Consider the following equilibrium system: H2(g) + 12(g) + 2H2(g) AG°=-16.77kJ At 298 K, HI is injected into an evacuated container. At equilibrium, the partial pressure of H2 is 0.103 atm. What is the partial pressure of HI? A) 9.24 atm B) 3.04 atm C) 870 atm 10) D) 0.870 atm E) 33.5 atm

Answer:

1

Explanation:

1

Answer:

Explanation:

The reaction that can light the thermite is the combination of methane and oxygen. Option C

There is an ignition reaction when we burn a substance in another substance. Now, we know that an exothermic reaction refers to the kind of reaction hat is able to produce heat.

Since the exothermic reaction can be able to produce heat, this is the reaction that we can use to light the reaction between the magnesium and the oxygen so that we can be able to light the thermite.

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Answer:

7,008,000

Explanation:

1. 7.008 x 10^6

2. Move the decimal point 6 times to the right and then calculate from there  

The more the number of particles the better the frost protection hence, salt offers a better frost protection than sugar.

The term frost protection has to do with protection agianst the accumulation of frost or snow.

We have to note that this property depends on the ability of the substance to decrease the melting point of ice. The more the number of particles the better the frost protection hence, salt offers a better frost protection than sugar.

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Answer:

Physical properties include color, density, hardness, and melting and boiling points. Chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion.

Explanation:

There is, however, a relationship between a planet's distance from the Sun and its period of revolution. Kepler's third law of planetary motion says that the square of the planet's orbital period is proportional to the cube of its semimajor axis.

According to Kepler's third law of planetary motion, a planet's semimajor axis and orbital period are inversely proportional.

Kepler's third law is defined as the cubes of the semi-major axes of the planets' orbits are directly proportional to the squares of the planets' orbital periods. According to Kepler's Third Law, as an orbiting planet's radius increases, so does the time of its orbit around the Sun. A planet's orbits around the sun are accurately described by Kepler's third law in terms of their period and distance.

The cube (third power) of an orbital radius is directly related to the square (second power) of a planet's period (P2 = R3). The period of revolution shortens as the planet's distance from the sun rises.

Thus, according to Kepler's third law of planetary motion, a planet's semimajor axis and orbital period are inversely proportional.

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To answer this question we have to usethe ideal gas law:

Where P is the pressure, V is the volume, n is the number of moles, R is the constant of ideal gases (0.082atmL/molK) and T is the temperature (in Kelvin degrees).

The first step is to convert the given mass of N2 to moles using its molecular mass:

And convert the pressure from mmHg to atm (1atm=760mmHg):

Finally, solve the initial equation for T and replace for the given values:

The temperature of the gas is 539.15K.

Convert this temperature to Celsius by substracting 273.15 to the temperature in Kelvins:

The temperature of the gas is 226°C.

Answer: yes

Explanation: Light receptors within the eye transmit messages to the brain, which produces the familiar sensations of color. Newton observed that color is not inherent in objects. Rather, the surface of an object reflects some colors and absorbs all the others. We perceive only the reflected colors.

Answer:

30.48 cm equals a foot

Explanation:

Answer:

30.48 cm

Explanation:

Inch is an imperial and United States Customary systems unit of length, equal to 1/12 of a foot.

1 inch = 2.54 cm.

1 ft= 30.48 cm

Answer:

2. nonmetals and metals

Explanation:

Most of the groups in the periodic table of the elements are vertical columns, also known as groups. These groups are numbered 1 through 18 and are typically labeled on the left-hand side of the periodic table. Elements within a group have similar chemical properties and characteristics. For example, group 1 is known as the alkali metals and includes elements like lithium, sodium, and potassium. Group 17 is known as the halogens and includes elements like fluorine, chlorine, and bromine. There are a few exceptions to this general pattern, such as the lanthanides and actinides, which are not typically included in the main body of the periodic table.

Answer:

ummmm

Explanation:

Since rate of reaction depends on the surface area of the reactants,  lumps of sodium carbonate react more slowly with dilute nitric acid than powdered sodium carbonate.

The rate of reaction is affected by many factors among which is the surface area of the reactants. We must note that the greater the surface area the quicker the rate of reaction.

As such, the surface area of the powdered sodium carbonate is greater than that of the lumps of sodium carbonate. Therefore, lumps of sodium carbonate react more slowly with dilute nitric acid than powdered sodium carbonate. This is because the particles of the powdered sodium carbonate collide more easily with the acid molecules than the lumps of sodium carbonate.

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When 0.018 mol of tripalmitin is hydrolyzed, the theoretical yield of palmitic acid will be 0.054 moles.

The hydrolysis of tripalmitin with NaOH is saponification where a glycerol compound and fatty acids are released. Thus the fatty acids combined with the Na ion further react with the acid HCl forming a salt. Tripalmitin is a triglyceride obtained from 3 hydroxy groups of glycerol by palmitic acid (hexadecanoic). Thus, this hydrolysis yield carboxylate salt and alcohol called a saponification reaction.

Hydrolysis of 1 tripalmitin releases 3 fatty acids hence, for 0.018 moles, palmitic acid yielded is,

= 0.018 × 3

= 0.054 moles.

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Answer:

sulphur

Explanation:

Therefore the correct option is d. Sulphur atom has the weakest attraction for the electrons in a bond with an H atom.

Answer:

this is not the full question

\(\\ \rm\Rrightarrow pH=-log[H^+]\)

\(\\ \rm\Rrightarrow pH=-log[2.5\times 10^{-6}]\)

\(\\ \rm\Rrightarrow pH=-log2.5-log10^{-6}\)

\(\\ \rm\Rrightarrow pH=-0.398+6\)

\(\\ \rm\Rrightarrow pH=5.602\)

Answer:

the attached file

Explanation:

The potassium is an alkali metal which explode in water to produce base and hydrogen gas.  The balancing came from the fact that each side needed the same number of hydrogens so I made the products have 4 (the lowest even number) then put the appropriate coefficients in the reactants to make that work.  Since there are two molecules of potassium hydroxide there also needed to be 2 atoms of potassium in the reactants.  

