1. What is the volume of a solution that has a density of 0.75 g/mL and a mass of 164 g?

The pressure of the substance from the problem we have here is  3.8 atm

The ideal gas equation, also known as the equation of state for an ideal gas, is given by:

PV = nRT

where P is the pressure of the gas, V is its volume, n is the number of moles of the gas, R is the ideal gas constant, and T is the absolute temperature of the gas.

This equation relates the pressure, volume, temperature, and amount of gas in a closed system assuming that the gas behaves as an ideal gas.

We know that;

PV = nRT

P = nRT/V

P = 0.3 * 0.082 * 313/2

p = 3.8 atm

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Answer:

Burning of wood is chemical change

Dry ice into Carbon dioxide conversion is physical change.

Explanation:

Because when wood is burnt it cannot be recovered back by tthe ashes. So it is chemical change.

Dry ice conversion into Carbon dioxide is a physical change because the chemical composition remains same.

Answer:

wood = chemical

dry ice = physical

Explanation:

At equilibrium, the pressure of each component in the reaction must be equal to the partial pressure of the component (pH2S = 0.225 atm, pH2 = pS = 0.819 x 0.225 atm = 0.182975 atm).

Equilibrium is a state of balance between opposing forces. It refers to a state in which opposing forces or influences are balanced and in equilibrium with one another. This idea is used in many different areas, from economics to physics. In economics, equilibrium is a state in which market supply and demand are balanced and in relative stability, and prices remain relatively constant. In physics, equilibrium is a state in which all forces acting on a body cancel each other out, leading to a state of rest or motionlessness. In both cases, equilibrium represents a stable state, and any changes to the system will disrupt it.

The total pressure in the container at equilibrium is then equal to the sum of the partial pressures of each component, which is 0.225 + 0.182975 + 0.182975 = 0.59095 atm.

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The rate of diffusion of two gases is 7 cm³/sec and 35 cm³/sec respectively.

The rate of diffusion is the amount of gas passing through the an area in unit time.

The diffusion rate depends on several factors:

Given,

Volume of first gas = 280 cm³

Time of first gas = 40 seconds

Volume of second gas = 350 cm³

Rime of second gas = 10 seconds

Rate of diffusion = volume of gas diffused ÷ time

Rate for first gas = 280 ÷ 40

                            = 7 cm³/sec

Rate of second gas = 350 ÷ 10

                                 =  35 cm³/sec

Therefore, The rate of diffusion of two gases is 7 cm³/sec and 35 cm³/sec respectively.

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Answer:

The kinetic molecular theory explains the movement of molecules within gases.

Explanation:

Answer:

The intermolecular forces increase in the following order:

C2H6 < CH4 < CH3F < NH3

The reasoning behind this order is as follows:

C2H6 (ethane) is a nonpolar molecule with only dispersion forces, which are the weakest intermolecular forces.

CH4 (methane) is also nonpolar and only has dispersion forces, but it has a slightly larger molecular weight than ethane, which leads to stronger dispersion forces.

CH3F (fluoromethane) is polar and has dipole-dipole forces in addition to dispersion forces. The dipole-dipole forces are stronger than the dispersion forces in this case.

NH3 (ammonia) is also polar and has hydrogen bonding, which is a stronger type of dipole-dipole force.

Explanation:

5. 4.00 moles of O2 can react to produce 4.00 moles of CO2.

What is the relationship between moles of O2 and moles of CO2?

According to the balanced chemical equation, the ratio of moles of O2 to moles of CO2 is 2:1, which means that 4 moles of O2 would react with 2 moles of CH4 to produce 2 moles of CO2. Therefore, statement 5 is true.

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Thus, in order to make 0.075 mol of water, 0.0375 moles or ammonium perchlorate are required.

Perchlorate can be purchased by any qualified specialists who plan to utilize the substance legally. Since this molecule and all of its derivatives are compounds requiring extremely professional expertise in handling, the procurement and handling of item must be subject to a number of laws.

