Phosphorus is atomic number 15. when it comes to bonding with other atoms, what is phosphorus most likely to do?

in order for the wooden to waft in fuel, it needs to have a density much less than the density of fuel and so as for it to sink in ethanol, it must have a greater density than the density of ethanol however ethanol is denser than gasoline therefore if it sinks in ethanol it has to also sink in fuel.

If the wood pressure is much less than the object's weight, the object will sink. So, the piece of timber floats in water whilst located in ethanol it sinks. ethanol is lighter than water so it needs to drift to the floor of the water but this isn't always the actual case. The ethanol in water neither sinks nor floats, alternatively it mixes thoroughly to form a homogenous solution. The purpose of this blending of two solutions is hydrogen bonding between ethanol and water.

Density is a measure of how heavy something is compared to its size. If an item is greater dense than water it will sink while placed in water, and if it's miles much less dense than water it'll float. Density is a functioning asset of a substance and doesn't depend on the amount of substance.

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Thermal energy transfers occur in three ways: through conduction, convection, and radiation. When thermal energy is transferred between neighboring molecules that are in contact with one another, this is called conduction.

The proof of a 750-ml bottle of rum is 74.

In the US, alcohol proof is equal to twice the percent of alcohol (ethanol) by volume, so for example, 180 proof alcohol is a 90% ethanol solution by volume.

d = 0.785 g/ml; density of the solution

n(ethanol) = 4.73 mol; amount of the alcohol

m(ethanol) = 4.73 mol × 46 g/mol

m(ethanol) = 217.58 g; mass of ethanol

V(ethanol) = 217.58 g ÷ 0.785 g/mol

V(ethanol) = 277.17 ml; volume of ethanol

%v/v = 277.17 ml ÷ 750 ml × 100%

%v/v = 37%; the percent of alcohol (ethanol) by volume

the proof = 37 × 2 = 74

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To make 1 L of citrate buffer (pH 3.0 to 6.2), follow these instructions

A. 800 mL of distilled water should be ready in a convenient container.

B. Add the solution with 25.703 g of sodium citrate dihydrate.

C. Add 2.421 g of citric acid in the mixture.

D. Use HCl or NaOH to adjust the solution's pH to the appropriate level.

E. Add distilled water until there is 1 L in the container.

What is a buffer?

Buffer solution refers to a solution whose pH is not significantly changed by the addition of modest amounts of either an acid or a basic. The solution of reserve acidity or alkalinity that resists pH change upon the addition of a modest amount of acid or alkali is known as a buffer.

Use these directions to create 1 L of citrate buffer (pH 3.0 to 6.2).

A handy container with 800 mL of distilled water should be prepared.

B. Include the sodium citrate dihydrate solution, which contains 25.703 g.

C. Include the mixture with 2.421 g of citric acid.

D. To bring the pH of the solution to the proper range, use HCl or NaOH.

E. Fill the container with distilled water until it measures 1 L.

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These are  stereoisomers so option b.

constitutional isomers are structural isomers who have specific type of isomers that share the same molecular formula but different bonding structure and patterns. To identify a constitutional isomer the easy way is to count the number of carbon and the degree.

Isomers that have same composition but have different orientation in space is known as stereoisomers. it is of two types diastereomers and enantiomers.

the non-superimposable mirror images are formed by enantiomers.

diastereomers are not mirror images but they are non-superimposable

Here in this figure the given are stereoisomers and it is diastereomer.

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this question was incomplete and there was no figure. i gave attached a fig accordingly answered the question.

Answer:

P=9

Explanation:

Formula: P = M/V
First, we need to find the volume. This can be done by: 5 x 3 x 2 which will give us 30

Now we can plug it in
P= 270/30

P=9!  

Answer:

32.06 amu

Explanation:

(31.972 amu  x 95%) + (32.971 amu x 0.76%) + (33.967 amu x 4.22%) =

(31.972 x .95) + (32.971 x .0076) + (33.967 x .0422) =

30.3734 + .2505796 + 1.4334074 = 32.057387 = 32.06 amu

The unknown element is Sulfur.

Explanation:

distance of the star ....

Answer:

number of electrons in the star

98.684 ml of 95% ethanol solution and 26.316 ml of water are required to prepare 125 ml of 75% ethanol solution.

What is a solution?

A solution is a uniform mixture of two or more components with particles smaller than one nanometer.

There are many different types of solutions, such as soda water, salt-and-sugar solutions, and others. In a solution, each component appears as a separate phase. The distribution of the particles is uniform, or there is particle homogeneity. This explains why the full contents of a soft drink bottle have the same flavour.

Let x ml of the 95% ethanol solution be the volume.

According to the law of conservation of mass, the amount of ethanol in x millilitres of 95% ethanol solution is equivalent to the amount in 125 millilitres of 75% ethanol solution.

⟹M1 V1 =M 2 V 2

In this instance: M 1 = 0.95, V 1 = x ml, M 2 = 0.75, V 2 = 125 ml, and V 1 = 98.684 ml.

But [V 2] = 125 ml for the ultimate volume.

Therefore, 98.684 ml of 95% ethanol solution and 26.316 ml of water are required to prepare 125 ml of 75% ethanol solution.

