How many total moles of gas are there in the reactants and how many total moles of gas are there in the products?

CO(g) + 3H2(g) ⇌ CH4(g) + H2O(g)

Answer:Difference between Ceres and Pluto

Nestled in the asteroid belt between Mars and Jupiter, Ceres is a tiny loner, while Pluto — in the Kuiper Belt at the edge of the solar system — is nearly three times as big and hosts a handful of moons. A mixture of rock and water ice dominates Ceres' landscape, while methane and nitrogen ices cover Pluto

Explanation:

The concentration of the lithium hydroxide solution is 0.034 M.

To find the concentration of the lithium hydroxide solution, we can use the balanced equation for the neutralization reaction between phosphoric acid and lithium hydroxide:

H₃PO₄ + 3LiOH -> Li₃PO₄ + 3H₂O

We can also use the stoichiometry of the reaction to determine the number of moles of lithium hydroxide that were neutralized by the phosphoric acid. Since the ratio of moles of acid to moles of base is 1:3, we can use the following formula:

C(LiOH) = (moles of LiOH) / (volume of LiOH in liters)

To find the moles of LiOH, we can use the volume and concentration of the phosphoric acid:

moles of H₃PO₄

= (18.48 mL) * (1.66 M)

= 30.6248 moles

moles of LiOH

= (30.6248 moles) * (1 mol LiOH / 3 mol H₃PO₄)

= 10.2083 moles

To find the concentration of the lithium hydroxide solution, we can divide the moles of LiOH by the volume of LiOH:

C(LiOH) = (10.2083 moles) / (298.70 mL * 0.001 L/mL) = 0.034 M

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The combinations in which a precipitate will form are: 25.0 mL of 1.00 x 10⁻⁵ M Co(NO₃)₂ and 75.0 mL of 5.00 x 10⁻¹ M Na₂S; and 150 L of 0.0250 M BaCl₂ and 1.25 L of 0.0140 M Pb(NO₃)₂

Precipitation is a chemical reaction that occurs when two soluble salts are mixed to form an insoluble compound. The compound that forms a solid is known as the precipitate. Therefore, to determine if a precipitate is going to form when two soluble salts are combined, we need to look at the solubility of each salt. If one salt is soluble and the other is insoluble, a precipitate will form. If both salts are soluble, no precipitate will form.

Take a look at the following combinations:

1. 25.0 mL of 1.00 x 10⁻⁵ M Co(NO₃)₂ and 75.0 mL of 5.00 x 10⁻¹ M Na₂S: CoS will form as a precipitate.

2. 500 mL of 7.50 x 10⁻⁴ M AlCl₃ and 100.0 mL of 1.70 x 10⁻⁵ M Hg₂(NO₃)₂: No precipitate will form in this combination.

3. 150 L of 0.0250 M BaCl₂ and 1.25 L of 0.0140 M Pb(NO₃)₂: Ba(NO₃)₂ and PbCl₂ will form. PbCl₂ will precipitate as it is insoluble in water.

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Answer:

2 electrons

Explanation:

To determine the coldest temperature among the given numbers, we need to compare their values. The coldest temperature is the one that is the furthest below freezing (0 degrees Celsius).

Among the numbers provided, -3 is the coldest temperature. It is three degrees below freezing, indicating a lower temperature than any other number in the list.

The numbers 7, 1/2, -0.8, 0.8, -1/10, and 2 are all above freezing, with positive values or values close to zero. Although they vary in their distance from freezing, they are all warmer than -3. The number -3 is the only negative value in the list, making it the coldest temperature.

In summary, when comparing the temperatures in degrees Celsius, -3 is the coldest temperature among the numbers provided. It is three degrees below freezing and the only negative value in the list, indicating a lower temperature than the rest.

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To match each compound with the value of Ksp expressed as a function of the molar solubility, we need to know the chemical equations for the dissolution of these compounds.

The molar solubility of a compound is the number of moles of the compound that dissolve in one liter of solvent.

The solubility product constant (Ksp) is an equilibrium constant that represents the extent of the dissolution of a sparingly soluble compound.

