an+unknown+compound+comprised+of+osmium+and+chlorine+is+40.11%+osmium+by+mass.+given+that+you+have+40.11+g+of+osmium,+what+quantity+in+moles+of+osmium+are+present+in+100.0+g+of+the+compound?

A matter is made up of Tiny particles which contain mass, and are too small to be seen. Option B is the correct answer.

A matter consists of atoms and consist of protons, neutrons, and electrons. Both the protons and neutrons are placed in the nucleus, which is the center of an atom.

Matter can occupy space and has mass, and matter consists of many phases and it can take different forms. The matter is generally in the form of a solid, liquid, or gas.

The matter is also made up of tiny particles called atoms!

There are three main states of matter They are, solid, liquid, and gas. Water is one of the substances that exist in all three states.

1. SOLID:

Examples of solids are: metals, wood

2. LIQUID:

Examples of liquids: are water and oil.

3. GAS:

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Best describes the ball's direction of motion is 50 m and the 'motion of an object is described by its position, speed, direction, and acceleration'

Motion means change with time of the position or orientation of a body

Here given data is barry knocks a baseball into the air with his bat and it is traveling at 25 m/s to east and parallel to ground then the ball is 50 meters to the east of barry so, when first time barry hit the ball, ball goes to parallel of the ground and after two second the ball is at east means 50metre to the barry here the concept is motion of an object is described by its position, speed, direction, and acceleration here the acceleration of the body does not determine its direction of motion the direction of motion is determined by the velocity of the body so 50 m is best describes the ball's direction of motion

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Answer:

B EAST

Explanation:

The motion of an object can be described by its speed, position, and direction of motion.

Two seconds after Barry hits the ball, its speed is 25 m/s, and its position is 50 meters to the east of Barry. This means that the ball's direction of motion is to the east.

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In an aqueous solution at 25°C, when [OH⁻] > [H₃O⁺], the true statement is  

1 x 10⁻¹⁰. Option D is correct.

In an aqueous solution, the concentration of hydroxide ions ([OH⁻]) and hydronium ions ([H₃O⁺]) are related through the concept of pH. At 25°C, a neutral solution has an equal concentration of hydroxide and hydronium ions, which means [OH⁻] = [H₃O⁺] = 1 x 10⁻⁷.

However, in the given scenario where [OH⁻] > [H₃O⁺], it indicates that the solution is basic. This means the concentration of hydroxide ions is greater than the concentration of hydronium ions.

Among the options provided, the only value that represents a concentration of hydronium ions smaller than 1 x 10⁻⁷ is D) 1 x 10⁻¹⁰. Therefore, the correct option is D.

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The correct resonance structures for a protonated carbonyl compound include a carbon double bonded to a protonated oxygen with a positive charge and a lone pair, and a carbon double bonded to a protonated R group and single bonded to two hydroxy groups.

When a carbonyl group is protonated, it forms a structure that can be stabilized through several resonance structures. These resonance structures involve the movement of electrons, resulting in different possible arrangements of atoms in the molecule. One of these resonance structures involves a carbon double bonded to a protonated oxygen with a positive charge and a lone pair, with the carbon also bonded to an R group and a hydroxy group.

Another resonance structure involves a carbon double bonded to a protonated R group and single bonded to two hydroxy groups. This structure involves the movement of electrons from the carbonyl group to the R group, resulting in the formation of a carbocation bonded to two hydroxy groups.

The other two options, a carbocation bonded to R and two hydroxy groups, and a carbon double bonded to a protonated oxygen with a positive charge and a lone pair, with the carbon also bonded to an R group and a hydroxy group, are actually valid resonance structures of the protonated carbonyl compound. Therefore, the correct answer is that all of the given structures are resonance structures of the compound formed upon protonation of the carbonyl group.

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The number of protons in the element is 33.

From the information provided we can find the relative atomic mass of the element as follows;

RAM = (0.241 × 75.23) + (0.487  × 74.61) + (0.272 × 75.20)

RAM = 18.13 + 36.34 + 20.45

RAM = 74.92  amu

The element with relative atomic mass of 74.92 amu is Arsenic.

The atomic  number of arsenic is 33. This is the number of protons in its nucleus. Therefore, the number of protons in the element is 33.

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Structures that can be drawn to represent the covalent bonding in a molecule that has more than one position in the molecule for a multiple bond are known as Position Isomers.

Position isomers are isomers with same chemical formula but the functional group is attached to different position of carbon in different structures.

Example-

Hex1-ene , Hex2-ene, Hex3-ene are position isomers with double bond on first, second and third carbon respectively as shown below-

\(CH_2= CH-CH_2-CH_2-CH_2-CH_3\\CH_3-CH=CH-CH_2-CH_2-CH_3\\CH_3-CH_2-CH=CH-CH_2-CH_3\)

Other examples are pent1-yne and pent2-yne where triple bond is on first and second carbon respectively.

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Answer:

erm-- how do i answer this question xd

Explanation:

Gaining of an electron is most exothermic for Fluorine.

N2(g)+O2(g)→2NO(g) is an endothermic response because heat is absorbed on this reaction. all of the other reactions are exothermic as the warmth is launched for the duration of the method.

Any manner that absorbs warmness from its environment is an endothermic system. consequently, all endothermic reactions are endothermic strategies. An endothermic reaction is any chemical response that absorbs warmth from its surroundings. The absorbed electricity provides the activation electricity for the reaction to arise.

Fluorine is important for the manufacturing of nuclear material for nuclear power vegetation and for the insulation of electrical towers. Hydrogen fluoride, a compound of fluorine, is used to etch glass. Fluorine, like Teflon, is used to make plastics and is also essential in dental fitness.

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Answer:

becose of the dark in the atmosphere it covers the sun

Explanation:

il explain in comment if you brainly me

The chemical formula of this complex would be [Rh(NH3)5I].

To write the chemical formula for the complex formed by a rhodium atom in the oxidation state, one iodide anion, and five ammonia molecules, follow these steps:
1. Determine the oxidation state of rhodium (Rh). Since it's not provided, we will represent it with "x."
2. Write the chemical symbols and charges for each component of the complex: Rh (x), iodide (I⁻), and ammonia (NH₃).
3. Combine the components to form the complex. Rhodium will be in the center, and the ligands (iodide and ammonia molecules) will surround it. Remember that there's one iodide anion and five ammonia molecules.
The chemical formula for this complex is [Rh(NH₃)₅I]^(x-1), where "x" is the oxidation state of the rhodium atom.

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Answer:

A. L•atm/mol K

Explanation:

The ideal gas law equation is given as follows:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant

T = temperature (K)

As rightly stated in this question, R is the ideal gas constant, which can be different depending on the unit of the other components.

At STP;

V = 22.4L

P = 1 atm

T = 273 K

n = 1 mole

Hence, using PV = nRT

R = PV/nT

R = 1 × 22.4/1 × 273

R = 22.4/273

R = 0.08205

Approximately, R = 0.0821

With the units of P as atm, V as L, n as mol and T as K; R will be 0.0821 L•atm/mol K

That 1500 kJ of energy were transferred to water at 20.0°C. Heat capacity (c) for liquid water is 4.18 J/g C​. mass of water could be brought to the boiling point is 4485 g.

given that :

heat energy = 1500 kJ

heat capacity , c = 4.18 J/g °C

initial temperature = 20.0°C

boiling of water ,final temperature = 100 °C

Q = mcΔT

m = Q / (cΔT)

m = 1500 / ( 4.18 × ( 100 °C - 20 °C )

m = 1500 / 334.4

m = 4.485 kg = 4485 g

Thus, That 1500 kJ of energy were transferred to water at 20.0°C. Heat capacity (c) for liquid water is 4.18 J/g C. ​mass of water could be brought to the boiling point is 4485 g.

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γ-ray photons with a wavelength of 2.45x10⁻⁵ nm the energy numerically in kilojoules per mole is 8.118 kJ

Photon is the tiny particles and bundles of electromagnetic radiation

Here given data is

y-ray wavelength = 2.45x10⁻⁵ nm

We have to calculate energy = ?

E = hf

E= Energy of the photon

h= Plank's constant = 6.63×10⁻³⁴

f= frequency of the radiation

But f = c/λ

c= speed of light

λ= wavelength

Hence

E = hc/λ

E = 6.63×10⁻³⁴×3×10⁸/2.45x10⁻⁵

E = 8.118 kJ

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Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Therefore, by transferring electron or sharing electrons,  particles combine to form the variety of matter.

Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.

So as we saw that matter has some mass so mass can be measured in gram only. Mass can also be represented as number of molecules. We also saw that matter occupy some volume and that volume is measured only in liter. By transferring electron or sharing electrons,  particles combine to form the variety of matter.

Therefore, by transferring electron or sharing electrons,  particles combine to form the variety of matter.

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The significance of carbon bonding in biological molecules because it enables the synthesis of a variety of chemical compounds that are necessary for the survival and proper functioning of all living things.

Because it is the foundation for the structural and functional variety of biological molecules, carbon bonding plays a crucial role in these molecules. Carbon is a remarkable element that may be used to make a diverse range of chemical compounds because it can form stable covalent bonds with so many different elements, including other carbon atoms, hydrogen, oxygen, nitrogen, sulphur, and phosphorus. Carbon-based compounds make up the majority of biological molecules, including proteins, lipids, nucleic acids, and carbohydrates. These molecules are important for all living organisms to function and live.

Carbohydrates like sugars and starches are the primary energy source for all living things. Their structure is composed of covalently bonded simple carbohydrates like glucose and fructose. Fats and oils are lipids that are essential for the development of cell membranes as well as energy storage and insulation. Covalent bonds hold the fatty acids that make up their structure together. Nucleic acids like DNA and RNA make up the genetic material found in all living organisms. They are composed of nucleotides, which are connected by covalent bonds and are in charge of storing and transmitting genetic information. Proteins are essential for structure, regulation, and catalytic reactions in living things. The amino acids that makeup them are joined together by peptide bonds in their construction. 

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Answer:

11.11%

Explanation:

The concentration of the solution can be calculated by dividing the mass of the solute (common salt) by the mass of the solvent (water) and then multiplying by 100.

The concentration of the solution is:

(50g / 450g) x 100 = 11.11%.

The substrate haloalkane is a primary ( unhindered ) haloalkane. The Nucleophile is a weakly basic nucleophile, and the solvent is protic.

The term "haloalkanes" refers to alkanes with one or more halogen substituents. Although the distinction is not always acknowledged, they are a subset of the larger class of halocarbons. Commercial application of haloalkanes is widespread.

Polar liquid molecules with dissociable hydrogen atoms are known as aprotic solvents. Polar liquid substances with no dissociable hydrogen atoms are known as aprotic solvents. The creation of hydrogen bonds is possible in aprotic liquids. In aprotic solvents, hydrogen bonds cannot form.

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Answer:

0.694 cents per second

Explanation:

25x100=2500 cents per hour, 2500/60 = 41.67 per minute and 41.67/60=0.694 cents per second

1) Write the formula

2) The subscripts show us the number of each atom in the formula. In this case, we also have to make sure to count the parenthesis subscript.

There are

3 Cu

2 P

8 O

The mass of the iodine that can be obtained from the reaction is 79.5 Kg.

We know that we have to look at the stoichiometry of the reaction so as to be able to solve the question well. We know that to look at the stoichiometry, it is important that we should able to consider the mass - mass relationship between the compounds.

We have the reaction equation written out in the form; \(2KI --- > 2K + I_{2}\). We have been told in the question as we can see above that a sample of potassium iodide are decomposed into the constituent elements. and the sample produced 24.4 kg of potassium.

Number of moles of the potassium produced = the sample produced 24.4 * 10^3 g/39 g/mol

= 625.6 moles

If the reaction produces 2 moles of potassium and 1 mole of iodine then the number of moles of iodine produced = 625.6 moles/2

= 312.8 moles

Mass of the iodine produced = 312.8 moles * 254 g/mol

= 79.5 Kg

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Appropriate benefit of dietary fiber intake to its associated disease.- c. Decreases intestinal transit time and exposure to potential toxins

Cardiovascular diseases (CVDs) are the most common cause of death worldwide, claiming the lives of an estimated 17.9 million persons each year. CVDs are a group of heart and blood disorders that include coronary artery disease, vascular disease, rheumatic fever, and others. Coronary heart disease could be cured, but treatment can help manage the symptoms and lower the risk of conditions such as heart attacks. Treatment may include changes in lifestyle, such as physical activity and quitting smoking. The most common symptom of heart disease is heart disease (CHD), which kills approximately 382,820 people every year. Every year, approximately 805,000 Americans suffer a heart attack.

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Answer:

1, 3, 2

Explanation:

1 x N2 = N2

3 x H2 = H6

2 x NH3 = N2H6

which is balanced, I believe.

Answer:

Water molecules pull the sodium and chloride ions apart

Explanation:

The volume of the gas at 18.00 ∘C and 0.992 atm is 4.86 L.

To solve this problem, we will use the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

First, we need to convert the initial temperature to Kelvin by adding 273.15. Therefore, the initial temperature is 287.35 K.

Next, we can calculate the number of moles of gas using the given information. We can rearrange the ideal gas law to solve for n: n = (PV)/(RT). Plugging in the values, we get:

n = (1.50 atm)(3.55 L) / [(0.08206 L·atm/mol·K) (287.35 K)] = 0.194 mol

Now we can use the ideal gas law again to find the final volume. We can rearrange the ideal gas law to solve for V:

V = (nRT)/P

First, we need to convert the final temperature to Kelvin by adding 273.15. Therefore, the final temperature is 291.15 K.

Plugging in the values, we get:

V = (0.194 mol)(0.08206 L·atm/mol·K)(291.15 K) / 0.992 atm = 4.86 L

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The 100.9 g of the Dicarbon trihydrogen tribromide is combusted with the 594.1 g of the oxygen gas. The grams of the carbon dioxide is 33 g, the dihydrogen monoxide is 8.5 g and bromide is 90.6 g.

The chemical equation is :

4C₂H₃Br₃  +  11O₂  ---->  8CO₂  +  6H₂O  +  6Br₂

The mass of the C₂H₃Br₃ = 100.9 g

The mass of the O₂  = 594.1 g

The moles of C₂H₃Br₃ = mass / molar mass

The moles of C₂H₃Br₃ = 100.9 / 266.75

The moles of C₂H₃Br₃ = 0.378 mol

The moles of O₂ = mass / molar mass

The moles of O₂ = 594.1 / 32

The moles of O₂ = 18.56 mol

The C₂H₃Br₃ is the limiting reactant.

The moles of CO₂ = (8/4) 0.378

The moles of CO₂ = 0.75 mol

The mass of CO₂ = 0.75 × 44

The mass of CO₂ = 33 g

The moles of H₂O = (6/4)0.378

The moles of H₂O = 0.567 mol

The mass of H₂O = 0.567 × 18

The mass of H₂O = 8.5 g

The mass of bromide = 0.567 × 159.8

The mass of bromide = 90.6 g

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No, soap isn't necessary to remove salt from hands.

Soap is an amphipathic substance, that is, it has a polar part and a non-polar part.

In view of this, this substance is very necessary for cleaning hands when they are dirty with something nonpolar, such as oil, as it can bind to the dirt molecules and leave in the water.

In the case of salt, as it is not a non-polar substance, just water is enough to clean salt from your hands.

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The reaction between a ketone and an amine is known as reductive amination. It involves the formation of an imine intermediate followed by reduction to yield the final product, which is a substituted amine.

Formation of the imine intermediate:

The lone pair of electrons on the nitrogen of the amine attacks the carbonyl carbon of the ketone.

The pi bond between the carbonyl carbon and the oxygen reforms as a double bond between the carbon and the nitrogen.

The oxygen gains a negative charge, which can be delocalized onto the adjacent carbon.

Reduction of the imine intermediate:

The imine intermediate is reduced by a reducing agent, such as sodium borohydride (NaBH4) or lithium aluminum hydride (LiAlH4).

The reducing agent donates hydride ions (H-) to the carbon-nitrogen double bond.

The pi bond between the carbon and nitrogen is broken, and the nitrogen gains a hydrogen atom.

The final product is a substituted amine, where the carbonyl oxygen of the ketone is replaced by the nitrogen atom of the amine.

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When a ketone and an amine react, they can form an imine or an enamine depending on the reaction conditions. The first step of the mechanism involves the nucleophilic attack of the nitrogen atom in the amine on the carbonyl carbon in the ketone

For example, let's consider the reaction between acetone and aniline. The first step of the mechanism involves the nucleophilic attack of the lone pair of electrons on the nitrogen atom in aniline on the carbonyl carbon in acetone. This results in the formation of a tetrahedral intermediate, which is then stabilized by proton transfer from the nitrogen atom to the oxygen atom. The resulting species is an imine, which is the final organic product.
The mechanism can be represented using curved arrows to show the movement of electrons. The nucleophilic attack of the nitrogen atom on the carbonyl carbon is shown using a curved arrow starting from the lone pair of electrons on the nitrogen atom towards the carbonyl carbon. The subsequent proton transfer is shown using a curved arrow starting from the nitrogen atom towards the oxygen atom.
Another possible reaction involves the formation of an enamine, which is an imine in which the nitrogen atom is also part of a double bond. This can occur when a secondary or tertiary amine is used as the nucleophile. The mechanism is similar to that of imine formation, but the tetrahedral intermediate undergoes a rearrangement to form the enamine.
In conclusion, the reaction between a ketone and an amine can result in the formation of an imine or an enamine depending on the reaction conditions. The mechanism involves the nucleophilic attack of the nitrogen atom on the carbonyl carbon, followed by proton transfer and possible rearrangement. The resulting species can be either an imine or an enamine, which are important intermediates in organic synthesis.

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Answer:

q_metal = -12000 J = -12 KJ

Here, the negative sign indicates that the energy is lost by the metal piece.

Explanation:

The magnitude of energy change of the metal X can be given by the following formula:

\(q_{metal} = mC\Delta T\)

where,

m = mass of metal = 100 g

C = Specific Heat Capacity of metal X = 0.24 J/g.°C

ΔT = Change in Temperature of Metal Piece = 0° C - 500°C = -500°C

Therefore, using these values in the equation, we get:

\(q_{metal} = (100\ g)(0.24\ J/g^oC)(-500^oC)\\\)

q_metal = -12000 J = -12 KJ

Here, the negative sign indicates that the energy is lost by the metal piece.

Answer:

the friction?? or the movement

Explanation:

sense the salt is so light its easy to move