How do I write the following :


One atom of Nitrogen
Five atoms of Nitrogen
One molecule of Nitrogen
Five molecules of Nitrogen

One molecule of Sulfur
One atom of Sulfur
Eight molecules of Sulfur

Answer:

D. C6H12+9O2 -> 6CO2+6H2O+heat

Explanation:

got it right on ap ex

The combustion reaction is the reaction between reactants and oxygen. The balanced combustion reaction for cyclohexane is, C₆H₁₂ + 9O₂ → 6CO₂ + 6H₂O + heat. Thus, option D is correct.

A type of reaction that includes the release of energy and heat when the oxygen reacts chemically with the reactant. The presence of oxygen as one of the reactants is a characteristic property of the combustion reaction.

As a result of the reaction carbon dioxide and water is produced along with heat in the reaction. The balanced combustion reaction of cyclohexane (C₆H₁₂) is given as,

C₆H₁₂ + 9O₂ → 6CO₂ + 6H₂O + heat

Here, the number of carbon is six on both sides, twelve hydrogen on both sides, and eighteen oxygen on the left and right sides of the reaction.

Therefore, option D. C₆H₁₂ + 9O₂ → 6CO₂ + 6H₂O + heat is the balanced combustion reaction.

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The amount of heat required to raise the temperature of 125.0 g of aluminum by 12°C is 1611 joules.

Temperature = 12°C

Mass = 125.0 g

To estimate the amount of heat required, we need to use the formula:

Q = m * c * ΔT

Q = the amount of heat in joules

m = the mass of the substance in kilograms

c = the specific heat capacity of the substance

ΔT = the change in temperature in degrees

The specific heat capacity of aluminum = 0.897 J/g°C.

Q = 125.0 g * 0.897 J/g°C * 12°C

Q = 1611 J

Therefore, we can conclude that the amount of heat required is 1611 J.

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Answer: 2 AgNO3(aq) + NiCl2(aq) ⇒ 2 AgCl(s) + Ni(NO3)2 (aq)

Explanation:

Answer:

An ion is a charged atom or molecule.  Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions. Positive ions are called cations and negatively charged ions are called anions.

Answer: Scientific Theory is a is a well-substantiated explanation  of something you have repeatedly confirmed through observation and experiment.  

Answer: c.

Explanation: Because it will increase temperature  on thermometer y will decease.

We would expect a group of 86 aliens to have approximately 458 thumbs. If for every 3 aliens there are 8 hands, then we can find the total number of hands by dividing the number of aliens by 3 and multiplying by 8:

86 aliens / 3 aliens per group * 8 hands per group = 229.33 hands

However, since we are interested in the number of thumbs, we need to multiply the number of hands by 2 (since there are 2 thumbs per hand):

229.33 hands * 2 thumbs per hand = 458.67 thumbs

Since aliens are unlikely to have a fraction of a thumb, we should round down to the nearest whole number.

Therefore, we would expect a group of 86 aliens to have approximately 458 thumbs.

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Answer:

C12H24

Explanation:

The molar mass of the CH2 unit is 14 g/mole.  The final molecule has multiples of CH2 so that it's molar mass is 168 g/mole.

(168 g/mole molecule)/(14 g/mole Unit) = 12 Units

12 CH2 units would make the molecualr formula:  C12H24

This is more than one structure that has this formula:  Cyclododecane and 1-Dodecene.

Answer:

????? questions there no question

Answer:

what

Explanation:

The hydrogen gas has the highest partial pressure, which is greater than nitrogen and oxygen gas because hydrogen gas has the smallest molar mass among the three.

The partial pressure of a gas is the pressure that the gas will exert if it alone occupies the same space as the mixture of gases.

Dalton's law of partial pressures states that the total pressure of a gas mixture is equal to the sum of the partial pressures of each component gas.

This means that the pressure of each gas in the mixture contributes to the total pressure.

According to Graham's law of effusion and diffusion, the rate of effusion or diffusion of a gas is inversely proportional to the square root of its molar mass.

As a result, since hydrogen gas has the smallest molar mass, it will travel at the highest rate and collide with the container walls more frequently, resulting in a higher partial pressure.

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A protein consists of one or more chains of amino acids (called polypeptides) whose sequence is encoded in a gene. Thus amino acids bind together to form proteins.