Here are the chemical equations for the dissolution of the compounds you provided:

1. FeCl3:

FeCl3(s) ⇌ Fe3+(aq) + 3Cl-(aq)

2. CaBr2:

CaBr2(s) ⇌ Ca2+(aq) + 2Br-(aq)

3. FeCl2:

FeCl2(s) ⇌ Fe2+(aq) + 2Cl-(aq)

Now, let's match each compound with the corresponding expression of Ksp in terms of molar solubility:

1. FeCl3:

The molar solubility of FeCl3 is [Fe3+] = x and [Cl-] = 3x. Since there are three chloride ions per formula unit of FeCl3, the expression for Ksp is:

Ksp = [Fe3+][Cl-]³ = x(3x)³ = 27x⁴

2. CaBr2:

The molar solubility of CaBr2 is [Ca2+] = x and [Br-] = 2x. Since there are two bromide ions per formula unit of CaBr2, the expression for Ksp is:

Ksp = [Ca2+][Br-]² = x(2x)² = 4x³

3. FeCl2:

The molar solubility of FeCl2 is [Fe2+] = x and [Cl-] = 2x. Since there are two chloride ions per formula unit of FeCl2, the expression for Ksp is:

Ksp = [Fe2+][Cl-]² = x(2x)² = 4x³

Therefore, the compounds matched with their corresponding expressions of Ksp in terms of molar solubility are:

1. FeCl3: Ksp = 27x⁴

2. CaBr2: Ksp = 4x³

3. FeCl2: Ksp = 4x³

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1. The limiting reactant is H₂O

2. The number of mole of H₃PO₄ formed during the reaction is 5.33 moles

The limiting reactant for the reaction between 2 moles of P₄O₁₀ and 8 moles of H₂O can be obtained as shown below:

P₄O₁₀ + 6H₂O -> 4H₃PO₄

From the balanced equation above,

1 mole of P₄O₁₀ reacted with 6 moles of H₂O

Therefore,

2 moles of P₄O₁₀ will react with = 2 × 6 = 12 moles of H₂O

From the above calculation, a higher amount of H₂O is required to react completely with 2 moles of P₄O₁₀

Thus, we can say that H₂O is the limiting reactant.

The mole of H₃PO₄ formed from the reaction can be obtained as illustrated below:

P₄O₁₀ + 6H₂O -> 4H₃PO₄

From the balanced equation above,

6 moles of H₂O reacted with 4 moles of H₃PO₄

Therefore,

8 moles of H₂O will react with = (8 × 4) / 6 = 5.33 moles of H₃PO₄

Thus, we can conclude that the number of mole of H₃PO₄ formed is 5.33 moles

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Answer:

the atom has 12 electrons, 2, 8 and 2. The atom can loose its last 2 electrons and becomes a 2+ ion. But then the electron configuration is 2 8.

Explanation:

i am sorry if that does not help!

Answer:

The light radiates from the Sun, warming our Earth, but that also means over time the Sun loses mass. The Sun consumes mass to produce light. As the Sun loses mass its gravitational pull on the planets weakens slightly.

Explanation:

https://www.forbes.com/sites/briankoberlein/2018/04/10/the-sun-is-losing-mass-and-getting-larger-at-the-same-time/#:~:text=The%20light%20radiates%20from%20the,on%20the%20planets%20weakens%20slightly.

This is the site I got this info from, just so you know.  I hope this helps!

\(LiNO_{3}\)There are 0.075 moles of \(LiNO_{3}\) in 250 mL of a 0.30 M solution.

To determine the number of moles of \(LiNO_{3}\) in 250 mL of a 0.30 M solution, we can use the formula:

moles of solute = concentration (M) x volume (L)

First, we need to convert the volume from milliliters (mL) to liters (L):

250 mL = 0.25 L

Next, we can substitute the given values into the formula:

moles of \(LiNO_{3}\) = 0.30 M x 0.25 L

moles of \(LiNO_{3}\) = 0.075 mol

Therefore, there are 0.075 moles of \(LiNO_{3}\) in 250 mL of a 0.30 M solution.