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Answer: All matter has physical and chemical properties. Physical properties are characteristics that scientists can measure without changing the composition of the sample under study, such as mass, color, and volume (the amount of space occupied by a sample). Chemical properties describe the characteristic ability of a substance to react to form new substances; they include its flammability and susceptibility to corrosion. All samples of a pure substance have the same chemical and physical properties. For example, pure copper is always a reddish-brown solid (a physical property) and always dissolves in dilute nitric acid to produce a blue solution and a brown gas (a chemical property).

Physical properties can be extensive or intensive. Extensive properties vary with the amount of the substance and include mass, weight, and volume. Intensive properties, in contrast, do not depend on the amount of the substance; they include color, melting point, boiling point, electrical conductivity, and physical state at a given temperature. For example, elemental sulfur is a yellow crystalline solid that does not conduct electricity and has a melting point of 115.2 °C, no matter what amount is examined (Figure 1.3.1). Scientists commonly measure intensive properties to determine a substance’s identity, whereas extensive properties convey information about the amount of the substance in a sample.

All matter has physical and chemical properties. Physical properties are characteristics that scientists can measure without changing the composition of the sample under study, such as mass, color, and volume (the amount of space occupied by a sample). Chemical properties describe the characteristic ability of a substance to react to form new substances; they include its flammability and susceptibility to corrosion. All samples of a pure substance have the same chemical and physical properties. For example, pure copper is always a reddish-brown solid (a physical property) and always dissolves in dilute nitric acid to produce a blue solution and a brown gas (a chemical property).

Physical properties can be extensive or intensive. Extensive properties vary with the amount of the substance and include mass, weight, and volume. Intensive properties, in contrast, do not depend on the amount of the substance; they include color, melting point, boiling point, electrical conductivity, and physical state at a given temperature. For example, elemental sulfur is a yellow crystalline solid that does not conduct electricity and has a melting point of 115.2 °C, no matter what amount is examined (Figure 1.3.1). Scientists commonly measure intensive properties to determine a substance’s identity, whereas extensive properties convey information about the amount of the substance in a sample.

Explanation: Read the article and simplify it in your own words.

Answer:

Explanation:

bdbdh

Three quantities/variables are needed in order to calculate the amount of heat given off or absorbed during a chemical reaction are the substance, the process and the amount of substance.

When a substance in the same state absorbs heat, its temperature increases.

The amount of heat absorbed is proportional to the amount of the substance and the increase in temperature.

The amount of heat needed to raise the temperature of one gram of substance by 1°C is called the specific heat of that substance.

The specific heat of water is  4.18 J/g°C.

The amount of heat, q, absorbed by a given mass (m) of substance with specific heat, s, when its temperature increases by ΔT is given by the following formula: q = m × s × ΔT.

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Answer:

Metallic character of the element

Explanation:

The second law of thermodynamics states that energy conversions result in energy lost in a nonuseful form like heat.

The second law of thermodynamics states that although heat can do work, it is not always possible to convert heat completely into other types of energy, because in an energy conversion process an amount of energy is useful and other one is not useful due to  the fact that it cannot be transformed.

In general terms, the second law of thermodynamics speaks of the efficiency in the processes of energy conversion and entropy in systems.

Entropy is defined as the degree or amount of disorder or randomness of a system.  

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Answer:

it would represent sodium

A0 is the initial activity, AT is the activity at time T, and H is the half-life, expressed in units of T, where AT = A0 e(-T/H).

What we know when we replace it produces...

0.71 = (1) e(-T/5730)

Calculate T: loge(0.71) = -T/5730

T = -loge(0.71) (5730)

For all aboriginal charcoal,

T = 1962 (conservatively rounded to T = 2000).

0.28 = (1) e(-T/5730)

Find T by solving for loge(0.28) = -T/5730.

T = -loge(0.28) (5730)

For a mayan headdress,

T = 7294 (conservatively rounded, T = 7000) 0.89 = (1) e(-T/5730)

Calculate T by using loge(0.89) = -T/5730.

T = -loge(0.89) (5730)

T = 667 for neanderthals

(roughly rounded to T = 700). 0.05 = (1) e(-T/5730)

Find T by solving loge(0.05) = -T/5730.

T = -loge(0.05) (5730)

(Conservatively rounded, T = 17000; T = 17165)

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Two hydrogen and one oxygen atoms combine to form two hydrogen molecules, or 2H₂O.

The process of evaporation never stops. Water bodies continuously lose water, which builds up in the atmosphere as water vapors.

Later, these vapors precipitate back into water and reach the earth as rain or snow. Hydrogen bonds form between nearby hydrogen and oxygen atoms of adjacent water molecules in the case of water. A bond called a hydrogen bond is produced by the attraction between individual water molecules. A structure made up of two or more atoms that are chemically connected to one another is called a molecule. A compound or elemental molecule could be the structure. An elemental molecule, like ozone (O₃) or chlorine, only contains one type of atom (Cl₂). One or more distinct components combine to form a composite molecule.

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Its asked price in$ on the previous day is the bid price is the sum a dealer offers to buy a bond at.