Answer:74

Explanation:

Answer:

I believe Tungsten has 2 valence electrons.

Explanation:

Hope this helps!

Answer: C

Explanation: This is because of a nice thing called guessing

The reaction with S_N₂mechanism is likely to be faster than the reaction with S_N₂ mechanism. This is because the carbocation intermediate formed in S_N₁ mechanism is more stable.

The pair of reactions given below is:

CH₃Cl + NaOH→CH₃OH + NaCl

CH₃I + NaOH→CH₃OH + NaI

The type of substitution mechanism:

The first reaction involves S_N₁ mechanism (unimolecular nucleophilic substitution). The second reaction involves S_N₂ mechanism (bimolecular nucleophilic substitution).

Prediction of the reaction that will occur at a faster rate:

The reaction with S_N₁ mechanism is likely to be faster. The rate of this reaction mainly depends on the stability of the carbocation intermediate formed after the initial step. In this case,CH₃Cl reacts to form a tertiary carbocation which is more stable than the primary carbocation formed in CH₃I.

Drawing the correct organic product:

CH₃Cl + NaOH→CH₃OH + NaCl

CH₃I + NaOH→CH_3OH + NaI

CH₃C reacts with NaOHin an S_N₁ mechanism to produceCH₃OH and NaCl.


CH₃ reacts withNaOH in an S_N₂mechanism to produce CH₃OH and NaCI.


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To determine how long it will take until both have the same activity, please provide additional information about the two objects or substances being compared.

This could include their initial activity levels, decay rates, or half-lives. Once this information is provided, I can help you calculate the time it takes for both to have the same activity.

The time it takes for them to equalize depends on factors like initial conditions, rates of change, and the specific mathematical models governing the activities.

Without additional details, it is difficult to provide a precise answer.

It is recommended to provide more specific information to estimate the time required for the activities to reach equilibrium.

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The potential charge an atom would have if every one of its links to other atoms were fully ionic is known as the oxidation state, also known as the oxidation number. It describes how much an atom in a chemical molecule has been oxidized. The oxidation state can theoretically be positive, negative, or zero.

FeBr3

Br will remain in its normal oxidation state, which is -1, because it is more electronegative than Fe.

Let Fe's oxidation state now be "x."

x + (3*-1) = 0

=> x = +3

Answers: Fe : +3 & Br : -1

The total number of electrons that have been removed from an element (creating a positive oxidation state) or added to an element (creating a negative oxidation state) to get it to its current state is the oxidation state of an atom.

One of these oxidation laws states that a free, neutral element has an oxidation number of zero. A monoatomic ion's charge is the same as its oxidation number. For Group IA elements, the oxidation number is always 1. For Group IIA elements, the oxidation number is always +2.

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Background data such as laboratory reports and worksheets for exposure records should be kept for a specific period of time as required by regulatory agencies or industry standards.

In the United States, the Occupational Safety and Health Administration (OSHA) requires employers to keep accurate records of workplace exposures to hazardous substances, including chemical, physical, and biological agents.

The records must be maintained for at least 30 years, according to OSHA's Occupational Safety and Health Standards. These records should include data such as air monitoring results, medical surveillance records, and training records.

Similarly, the Environmental Protection Agency (EPA) requires companies to keep records of environmental testing and monitoring data for hazardous waste sites, which must be maintained for a minimum of 5 years.

Other regulatory agencies and industry standards may have different requirements for record-keeping, depending on the type of data and the specific industry or activity involved.

In general, it is important to keep background data such as laboratory reports and exposure records for a sufficient period of time to ensure that the information is available for future reference, analysis, and regulatory compliance.

The specific length of time for which these records should be kept will depend on a variety of factors, including regulatory requirements, industry standards, and the nature of the data itself.

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Answer:

6

Explanation:

Answer: 6

Explanation:

I just took this thang

Answer:

THE HEAT ON THE SURFACE OF THE EARTH

Explanation:

Answer:

Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat.

Explanation:

Answer:

absotutately right

Explanation:

What is the pH color scale?

The pH scale runs from 0 to 14, with each number assigned a different color. At the bottom of the scale sits red, which represents the most acidic, and a dark blue at its opposite end represents 14 and alkalinity. In the middle zone, the pH scale becomes neutral

The pH of the solution could be 10. The basic solution has a pH value of more than 7.

Litmus paper helps us qualitatively determine a substance as an acid or base. For any substance to be a base, blue litmus must remain blue.

The pH scale ranges from 0 to 14 and anything below 7.0 is acidic and anything above 7.0 is alkaline or basic.

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It takes 1 mol of sulfur to produce 1 mol of sulfur dioxide. Therefore, 64 g of sulfur is required to produce 64 g of sulfur dioxide.

To calculate the mass of sulfur required to produce 64 g of sulfur dioxide, the following equation can be used:

m (sulfur) = (64 g SO2) / (32 g/mol SO2) × (1 mol S/ 32 g S) = 2 mol S

Therefore, the mass of sulfur required to produce 64 g of sulfur dioxide is 2 mol S or 64 g.

The mass of sulfur that must be burned to produce 64 g of sulfur dioxide is 64 g. This is because the molar mass of sulfur dioxide is 32 g/mol and the molar mass of sulfur is 32 g/mol.

Therefore, it takes 1 mol of sulfur to produce 1 mol of sulfur dioxide. Therefore, 64 g of sulfur is required to produce 64 g of sulfur dioxide.

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