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i cant understand your question define briefly

It is true that according to Hubble's law, the farther away a galaxy is, the faster it is moving away from us.

It is true that the formation of a star occurs when nuclear fusion begins to fuse light elements into heavier ones;

The distance to the nearest stars can be determined by parallax, the apparent shift of a start against background stars observed as the earth moves along its orbit. (Option B)

Based on the accompanying H-R Diagram, the type of start that has the greatest temperature is the blue giants (Option C)

Two hydrogen atoms come together in a nuclear fusion reaction to produce Helium Gas. (Option A).

Hubble's law, which essentially states that the velocity of a galaxy (or, as it is commonly plotted, its redshift) is precisely proportionate to its distance, also reveals crucial information about the condition of the universe. There should be no relationship between distance and velocity if the cosmos is static and unchanging.

Hubble's law is the physical cosmology observation that galaxies move away from Earth at a rate proportionate to their distance. In other words, the farther they are from Earth, the quicker they are travelling away.

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The correct answer is B. Using adhesive tape on a pressurized oxygen tank can cause an explosion. This is because the adhesive tape may not be able to withstand the pressure of the tank and may break, causing a leak or an explosion.

It is important to use only approved materials for sealing or securing oxygen tanks. Using unapproved materials such as adhesive tape may cause severe injuries or even fatalities. Therefore, it is crucial to always follow the manufacturer's instructions and guidelines when dealing with pressurized oxygen tanks. Using adhesive tape may also cause oxygen contamination, which can be harmful to patients who rely on oxygen therapy.
The correct answer to your question is:

B. an explosion.

Using adhesive tape on a pressurized oxygen tank is dangerous because it can create a potential source of ignition. When the adhesive comes into contact with high-pressure oxygen, it can react violently, possibly leading to an explosion. To ensure safety, it's crucial to avoid using adhesive materials on pressurized oxygen tanks and follow proper handling guidelines.

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They emit ionizing radiation (alpha, beta, and/or gamma rays) that has the property of releasing energy. Because it has the potential to dislodge firmly bound electrons from an atom's orbit, the energy is known as ionizing radiation.

a radioactive process where a nucleus spontaneously splits, loses electrons, or undergoes fission while also emitting radiation.

Some of the mass of uranium nuclei is transformed into kinetic energy during radioactive decay (the energy of the moving particles).

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Reaction B requires the least energetic collisions to reach the transition state.

The energy profiles for the four reactions show the potential energy changes as the reactions progress. The transition state is the highest energy point along the reaction pathway. In order for a reaction to occur, molecules must collide with enough energy to overcome the activation energy barrier and reach the transition state.

Looking at the energy profiles, we can observe that Reaction B has the lowest activation energy barrier. The difference between the reactant energy and the energy of the transition state is smaller compared to the other reactions. This means that molecules in Reaction B require less energy to reach the transition state.

Reaction A, C, and D all have higher activation energy barriers compared to Reaction B. The reactant molecules in these reactions need to possess more energy to overcome the activation energy barrier and reach the transition state.

In summary, Reaction B requires the least energetic collisions to reach the transition state because it has the lowest activation energy barrier among the four reactions.

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The missing word is "oxygen". Elements are the simplest form of matter that cannot be broken down into simpler substances by chemical means.

In order to speed up a fire to create an explosion, you need to provide more oxygen to the combustion process. The reaction between fuel and oxygen produces heat and gases, which cause the fire to grow and spread. By regulating the amount of oxygen available and how closely it's packed together with other elements, you can control the rate of the reaction and the intensity of the fire. If the oxygen supply is suddenly increased or the fuel is densely packed, the fire can quickly become an explosion due to the sudden release of energy.

