When Chlorine gas is put in contact with Aluminum metal at high temperatures, Aluminum Chloride is produced. word equation and balanced​

Answer:

The particles' kinetic energy is increased, allowing the gas to expand. When a gas is heated the volume will increase when gas is increased....

Answer:

See explanation

Explanation:

a)  The average kinetic energy of the molecules of a gas depends on the temperature and the molar mass of the gas. However, at the same temperature, all gases have the same average kinetic energy. Hence Xe and Ne atoms have the same average kinetic energy.

b) To decrease the kinetic energy of Xe atoms the temperature must be changed. When the temperature is changed, Xe a lower average kinetic energy due to its larger molar mass.

c) All gases occupying the same volume have equal number of particles at the same temperature and pressure according to Avogadro's law. Therefore, since Xe and Ne occupy the same volume at the same temperature but different pressures they do not contain the same number of particles. Xe gas contains more particles because there are more moles of Xe gas present than moles of Ne gas. The greater the number of moles of gas present, the more the number of gas particles present.

For the given precipitation reaction, Pb (NO₃)₂ (aq) + 2KI (aq) ⇒ PbI₂ (s) + 2KNO₃ (aq), the complete ionic equation is

Pb²⁺  +  2NO₃ +  2K⁺  +  2I⁻   ⇒  PbI₂ (s)  + 2K⁺ + NO₃⁻

The reaction starts with these components, Pb (NO₃)₂  and 2KI, which are present in an aqueous state. All the components in the aqueous state get dissociated and form ions.

Pb²⁺  +  2NO₃ +  2K⁺  +  I⁻   ⇒  PbI₂ (s)  + 2K⁺ + NO₃⁻

Ions such as 2NO₃ and  2K⁺  are soluble in nature. Pb²⁺ and I⁻  react to form  PbI₂. PbI₂ is present in solid form. PbI₂ is insoluble in the solution and forms a precipitate.

The correct option is (A).

To know more about precipitation, visit: https://brainly.com/question/13877944

#SPJ1

0.171moles

According to the ideal gas equation;

where:

• P is the, pressure ,in atm

• V is the ,volume ,in litres

• n is the ,number of moles ,of gas

• R is the, boltzmann constant

• T is the, temperature ,in Kelvin

Given the following parameters

P = 2.5atm

V = 1.67L

T = 25.0°C = 25 + 273 = 298K

R = 0.08205Latm/molK

Substitute the given parameters into the formula

Hence the amount of moles of nitrous oxide gas used is 0.171moles

Better temperatures can growth the quantity of water vapor withinside the air, that could growth the probability of precipitation.

Different factors, inclusive of air pressure, wind, and atmospheric instability, additionally play a function withinside the formation of rain, and the connection among temperature and precipitation may be complicated. The temperature of atmospheric gases could have a substantial effect at the manufacturing of rain. The environment is a complicated device that performs a vital function with inside the Earth`s water cycle, which incorporates the system of precipitation, inclusive of rain. Precipitation takes place while water vapor with inside the air condenses into liquid droplets or ice crystals, which fall to the floor as rain, snow, or hail. The temperature of the environment impacts the quantity of water vapor that the air can preserve. As temperature increases, the air can preserve extra water vapor, that could cause better tiers of humidity. When the air will become saturated with water vapor, it reaches its dew point, and the extra water vapor condenses into liquid droplets or ice crystals, that could shape clouds and subsequently precipitation. In addition, international warming, that's inflicting an growth in atmospheric temperatures, can cause modifications in precipitation styles and extra severe climate events. Understanding the connection among temperature and precipitation is vital for predicting and mitigating the affects of weather change.

For such more questions on precipitation

https://brainly.com/question/20469884

#SPJ11

I have no answer for you because we don't have the text either

Problem 1:

we need 80 g of the 15% solution and 120 g of the 20% solution.

Let x be the mass of the 15% solution needed and y be the mass of the 20% solution needed.

x + y = 200 (total mass of the two solutions)

0.15x + 0.2y = 0.17(200) (total amount of solute in the two solutions)

Solving these equations,  x = 80 g and y = 120 g.