All of the body's tissues and organs, including muscle, bone, skin, hair, and every other component or tissue, contain protein. It creates the hemoglobin, which provides oxygen to your blood, and the enzymes that power numerous chemical reactions.

The body uses large, complex molecules called proteins for a number of essential processes. They do the majority of their work in cells.

Amino acids, which are small natural compounds with an alpha (critical) carbon atom coupled to an amino organization, a carboxyl institution, a hydrogen atom, and a variable component known as an aspect chain, are the building blocks of proteins.

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The formula for the volume of a rectangular solid is Volume = length * width * height, or V = lwh.

Converting to cm = \( \frac{660}{10} = 66 {cm}^{3 } \\ \)

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Using only 28.02 g/mol as a conversion factor, we can:

Calculate the grams of N₂ in 5.03 × 10²⁰ moles of nitrogen gas.

Calculate the moles of N₂ molecules in 3.94 grams of nitrogen gas.

We want to identify the conversion factors required in a series of calculations:

A conversion factor is an arithmetical multiplier for converting a quantity expressed in one set of units into an equivalent expressed in another.

28.02 g/mol, which is the molar mass of nitrogen, is a conversion factor to convert moles to mass and vice versa.

Calculate the grams of N₂ in 10.58 L of nitrogen gas.

We want to convert 10.58 L (volume) to grams (mass). We need to conversion factors:

22.4 L/mol is the conversion factor to convert volume to moles.

28.02 g/mol is the conversion factor to convert moles to mass.

Calculate the grams of N₂ in 5.03 × 10²⁰ moles of nitrogen gas.

We want to convert 5.03 × 10²⁰ moles (moles) to grams (mass). We can do so by just using 28.02 g/mol as the conversion factor.

Calculate the moles of N₂ molecules in 3.94 grams of nitrogen gas.

We want to convert 3.94 grams (mass) to moles. We can do so by just using 28.02 g/mol as the conversion factor.

Calculate the moles of N₂ molecules in 4.73 L of nitrogen gas.

We want to convert 4.73 L (volume) to moles. The required conversion factor is 22.4 L/mol.

Using only 28.02 g/mol as a conversion factor, we can:

Calculate the grams of N₂ in 5.03 × 10²⁰ moles of nitrogen gas.

Calculate the moles of N₂ molecules in 3.94 grams of nitrogen gas.

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Answer:

c. Gas particles don't interact

Explanation:

Ideal gas particles do not interact with each other.

The gas molecules do not interact with each other except for colliding with each other. Gases expand to completely fill a container; they would not if they were attracted to each other. That being said, they obviously still do, as a result of Dalton's Law.

We can use the relativistic energy-momentum relation to solve this problem Therefore, the velocity of the electron is approximately 0.999999954 times the speed of light.

Relativistic effects are observed when the speed of an object approaches the speed of light. At these speeds, the object's kinetic energy and momentum increase significantly, and classical equations for energy and momentum no longer hold true. Instead, special relativity equations must be used to calculate the object's behavior.

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Answer: It is an option (B)

Explanation:

Correct option is B)

The molecular masses of hydrogen, oxygen and water are 2 g/mole, 32 g/mole and 18 g/mole respectively.

2H

2

​

+O

2

​

→2H

2

​

O

2×2=4 g of hydrogen reacts with  1×32=32 g of oxygen to form  2×18=36 g of water.

Hence,  

4

4

​

=1 g of hydrogen reacts with  

4

32

​

=8 g of oxygen to form  

4

36

​

=9 g of water.

9 grams of water can be produced when 8 g of hydrogen reacts with 8 g of oxygen.

Explanation:

Winter 4

Season when the northern hemisphere is tilted away from the sun.

Summer 2

Season when the northern hemisphere is tilted towards the sun.

Spring 1

Season when the northern hemisphere is neither tilted towards nor away from the sun; days getting longer and warmer.

Fall 3

Season in the northern hemisphere when the Earth is neither tilted towards nor away from the sun; days getting shorter and cooler.

Answer: Use the formula F= k q1q2/r^2 where k= 1/4π€ and it's value in air is 9× 10^9.

q1=q2= 2.4×10^-6C

F= 0.5N

You will get the value of r^2 and then will have to find the squre root of that value.

Explanation:

Amplitude is the maximum distance that matter is displaced from the resting position. Amplitude is a measure of the maximum deviation or displacement of a wave or oscillation from its average or rest position.

In physics, the amplitude is used to describe the height or depth of the peaks and valleys of a periodic wave, such as a sine wave or the oscillation of a pendulum. In this sense, the amplitude can be used to describe the maximum displacement of matter in some situations, such as the maximum angle through which a pendulum swings from its resting position.

Key points:

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The number of the hydrogen atoms that would be required from the diagram is 10.

A Saturated compound has all its carbon atoms connected by single bonds, and each carbon atom is bonded to the maximum number of hydrogen atoms possible. This arrangement allows the compound to have no available or unsaturated bonds for additional atoms.

The compound that is shown must be butane as such the number of the hydrogen atoms that it contains is a total of ten.

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helium and neon ( answer C)

The IUPAC name for (CH3)2C=CHCH2CH2OH is 4-methyl-2-penten-1-ol the parent chain of the compound is a five-carbon chain, which is a pentene. The double bond is located between the second and third carbon atoms, and there is a methyl group attached to the fourth carbon.

The hydroxyl group is located at the first carbon, which gives the suffix -ol. Therefore, the name of the compound is 4-methyl-2-penten-1-ol. The numbering of the carbon atoms starts from the end closest to the double bond, which gives the smallest number to the hydroxyl group.

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Calorimetry is a scientific technique used to measure the heat transfer or energy changes associated with chemical reactions or physical processes. It involves the use of a calorimeter, which is a device designed to contain and measure these energy changes. The important components of a calorimeter include a sample chamber where the reaction takes place, a thermometer to measure temperature changes, and an insulating material to minimize heat loss to the surroundings. Terms necessary for calorimetry include heat capacity (the amount of heat required to raise the temperature of the calorimeter), specific heat capacity (the amount of heat required to raise the temperature of a substance), and the principle of conservation of energy.

Answer:

A dietary substances inhibits uptake of non-heme iron is tea.

Explanation:

Tea is a dietary substance that inhibits the uptake of non-heme iron. Tea contains compounds called tannins, which are known to bind to non-heme iron and form insoluble complexes. These complexes are difficult for the body to absorb, leading to reduced iron absorption.

On the other hand, ascorbic acid (vitamin C) enhances the absorption of non-heme iron when consumed together in the same meal. It helps convert non-heme iron into a more absorbable form, promoting its uptake by the body.

Lactic acid and MFP (meat, fish, and poultry) do not inhibit the uptake of non-heme iron. Lactic acid is produced during fermentation and is not known to interfere with iron absorption. MFP, being a source of heme iron, can actually enhance the absorption of non-heme iron due to its interaction with iron in the digestive system.

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The primary intermolecular force responsible  here is london dispersion forces

An intermolecular force is an attractive force that arises between the positive components or also called as  protons  of one molecule and the negative components or  electrons of another molecule. Various physical and also chemical properties of a substance are dependent on this force.

The London dispersion force is a temporary attractive force that generally results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dipole attraction as well

This type of intermolecular force of attraction is generally seen in water and methanol system.

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If the concentration of a reactant is doubled and the reaction rate is unchanged, the reaction must be a zero-order reaction.

The order of a reaction represents how the rate of the reaction is affected by the concentration of the reactants. It can be determined by comparing the changes in the reaction rate with changes in the concentration of the reactants.

In a zero-order reaction, the reaction rate is independent of the concentration of the reactants. This means that doubling the concentration of a reactant will not have any effect on the reaction rate. In contrast, for a first-order reaction, doubling the concentration of a reactant would result in a doubling of the reaction rate. Similarly, for a second-order reaction, doubling the concentration of a reactant would lead to a fourfold increase in the reaction rate.

Since the given scenario states that the reaction rate remains unchanged despite doubling the concentration of the reactant, it implies that the reaction is a zero-order reaction.

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Answer:

a) Chlorine Trifluoride

b) Dichlorine Heptoxide

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Answer:

x is HCl because pH = 2 (acid and it reacted with Mg plus it turned litmus paper to red)

y is NaOH because pH = 10 (base and turned litmus paper to blue)

z is NaCl because pH = 7 (neutral and no reaction to litmus paper and Mg)