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Answer:

2AgNO3 + H2S => Ag2S + 2HNO3

Explanation:

Before its activity is lowered to 16.0 mci, it will take 47 days. A medical supply store buys a radioactive isotope sample with a 172.0-mci sample. The term "radioisotope" refers to an element's radioactive form.

which consists of atoms with unstable nuclei that undergo radioactive decay to stable forms, producing distinctive alpha, beta, or gamma radiation. Radioisotopes are an element's radioactive isotopes. They are the atoms with unstable neutron-proton combinations or excess energy in their nuclei. During those processes, the radionuclide is said to experience radioactive decay, albeit the surplus energy may be put to use in any number of ways. one of two or more atoms with a nuclear makeup that has a different amount of neutrons than protons but the same number of protons overall.

t = - ln(R/Ro)/lamda

t = -14 (ln(16/172)/ln2

t = 47 days.

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3531.23 J is the energy used to heat tin when 229.2 g of tin was heated from 46.3 to 115.7°C.

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases by 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

Q=mcΔT

Give data:

m=229.2 g

c=0.222 J/g x °C

ΔT=115.7°C - 46.3°C

ΔT= 69.4 °C

Putting value in the equation:

Q=mcΔT

Q=229.2 g x 0.222 J/g°C x 69.4 °C

Q= 3531.23 J

Hence, 3531.23 J is the energy used to heat tin.

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Answer:

A and D

Explanation:

Answer:

A & D

Explanation:

The given reaction of silver nitrate with sodium chloride is an example of double displacement reaction where, two groups replaces each other. Thus, option D is correct.

Displacement reaction is a type of reaction in which a species from a reactant is displaced by other species or group from reagent. There are single displacement reaction as well as double displacement reaction.

In single displacement reaction, only one group is displaced by another group from the second reactant. Whereas in double displacement reaction, two groups are displaced each other between two reactants.

In the reaction between silver nitrate and sodium chloride, the nitrate group and chloride group interchange between the metals silver and sodium as written in the reaction. Hence, it is a double displacement reaction.

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Your question is incomplete, but your complete question probably was:

Jose and Sue were investigating the formation of precipitates in chemistry lab. They

mixed a silver nitrate solution with a sodium chloride solution and immediately a

white solid appeared in the bottom of the test tube. This white solid is a precipitate

of silver chloride. The reaction is represented with the equation:

AgNO3(aq) + NaCl (aq) → AgCl (s) + NaNO3(aq)

The equation represents a ________________ reaction.

A) synthesis

B) decomposition

C) neutralization

D) double replacement

There are some important equations that we must know:

\(PV=nRT\)

\(n=\dfrac{m}{M}\)

We're given:

First, solve for n:

\(n=\dfrac{m}{M}\)

\(n=\dfrac{128}{32.00}\\\\n=4\)

Now, solve using the Ideal Gas Law:

\(PV=nRT\)

⇒ Isolate V:

\(V=\dfrac{nRT}{P}\)

⇒ Plug in given values:

\(V=\dfrac{4*8.31*273}{101.3}\\\\V =89.6\)

a. 89.6 L

The angle of repose refers to the maximum angle at which a granular material, such as sand, can remain stable without sliding or flowing. It is the angle between the horizontal surface and the slope formed by the material's natural pile or cone shape.

When sand-sized particles fall from the air and accumulate, they tend to form a cone-shaped pile due to gravity and the interlocking and friction between the particles. As more particles are added to the pile, the slope of the pile increases until it reaches a point where the gravitational forces acting on the particles are balanced by the friction and interlocking forces between them. This point is the angle of repose.

The angle of repose depends on various factors, including the particle size, shape, and density. Smaller particles with smoother surfaces may have a lower angle of repose compared to larger particles with rougher surfaces. Similarly, denser particles may form steeper piles compared to less dense particles.

It's important to note that the angle of repose is an approximation and can vary based on conditions such as moisture content, compaction, and other environmental factors. Additionally, particles falling from the air may not always reach their angle of repose immediately, as they may undergo additional settling and reorganization over time.