Therefore, we need 80 g of the 15% solution and 120 g of the 20% solution.

Problem 2:

we need 120 g of the 18% solution and 180 g of the 5% solution.

Let x be the mass of the 18% solution needed and y be the mass of the 5% solution needed.

x + y = 300

0.18x + 0.05y = 0.07(300)

Solving these equations, x = 120 g and y = 180 g.

Therefore, we need 120 g of the 18% solution and 180 g of the 5% solution.

Problem 3:

The mass percentage of the final solution is 135 g/550 g × 100% = 24.55%.

The total mass of the final solution is 200 g + 350 g = 550 g.

The total amount of solute in the final solution is:

0.15(200 g) + 0.20(350 g) = 65 g + 70 g = 135 g.

Therefore, the mass percentage of the final solution is 135 g/550 g × 100% = 24.55%.

Problem 4:

The mass percentage of the final solution is 110 g/335 g × 100% = 32.84%.

The total mass of the final solution is 300 g + 35 g = 335 g.

The total amount of solute in the final solution is:

0.15(300 g) + 35 g = 75 g + 35 g = 110 g.

Therefore, the mass percentage of the final solution is 110 g/335 g × 100% = 32.84%.

Problem 5:

The mass percentage of the final solution is 18.18%.

Calculate the final mass of the solution:

Final mass = 400 g + 150 g = 550 g

Calculate the mass of solute in the 25% solution:

Mass of solute = 0.25 x 400 g = 100 g

Calculate the mass percentage of the final solution:

Mass percentage = (mass of solute ÷ final mass) x 100%

Mass percentage = (100 g ÷ 550 g) x 100%

Mass percentage = 18.18%

To know more about mass of solutions, visit:

https://brainly.com/question/29482678

#SPJ1

Answer:

Because it helps me connects other sciences to each other, such as biology, physics, geology, and environmental science. Basic knowledge of chemistry helps you to read and understand product labels. Chemistry can help you make informed decisions.

(Happpy to help!)

Answer:

Because chemistry class is very important.

Answer:

Explanation:

When volume of gas is V , pressure is P and temperature is T , if n be number of moles of gas

PV / RT = n , R is universal gas constant .

When volume becomes .5 V , pressure P and temperature T

number of moles = Px .5 V / RT = .5 PV / RT = .5 n

Number of moles of gas becomes half .

so 4 moles becomes  2 moles

No of moles lost = 4 - 2 = 2 moles.

Answer:

Copper

Explanation:

The given electronic configuration is of copper which sums upto 29  which is the atomic number of copper.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

Learn more about electronic configuration,here:

https://brainly.com/question/14283892

#SPJ5

A 558.5 g sample of iron contains twice as many atoms as 60.06 g of carbon, C; option D

A true statement is a statement that can be backed up by facts and evidence.

Considering the given statements about what 558.5 g sample of iron contains:

a. 558.5 mol of iron is false because 558.5 of iron contains 558.5/55.8 = 10 moles of iron

b. 6.02 x 10²³ atoms of iron because 56 g of iron contains 6.02 x 10²³ atoms of iron

c. ten times as many atoms as 0.5200 g of chromium, Cr is false 0.52 g of Cr contains 6.02 * 10²¹ atoms

d. twice as many atoms as 60.06 g of carbon, C is true because  60.06 g of carbon contains 60.06/12 = 5 moles of carbon.

Learn more about moles at: https://brainly.com/question/15356425

#SPJ1

Answer:

Silver and copper are the two best conductors of heat and electricity. Lead is the poorest conductor of heat. Bismuth, mercury and iron are also poor conductors. Density: Metals have high density and are very heavy.

Answer:

Copper element is most likely to conduct heat.

The molarity of magnesium ion that remains when 69.5% has precipitated is 0.021 M.

The balanced equation is Mg2+(aq) + PO43-(aq) → Mg3(PO4)2(s).