A bid price is the sum that a buyer is prepared to pay for a contract, commodity, asset, security, or other item, among other things. It is called a "bid" in many marketplaces and locations.

The "ask" price, which is the amount that sellers are willing to accept an offer, is often reduced by a bid. The bid-ask spread is the difference between the two prices.

Market makers may submit bids on securities on an ongoing basis or in response to a seller's request for a price at which they can sell. Unsolicited bids are those made by a bidder when a seller isn't actively trying to sell, which occasionally happens.

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By ideal gas approximation, the molar mass is 9.84 x 10¯³.

We need to know about the ideal gas theory to solve this problem. The ideal gas is assumed that there is no interaction between particles in a gas. It can be determined by the equation

P . V = n . R . T

where P is pressure, V is volume, n is the number of moles gas, R is the ideal gas constant (8.31 J/mol.K) and T is temperature.

From the question above, we know that

ρ = 0.862 g/l

T = 298 K

P = 2.14 atm = 216835.5 Pa

Find the molarity of gas

P . V = n . R . T

P / (R. T) = (n/V)

M = P / (R. T)

M = 216835.5  / (8.31 . 298)

M = 87.56 M

Find the molar mass

M = (gr/Mr) / lt

M = (gr/lt) x 1/Mr

M =  ρ / Mr

87.56 = 0.862 / Mr

Mr = 9.84 x 10¯³

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All but one of the halides will produce a precipitate with Silver.

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34g Al(HCO3)3 gives 34/210 moles = 0.1619 moles

0.1619 moles Al(HCO3)3 has 3*0.1619 = 0.4857 moles  HCO3-

0.1619 moles Al(HCO3)3 has 0.1619 moles aluminium ions

0.1619 moles Al(HCO3)3 has 9*0.1619 moles oxygen = 1.4571 moles oxygen

what are moles?

In chemistry, a mole, sometimes spelled mol, is a common scientific measurement unit for significant amounts of very small objects like atoms, molecules, or other predetermined particles. The mole designates 6.02214076 10 23 units, which is a very huge number.

Aluminium bicarbonate has a formula of Al(HCO3)3 and it molecular weight is 210g.

1 mole HCO3- weighs 61 g

1 mole Al(HCO3)3 has 3 moles of  HCO3-

210 g Al(HCO3)3  gives 1 mole

Thus, 34g Al(HCO3)3 gives 34/210 moles = 0.1619 moles

1 mole HCO3- weighs 61 g

1 mole Al(HCO3)3 has 3 moles of  HCO3-

0.1619 moles Al(HCO3)3 has 3*0.1619 = 0.4857 moles  HCO3-

0.1619 moles Al(HCO3)3 has 0.1619 moles aluminium ions

0.1619 moles Al(HCO3)3 has 9*0.1619 moles oxygen = 1.4571 moles oxygen

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AgCN will precipitate first.

Precipitation in chemistry is the formation of an insoluble chemical by the reaction of two salts or through temperature changes that affect the solubility of the compound. Additionally, the solid that results from a precipitation reaction is referred to as "precipitate."

Precipitation can be a sign that a chemical reaction has taken place, but it can also happen when the concentration of a solute is higher than its solubility. The process of small, insoluble particles aggregating with one another or forming an interface with a surface, such as a container wall or a seed crystal, is the precursor to precipitation and is known as nucleation.

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The presence or absence of double bonds between the carbon atom and other atoms determines whether a carbon atom's covalent bonds to other atoms are in a tetrahedral configuration or a planar configuration.

The condition of electronic configuration is the one that determines the kinds as well as the number of bonds that a carbon atom will form with other atoms. When two carbon atoms are bonded by a double bond, the particular atom which is joined to the carbon exists in the same plane as the place of carbons. The organic molecules called hydrocarbons consists of only hydrogen and carbon.

Because reason of having four electrons by carbon in its valence shell, it is capable of forming four covalent bonds with that of other atoms. Whenever carbon forms four bonds with other atoms, the resulting molecule thus formed has a shape of tetrahedral. Generally, there are three basic types of covalent bonds which include single bonds, double bonds as well as triple bonds.

A carbon atom's covalent bonds to other atoms are in a planar configuration with the presence or absence of double bonds.

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Answer: 2 Just to clarify

Explanation:

b.selling print copies of a book after purchasing the digital file

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Answer:

Option. A  Producing and selling a drug that another company invented

Explanation:

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Answer:

Point A, Point B, and Point C

Explanation:

Collinear points means that they share the same line. Points A, B, and C all share the line m.

Aperture controls the amount of light that passes though the lens of the camera.

The parameter known as aperture determines how much the lens's diaphragm opens to let light enter the camera. In other words, it regulates the amount of light that reaches the sensor or film as well as the size of the opening in the diaphragm. Different lenses have different minimum and maximum values for the aperture.

The ISO, the Aperture, and the Shutter Speed are the three different ways you can regulate how much light your camera captures. The ISO can be compared to your film stock. If you had the good fortune to shoot film, you would be aware that a lower ISO produces clearer images and requires less light.

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Answer:

I hope this helps.

Explanation: