0.0529 nm)

n ≈ 3.2

Since the principal quantum number must be an integer, we can round up to the nearest whole number:

n ≈ 4

The principal quantum number of an electron with a radius of 0.4761 nm is approximately 4.

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Non-heme iron is found in some foods that provide all the amino acids humans require for the absorption of iron.

Amino acids are defined as the substances which are considered to be the monomers of proteins.Every amino acid has the same structure  which consists  of a central carbon  bonded to an amino group , carboxyl group and a hydrogen.

Each amino acid also has  an another atom or a group of atoms bonded to the alpha carbon which are also known as the R group or the variable group of the side chain.There are 20 common amino acids which are  present in natural proteins and each amino acid has the same backbone.

The sequence and number of amino acids determines protein's shape,size and also its function. Each amino acid is attached to the other by a covalent bond formed by a dehydration reaction.

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Three antimicrobial compounds produced by the Bacillus sp. strain Csat isolated from pozol were identified by using the high-performance liquid chromatography and the mass spectrometry.

The three compounds were iturin, bacilysin, and chlorotetaine. Production of these compounds by CS93 could account for the medicinal properties

attributed to the pozol.

Antifungal drugs work to treat fungal infections. It can kill the fungus directly or it can prevent the growth and reproduction of the fungus.

Antifungals are available over-the-counter or by prescription and come in a variety of forms, including: creams and lotions.

Thyme, cinnamon, oregano, clove, and mint are all some examples of these kinds of oils.

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Answer:  x=13/3

Explanation:

step 1: multiply both sides by 10: 36x=6x+130

step 2: subtract 6x from both sides 30x=130

step 3: divide both sides by 30: x=13/3

Answer:

Describes its potential to undergo some chemical change or reaction by virtue of its composition

Potassium methoxide, which acts as a nucleophile during the synthesis of biodiesel is prepared by mixing methanol and potassium hydroxide.

Oxide is used as a surfactant and a dehydrating agent while potassium hydroxide and methanol are reacted to create potassium methoxide.

The steps involved in producing potassium methylate with methyl alcohol and potassium hydroxide as the main raw ingredients are :Adding potassium hydroxide and methyl alcohol to the potassium methylate reactor at a predetermined molecular weight ratio. Dried methyl alcohol is added constantly from the reactor's bottom while being stirred and the reaction temperature is controlled.

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Dimethyl maleate and dimethyl fumarate are constitutional isomers. Constitutional isomers, also known as structural isomers, are molecules that have the same molecular formula but different connectivity between their atoms.

In the case of dimethyl maleate and dimethyl fumarate, both molecules have the same molecular formula, C6H8O4, but their atoms are connected in a different way.

Specifically, dimethyl maleate has two methyl groups on the same side of the molecule, while in dimethyl fumarate the two methyl groups are on opposite sides. This difference in connectivity gives rise to different physical and chemical properties for the two molecules, including different melting points, boiling points, and reactivities.

Enantiomers and diastereomers, on the other hand, are types of stereoisomers that have the same connectivity of atoms but differ in their spatial arrangement due to the presence of one or more chiral centers in the molecule. Conformational isomers refer to different conformations of the same molecule due to rotation around single bonds. However, in the case of dimethyl maleate and dimethyl fumarate, there is no chiral center or rotation around a single bond, so they cannot be classified as enantiomers, diastereomers, or conformational isomers.

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Increasing the surface area, stirring or agitating the mixture, raising the solvent's temperature, and employing a solvent with a stronger polarity or one that is more similar to the solid's chemical makeup are all ways to speed up the dissolving process.

There are several methods that can increase the rate of dissolving a solid, including:

Increasing the surface area of the solid by crushing, grinding or pulverizing it into smaller pieces.

- Stirring or agitating the mixture, which helps to distribute the solvent and increase contact between the solvent and the solid.

- Increasing the temperature of the solvent, which increases the kinetic energy of the solvent molecules, making them more likely to collide with and dissolve the solid.

- Using a solvent that has a higher polarity or is more similar in composition to the solid, which can increase the attraction between the solvent and the solid and promote faster dissolving.

Therefore, the methods that would increase the rate of dissolving a solid are increasing surface area, stirring or agitating the mixture, increasing the temperature of the solvent, and using a solvent that has a higher polarity or is more similar in composition to the solid.

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Answer:

Explanation:

[He]2s²2p⁶

If instead of a strip of pure magnesium ribbon, a strip of an aluminum-magnesium alloy is given, the mass of the strip would be higher than expected. This is because the alloy contains both aluminum and magnesium which are less dense than pure magnesium.

The chemical equation for the reaction of pure magnesium with hydrochloric acid is:
\(Mg + 2HCl → MgCl2 + H2\)
The reaction shows that one mole of magnesium reacts with two moles of hydrochloric acid to produce one mole of magnesium chloride and one mole of hydrogen gas. The molar mass of magnesium is 24.31 g/mol.
On the other hand, the chemical equation for the reaction of aluminum-magnesium alloy with hydrochloric acid is:
AlxMg1-x + 2HCl → AlxMg1-xCl2 + H2
The reaction shows that one mole of the alloy reacts with two moles of hydrochloric acid to produce one mole of the alloy chloride and one mole of hydrogen gas. The molar mass of the alloy would depend on the ratio of aluminum to magnesium in the alloy.
Since aluminum has a lower density than magnesium, the overall density of the aluminum-magnesium alloy is lower than that of pure magnesium. Therefore, for the same volume of material, the mass of the aluminum-magnesium alloy strip would be higher than that of the pure magnesium strip. However, the actual mass of the aluminum-magnesium alloy strip would depend on the specific ratio of aluminum to magnesium in the alloy.

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Answer:

Explanation:

The mass of silver that would occupy a volume of 24 cm³ can be calculated using the density formula:

mass = density x volume

At 20 °C, the density of silver is 10.5 g/cm³, so the mass of silver that would occupy a volume of 24 cm³ would be:

mass = 10.5 g/cm³ x 24 cm³ = 252 g

So, the mass of silver that would occupy a volume of 24 cm³ is 252 grams.

Answer:

leave little space between the molecules.

Explanation:

Matter is made up of small particles called molecules. These molecules present in matter are arranged inside its bulk.

In liquids and solids, the molecules are arranged very close together in such a way that there is only a little space between them. This is why liquids and solids are referred to as "condensed phases".

They are quite unlike gases where there is a lot of space between gas molecules.

Answer:

B

Explanation:

so dfhhdjdjjfjfjjdjdjdj

Answer:

A. it's H20

B. mH2O=17g

C. m Al(OH)3= 39g

m AlS3 = 6.15

Based on the given information and the densities provided in the table, the unknown element in the alloy is most likely Beryllium. option(a)

To identify the unknown element in the alloy, we need to compare the density of the alloy with the densities of the elements listed in the table.

The density of the alloy can be calculated using the given information. We know that 10.0 grams of the alloy has a volume of 4.20 cm³. Density is defined as mass divided by volume, so we can calculate the density of the alloy as:

Density = Mass / Volume = 10.0 g / 4.20 cm³ ≈ 2.38 g/cm³

Now, we compare the calculated density of the alloy (2.38 g/cm³) with the densities listed in the table. From the given options, the closest density is that of aluminum, which is 2.70 g/cm³. The alloy's density is lower than the density of aluminum, which means it must contain an element with a lower density than aluminum.

The unknown element in the alloy is most likely Beryllium (option A) with a density of 1.85 g/cm³. The combination of 62% aluminum and 38% beryllium in the alloy would result in a density close to the calculated value of 2.38 g/cm³. option(a)

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No of protons and no of electrons is 82 , no of neutrons is 125.

PEN stands for proton, electron and neutron

An element is represented as ZXA,

where

Z = atomic number which is also equal to no of proton ( written on top of                   element)

A = atomic mass

So lead is represented as ⁸²Pb₂₀₇

                                                  = 207 - 82 = 125

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Answer:

225 mL of water must be added.

Explanation:

First we calculate how many HCl moles are there in 516 mL of a 0.191 M solution:

Now we use that number of moles (that remain constant during the dilution process) to calculate the final volume of the 0.133 M solution:

We can calculate the volume of water required from the volume difference:

The equation of the formation of the compound is; \(K(s) + Mn(s) + 2O_{2}(g) ----- > KMnO_{4} (s)\)

We know that the standard state has to do with the basic state that a compound can be found. The enthalpy of the formation of any substance that is found in the standard state is zero.

In this case, we are looking at the the standard formation reaction of solid potassium permanganate. The equation would have to contain solid sodium as well as solid manganese and oxygen as these are all standard states.

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