We used the balanced equation to determine that 1 mole of magnesium ion reacts with 2 moles of phosphate ion, and then multiplied the amount of added phosphate by the stoichiometric ratio to calculate the amount of magnesium ions that will react.

To solve this problem, we first need to write the balanced equation for the precipitation reaction of magnesium phosphate:

Mg2+(aq) + PO43-(aq) → Mg3(PO4)2(s)

We know that 69.5% of the magnesium ions have precipitated, which means that 30.5% remain in solution. Therefore, the concentration of magnesium ions in solution is:

0.305 x 1.291 M = 0.394 M

This is the molarity of magnesium ions before the phosphate has been added. However, we also need to take into account the fact that the phosphate will react with some of the magnesium ions, forming magnesium phosphate precipitate. We don't know how much of the magnesium ions will react, so we can assume that the reaction goes to completion and calculate the molarity of magnesium ions that remain in solution after the reaction has occurred.

To do this, we need to determine the amount of phosphate that has been added to the solution. Since we don't know the volume of the solution, we can assume that we have added 1 liter of phosphate solution. The amount of phosphate added is:

0.746 M x 1 L = 0.746 mol

According to the balanced equation, 1 mole of magnesium ion reacts with 2 moles of phosphate ion. Therefore, the amount of magnesium ions that will react with the added phosphate is:

0.746 mol PO43- x (1 mol Mg2+/2 mol PO43-) = 0.373 mol Mg2+

This means that 0.373 moles of magnesium ions will react, leaving 0.394 - 0.373 = 0.021 moles of magnesium ions remaining in solution. To calculate the molarity of these remaining magnesium ions, we divide the amount by the total volume of the solution:

Molarity of magnesium ions = 0.021 mol / 1 L = 0.021 M

Learn more about magnesium here:

https://brainly.com/question/1533548

#SPJ1

Precision relates to the consistency and reproducibility of measurements, while accuracy reflects how close measurements are to the true value.

Precision and accuracy are two important concepts in the context of errors in measurements. While they both pertain to the quality of data, they refer to different aspects.

Precision refers to the degree of consistency or reproducibility in a series of measurements. It reflects the scatter or spread of data points around the average value. If the measurements have low scatter and are tightly clustered, they are considered precise. On the other hand, if the measurements have a high scatter and are widely dispersed, they are considered imprecise.

Accuracy, on the other hand, refers to the closeness of measurements to the true or target value. It represents how well the measured values align with the actual value. Accuracy is achieved when measurements have a small systematic or constant error, which is the difference between the average measured value and the true value.

Errors in measurements can be classified into two types: random errors and systematic errors.

Random errors are associated with the inherent limitations of measurement instruments or fluctuations in the measurement process. They lead to imprecise data and affect the precision of measurements. Random errors can be reduced by repeating measurements and calculating the average to minimize the effect of individual errors.

Systematic errors, on the other hand, are caused by consistent biases or inaccuracies in the measurement process. They affect the accuracy of measurements and lead to a deviation from the true value. Systematic errors can arise from factors such as instrumental calibration issues, environmental conditions, or experimental techniques. These errors need to be identified and minimized to improve the accuracy of measurements.

In summary, precision refers to the degree of consistency or reproducibility of measurements, while accuracy refers to the closeness of measurements to the true value. Random errors affect precision, while systematic errors affect accuracy. To ensure high-quality measurements, both precision and accuracy need to be considered and appropriate techniques should be employed to minimize errors.

Know more about Precision here:
https://brainly.com/question/30461151

#SPJ8

The concentrations  Cu(NH3)42+ at equilibrium is  [Cu(NH3)42+] = 1.70 × 1013 * (0.0200M) * (0.300M)^4.

The concentrations  of Cu2+ is [Cu(NH3)42+] + [Cu2+]

The concentrations  of NH3 is 4[Cu(NH3)42+] + 4[NH3]

Equilibrium concentration is described as a state when the rate of forward reaction in a chemical reaction becomes equal to the rate of backward reaction.

The equilibrium constant expression for the formation of the complex ion Cu(NH3)42+ is:

Kf = [Cu(NH3)42+] / [Cu2+] * [NH3]^4

where [Cu(NH3)42+], [Cu2+], and [NH3] are the molar concentrations at equilibrium.

The initial concentrations of Cu2+ and NH3 are 0.0200 M and 0.300 M respectively.

We have that Kf = 1.70 × 1013, we then  rearrange the equation to solve for [Cu(NH3)42+]:

1.70 × 1013 = [Cu(NH3)42+] / (0.0200M) * (0.300M)^4

[Cu(NH3)42+] = 1.70 × 1013 * (0.0200M) * (0.300M)^4

Therefore at equilibrium, the concentration of Cu(NH3)42+ is [Cu(NH3)42+] = 1.70 × 1013 * (0.0200M) * (0.300M)^4

Learn more about Equilibrium concentration at: https://brainly.com/question/13414142

#SPJ1

The value of ΔG at 25 °C for the given reaction is: ΔG = -370.4 kJ/mol + 0 = -370.4 kJ/mol So, the correct answer is -370.4 kJ/mol

To determine the value of ΔG (Gibbs free energy) at 25 °C for the given reaction:

25 (s, rhombic) + 3/2 \(O_2\)(g) → \(2SO_3\)(g)

We can use the equation:

ΔG = ΔG° + RT ln(Q)

where:

ΔG is the standard Gibbs free energy change

ΔG° is the standard Gibbs free energy change under standard conditions

R is the gas constant (8.314 J/(mol·K) or 0.008314 kJ/(mol·K))

T is the temperature in Kelvin (25 °C = 298 K)

Q is the reaction quotient, which is the ratio of the concentrations of the products to the concentrations of the reactants at a given point during the reaction.

Given that ΔG° is -370.4 kJ/mol, we can plug the values into the equation:

ΔG = -370.4 kJ/mol + (0.008314 kJ/(mol·K) * 298 K) * ln(Q)

Now, we need to determine the value of Q. Since all reactants and products are in their standard states, Q = 1, as their concentrations are taken to be 1.

ΔG = -370.4 kJ/mol + (0.008314 kJ/(mol·K) * 298 K) * ln(1)

Since ln(1) = 0, the term (0.008314 kJ/(mol·K) * 298 K) * ln(1) becomes 0.

Therefore, the value of ΔG at 25 °C for the given reaction is:

ΔG = -370.4 kJ/mol + 0 = -370.4 kJ/mol

So, the correct answer is -370.4 kJ/mol.

For more such questions on reaction visit:

https://brainly.com/question/11231920

#SPj8

Based on the mole ratio, the maximum number of grams of NO that can be produced is 19.4 g.

The maximum number of grams of NO that can be produced is calculated from the equation of the reaction as follows:

Equation of the reaction: 4 NH₃ (g) + 5 O₂ (g) → 4 NO (g) + 6 H₂O(l)

Mole ratio of NH₃ and O₂₂is 4 : 5

moles of NH₃ = 15.9 / 17.03

moles of NH₃ = 0.9336 moles

moles of O₂ = 25.9 / 32

moles of NH₃ = 0.809 moles

the limiting reactant is O₂

Mass of NO produced = 0.809 * 4/5 * 30

Mass of NO produced = 19.4 g

Learn more about limiting reactants at: https://brainly.com/question/26905271

#SPJ1

Answer:

s+11r-15

Explanation:

It is likely that the temperature of the steam is higher than the temperature of the water boiling in the kettle. The intense heat felt by Alka from the puff of steam supports this observation.

In general, the temperature of steam produced from boiling water is higher than the temperature of the water itself. When water boils, it undergoes a phase change from a liquid to a gas, forming steam.

During this phase change, the water absorbs heat energy from the heat source, such as a stove or electric kettle, and converts it into the latent heat of vaporization.

The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at standard atmospheric pressure. At this temperature, the water molecules have enough energy to overcome the intermolecular forces and transition into the gaseous state.

However, steam is hotter than the boiling point of water because it contains additional heat energy in the form of latent heat. The heat energy absorbed during vaporization is stored as latent heat within the steam. As the steam gushes out of the spout of the kettle, it releases this latent heat energy, which can be felt as intense heat.

For more question on temperature click on

https://brainly.com/question/4735135

#SPJ11

This design should be able to capture all the necessary data for an online ordering system.

What is design?

Design is a creative process that uses a variety of strategies to solve problems and create meaningful solutions. It encompasses many disciplines such as architecture, engineering, graphic design, and product design. Designers collaborate with clients to understand their needs and goals, research their industry and competitors, and create innovative solutions that meet their objectives.

The database design should have the following tables:

Restaurants:

This table should contain all information about the restaurants, such as the restaurant ID, name, address, and type of food.

Clients:

This table should contain all information about the clients, such as the client ID, name, favorite restaurant, and credit card number.

Orders:

This table should contain all information about the orders, such as the order ID, the client, the restaurant, and the food item being purchased.

Foods:

This table should contain all information about the food, such as the food ID, the type of food, the name of the food, and the number of calories in the dish.

Order_Details:

This table should contain all the details of the orders, such as the order ID, the restaurant ID, the food ID, and the quantity of food ordered. This table will enable the same client to make orders from the same restaurant on different days, even if the orders are identical in terms of type of food.

This design should be able to capture all the necessary data for an online ordering system.

To learn more about design

https://brainly.com/question/30482408

#SPJ4

Answer:

a. 0.393M CH₃COOH.

b. 2.360% of acetic acid in the solution

Explanation:

The reaction of acetic acid (CH₃COOH) with NaOH is:

CH₃COOH + NaOH → CH₃COO⁻ + H₂O + Na⁺

That means 1 mole of acid reacts per mole of NaOH.

Moles of NaOH to reach the equivalence point are:

35.75mL = 0.03575L × (0.2750mol / L) = 9.831x10⁻³ moles of NaOH

As 1 mole of acid reacts per mole of NaOH, moles of CH₃COOH in the acid solution are 9.831x10⁻³ moles.

a. As the volume of the acetic acid solution is 25.00mL = 0.02500L, the molarity of the solution is:

9.831x10⁻³ moles / 0.02500L =

b. Molar mass of acetic acid is 60g/mol. The mass of 9.831x10⁻³ moles is:

9.831x10⁻³ moles ₓ (60g / mol) = 0.590g of CH₃COOH.

As volume of the solution is 25.00mL, the percentage of acetic acid is:

(0.590g CH₃COOH / 25.00mL) ₓ 100 =

The difference in the thermal energy of the water is 334,56 J. Thermodynamics and Heating The total energy of all the molecules that compose up anything is what is known as heat energy.

Heat is the energy that inevitably transfers from one body to another due to their disparate core temperatures. nonetheless, it is energy in action. Bond lengths and angles serve as the constant equilibrium geometries around which molecules continuously fluctuate due to rotational and vibrational motions. Pure substances are composed of molecules with a common geometrical structure. Heat is not a system's characteristic. We can use the formula Q = mcT to calculate the change in thermal energy.

Q = mc(T2 - t1)

Q = (1) 4.184 J/kg°C (80°C 20°C).

Q = 334.56 J

Learn more about heat energy here

https://brainly.com/question/15389227

#SPJ4

The complete question is-

calculate the change in heat for the 1kg water, with initial temperature as 80°C and final temperature as 20°C. show all calculations. (hint: you must use the heat energy equation here: heat energy

Answer:

C) Conservation of matter.

Explanation:

Stoichiometry is based on conservation of matter, that is, matter cannot be created or destroyed, it only changes, that's why a balanced chemical reaction has the same amount of each element in each side of the reaction (on the reactants side and on the products side).

The total number of moles of reactants and products in the chemical reaction given is 9 moles

The total number of mole of reactants and products in the chemical reaction can be obtained as follow:

2H₂S + 3O₂ -> 2H₂O + 2SO₂

The following were obtained from the above equation:

Total number of mole = Mole of reactants + mole of products

Total number of mole = 5 mole + 4 moles

Total number of mole = 9 moles

Thus, we can say that the total number of mole is 9 moles

Learn more about mole:

https://brainly.com/question/13314627

#SPJ1

The molecular clocks show the species that were diverged by evolution.

Scientists use the molecular clock of mutation to estimate the timing of evolutionary events and to infer the relationships between organisms. The molecular clock is based on the idea that mutations accumulate in DNA at a roughly constant rate over time, and that this rate can be used to estimate the time since two organisms diverged from a common ancestor.

To use the molecular clock, scientists first identify a gene or a set of genes that are present in both organisms and that are evolving slowly enough to be informative. They then compare the DNA sequences of these genes between the two organisms and calculate the number of differences or mutations that have accumulated over time.

Learn more about mutation:https://brainly.com/question/17130462

#SPJ1

The absorbed or released by a system is given by the following formula:

Where Q is the heat absorbed or released, m is the mass of the system, Cp is the specific heat and ΔT is the change in the temperature.

Let mA and mB be the mass of objects A and B, let CpA and CpB be the specific heats of objects A and B and let ΔTA and ΔTB be the specific heats of objects A and B. We will have that:

If the same amount of heat is applied to both object, we will have that:

Replace mA and CpA for their equivalences in terms of mB and CpB:

It means that the change in temperature of A is 1/6 of the change of temperature of B.

We need 17.2 g of sulfur to react with 30 g of iron to produce 40 g of iron (II) sulfide.

The balanced chemical equation for the reaction between iron and sulfur to form iron (II) sulfide is:

Fe + S → FeS

To determine the amount of sulfur required to produce 40 g of iron (II) sulfide from 30 g of iron, we need to use stoichiometry.

The molar mass of iron is 55.845 g/mol, and the molar mass of sulfur is 32.06 g/mol.

First, we need to calculate the number of moles of iron in 30 g:

30 g Fe / 55.845 g/mol = 0.537 mol Fe

Since the stoichiometric ratio of iron to sulfur is 1:1, the number of moles of sulfur required is also 0.537 mol.

Next, we can calculate the mass of sulfur needed:

0.537 mol S x 32.06 g/mol = 17.2 g S

Learn more about reactant mass here: https://brainly.com/question/19958395

#SPJ1

Answer:

72.3%

Explanation:

The following data were obtained from the question:

Theoretical yield of MgO = 3.43 g

Actual yield of MgO = 2.48g

Percentage yield of MgO =.?

Percentage yield of a reaction can simply be obtained by dividing the actual yield by the theoretical yield multiplied by 100. This is illustrated below:

Percentage yield = Actual yield /Theoretical yield × 100

Thus, we can obtain the percentage yield of MgO as follow:

Theoretical yield of MgO = 3.43 g

Actual yield of MgO = 2.48g

Percentage yield of MgO =.? Percentage yield = Actual yield /Theoretical yield × 100

Percentage yield = 2.48/3.43 × 100

Percentage yield = 72.3%

Therefore, the percentage yield of MgO is 72.3%.

At equilibrium, the HI concentration is 2.92 mol/L.

For the process H2(g)+CO2(g)updownarrow H2O+CO. at 1660 °C, the equilibrium constant KP is 4. In a 5 liter flask, 0.8 moles each of H2 and CO2 are first injected. Reactions occur in the following order with relation to H2: 1. In experiments 1 and 2, the reaction rate doubles when the initial concentration of H2 is doubled while the initial concentration of Cl2 is held constant.

H2(g) + I2(g) ⇌ 2HI(g)

c = [HI]² / [H2][I2]

At the specified temperature, c = 53.3, hence the following can be written:

53.3 = [HI]^2 / (0.400 mol/L) × (0.400 mol/L)

or, [HI]² = 53.3 × 0.16

or, [HI]² = 8.528

or, [HI] = sqrt(8.528) mol/L

or, [HI] = 2.92 mol/L

As a result, 2.92 mol/L of HI are present at equilibrium.

To know more about concentration visit:-

https://brainly.com/question/10725862

#SPJ1