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a) Melting: An example of melting that occurs in our everyday life is when we heat butter on a stovetop.

b) Freezing: Freezing is the process in which a liquid transforms into a solid upon cooling.

c) Condensation: One example of condensation that we encounter regularly is when water droplets form on the surface of a cold drink on a hot day.

d) Evaporation: Evaporation is the process by which a liquid transforms into a gas or vapor.

e) Sublimation: Sublimation refers to the transformation of a substance directly from a solid to a gas without passing through the liquid state.

a) Melting:  Butter is a solid at room temperature, but when heat is applied, it melts into a liquid. This change is a result of the increase in temperature, which provides enough energy to overcome the intermolecular forces holding the butter molecules together.

b) Freezing:Eventually, the temperature reaches the freezing point of water (0°C or 32°F), at which the water molecules slow down and arrange themselves into a regular, crystalline structure. This transformation from a liquid to a solid state is accompanied by the release of heat energy.

c) Condensation: As the temperature decreases, the air's capacity to hold moisture decreases, causing the water vapor in the air to condense into liquid water droplets. This process occurs due to the transfer of heat energy from the warm air to the cold surface, leading to the saturation of the air and the conversion of water vapor into liquid form.

d) Evaporation:  As the sun's heat energy is absorbed by the water molecules on the clothes' surface, their kinetic energy increases, causing them to break free from the liquid phase and escape into the surrounding air as water vapor. This process occurs because the molecules at the liquid surface with sufficient energy can overcome the attractive forces within the liquid and enter the gas phase.

e) Sublimation: Sublimation refers to the transformation of a substance directly from a solid to a gas without passing through the liquid state. An example of sublimation is the process of dry ice (solid carbon dioxide) converting into carbon dioxide gas.

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The mass of sulfurous acid produced when 245g of sulfur dioxide is reacted with water is 313.8 g

From the question, we are to determine the mass of sulfurous acid produced

First, we will write the balaced chemical equation for the reaction

H₂O + SO₂ → H₂SO₃

This means 1 mole of H₂O reacts with 1 mole of sulfur dioxide (SO₂) to produce 1 mole of sulfurous acid (H₂SO₃)

Now, we will determine the number of moles of sulfur dioxide present

Mass of sulfur dioxide present = 245 g

Molar mass of sulfur dioxide = 64.066 g/mol

Using the formula,

\(Number \ of \ moles = \frac{Mass}{Molar\ mass}\)

Then,

Number of moles of SO₂ present = \(\frac{245}{64.066}\)

Number of moles of SO₂ present = 3.824 moles

This is the number of moles of SO₂ present

From balanced chemical equation

1 mole of H₂O reacts with 1 mole of sulfur dioxide (SO₂) to produce 1 mole of sulfurous acid (H₂SO₃)

Then,

Water (H₂O) will react with the 3.824 moles of sulfur dioxide (SO₂) to produce 3.824 moles of sulfurous acid (H₂SO₃)

∴ The number of moles of sulfurous acid produced is 3.824 moles

Now, for the mass of sulfurous acid produced

Molar mass of sulfurous acid = 82.07 g/mole

Using the formula,

Mass = Number of moles × Molar mass

Mass of sulfurous acid produced = 3.824 × 82.07

Mass of sulfurous acid produced = 313.8 g

Hence, the mass of sulfurous acid produced is 313.8 g

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Answer:

2C3H6 + 9O2 => 6CO2 + 6H20

Explanation:

2C3H6 + 9O2 => 6CO2 + 6H20

C = 6

H = 12

O = 18

Bromine is the only non metal that exists in liquid state at the room temperature.

Bromine belongs to the member of halogen group. Heavy, volatile, mobile etc are some of the characteristics of it. Bromine is quite dangerous.

It has red brown color at room temperature. It is very reactive as it evaporates quickly to form a similar colored gas.  

Bromine molecules depicts strong inter-molecular force so that's why it doesn't evaporates at room temperature.  It also shapes up diatomic molecules and Van Der Walls interactions are highly strong.

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Answer:

helium

Explanation:

Answer:

are gases at room temperature

usually do not react with other elements

are in a group called the noble gases

are nonmetals

Explanation:

The elements in group 18 or group O are the inert elements. They have completely outermost shell and are not reactive. Every atom reacts with another in order to be like the noble gases.

It should be noted that group 17 elements are very reactive compared to the group O elements.