An odorless, white, dust powder known as ammonium perchlorate. As an etching and etching agent, it is employed in analytical chemistry. Moreover, it is utilized in explosives and for animal fattening. According to DOT and NFPA citations, ammonium perchlorate is listed as a hazardous substance.

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Answer:

Below

Explanation:

For Carbon:

40.002 % * 180.156   = 72.066 gm/mole C     per mole of fructose

For Hydrogen:

6.714 %  * 180.156     = 12.096  gm H

For Oxygen:

53.285% *  180.156  = 95.966 gm of O

Now use periodic table to find mole wts of each

   72.066 / 12.011   = 6    moles of C per mole of fructose   ( wt = 12.011)

   12.096/ 1.008    =  12   moles of  H                                     (wt = 1.008)

    95.966/15.999 = 6     moles of O                                      (wt = 15.999)

C6 H12 O6     is MOLECULAR formula     divide everything by 6

C H2 O     is EMPIRICAL

In the given options, there are some characteristics of behavior is given. The one which is not the characteristic of a behavior is "it can be recorded", b is correct.

There are some actions and manners that are shown by humans or animals. It is induced by stimuli or inputs from the environment whether internal or external, conscious or subconscious, overt or covert, and voluntary or involuntary. For example -

When suddenly a person meets his or her relative then how that person reacts, whether he or she shows good manners or ignore them is part of their behavior.

Therefore, in the given options, there are some characteristics of behavior is given. The one which is not the characteristic of a behavior is "it can be recorded", b is correct.

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Answer:

Explanation:

For NaOH:

Molarity = moles of solute / liters of solution

Molality = moles of solute / mass of solvent (in kg)

Normality = equivalents of solute / liters of solution

First, we need to find the moles of NaOH:

moles of NaOH = mass of NaOH / molar mass of NaOH

moles of NaOH = 20 g / 40 g/mol

moles of NaOH = 0.5 mol

Next, we need to find the liters of solution:

liters of solution = 600 mL / 1000 mL/L

liters of solution = 0.6 L

Now we can calculate the molarity:

Molarity = 0.5 mol / 0.6 L

Molarity = 0.833 M

To find the molality, we need to find the mass of the solvent (water) in kg:

mass of solvent = volume of solution x density of solvent

mass of solvent = 0.6 L x 1.10 g/mL

mass of solvent = 0.66 kg

Now we can calculate the molality:

Molality = 0.5 mol / 0.66 kg

Molality = 0.758 mol/kg

Finally, to find the normality, we need to know that NaOH is a monoprotic base (i.e. donates one H+ ion per molecule). Therefore, the equivalents of NaOH is equal to the moles of NaOH:

Normality = 0.5 eq / 0.6 L

Normality = 0.833 eq/L

For Ba(OH)2:

Molarity = moles of solute / liters of solution

Molality = moles of solute / mass of solvent (in kg)

Normality = equivalents of solute / liters of solution

First, we need to find the moles of Ba(OH)2:

moles of Ba(OH)2 = mass of Ba(OH)2 / molar mass of Ba(OH)2

moles of Ba(OH)2 = 50 g / (137.33 g/mol x 2)

moles of Ba(OH)2 = 0.182 mol

Next, we need to find the liters of solution:

liters of solution = 800 mL / 1000 mL/L

liters of solution = 0.8 L

Now we can calculate the molarity:

Molarity = 0.182 mol / 0.8 L

Molarity = 0.227 M

To find the molality, we need to find the mass of the solvent (water) in kg:

mass of solvent = volume of solution x density of solvent

mass of solvent = 0.8 L x 1.15 g/mL

mass of solvent = 0.92 kg

Now we can calculate the molality:

Molality = 0.182 mol / 0.92 kg

Molality = 0.198 mol/kg

Finally, to find the normality, we need to know that Ba(OH)2 is a diprotic base (i.e. donates two H+ ions per molecule). Therefore, the equivalents of Ba(OH)2 is twice the moles of Ba(OH)2:

Normality = 0.364 eq / 0.8 L

Normality = 0.455 eq/L

Molarity of H3PO4:

First, calculate the number of moles of H3PO4:

m(H3PO4) = 40 g

Molecular weight of H3PO4 = 3(1.01) + 1.01 + 4(16) = 98 g/mol

n(H3PO4) = m(H3PO4) / M(H3PO4) = 40 g / 98 g/mol = 0.4082 mol

Now, calculate the volume of the solution in liters:

V = 900 mL = 0.9 L

Molarity (M) = n / V = 0.4082 mol / 0.9 L = 0.4536 M

Molality of H3PO4:

Mass of solvent (water) = (900 mL) x (1.30 g/mL) - 40 g = 1040 g

Molality (m) = n(H3PO4) / m(solvent) = 0.4082 mol / 1.040 kg = 0.3929 m

Normality of H3PO4:

H3PO4 is a triprotic acid, meaning that it can donate up to three protons (H+ ions) per molecule. The normality of H3PO4 depends on which proton(s) we are interested in. Here, we will calculate the normality with respect to the first proton.

One mole of H3PO4 can donate three moles of H+ ions, so the equivalent weight (the weight that can donate one mole of H+ ions) of H3PO4 is its molecular weight divided by three:

Equiv. Wt. = 98 g/mol / 3 = 32.67 g/mol

Normality (N) = Molarity x Number of H+ ions donated per molecule / Equivalent weight

For the first proton, the number of H+ ions donated per molecule is 1. Therefore:

N = 0.4536 M x 1 / 32.67 g/mol = 0.01388 N

First, we need to calculate the number of moles of Na2CO3:

Molar mass of Na2CO3 = 2(23) + 12 + 3(16) = 106 g/mol

Number of moles of Na2CO3 = mass/molar mass = 25 g / 106 g/mol = 0.235 moles

Next, we can calculate the molarity, molality and normality using the following formulas:

Molarity = moles of solute / liters of solution

Molarity = 0.235 moles / 1 L = 0.235 M

Molality = moles of solute / mass of solvent (in kg)

Density of solution = 1.05 g/mL = 1050 kg/m³

Volume of solution = 1000 mL = 1 L

Mass of solvent = volume of solution x density of solution = 1 L x 1050 kg/m³ = 1050 g = 1.05 kg

Molality = 0.235 moles / 1.05 kg = 0.224 mol/kg

Normality = (moles of solute x equivalent weight) / liters of solution

The equivalent weight of Na2CO3 is equal to its molar mass divided by the number of hydrogen ions it can donate in a reaction, which is 2.

Equivalent weight of Na2CO3 = molar mass / 2 = 106 g/mol / 2 = 53 g/eq

Normality = (0.235 moles x 53 g/eq) / 1 L = 12.455 N

The experimental yield is 2.9 g, the theoretical yield is 2.96 g, and the percent yield is 97.97%.

How to find the experimental yield, theoretical yield and Percent yield?

To find the experimental yield, we need to determine the weight of copper chloride (CuCl) obtained from the reaction. We can calculate this by subtracting the weight of the watch glass and filter paper from the weight of the watch glass, filter paper, and CuCl precipitate:

Weight of CuCl = (Weight of Watch Glass + Filter Paper + CuCl Precipitate) - (Weight of Watch Glass and Filter Paper)

Weight of CuCl = 13.4 g - 10.5 g

Weight of CuCl = 2.9 g

To find the theoretical yield, we need to calculate the amount of copper that should be produced based on the reaction stoichiometry. The balanced chemical equation for the reaction between copper and nitric acid is:

Cu + 4HNO3 → Cu(NO3)2 + 2NO2 + 2H2O

From the equation, we can see that one mole of copper reacts with four moles of nitric acid to produce one mole of copper(II) nitrate (Cu(NO3)2). The molar mass of copper is 63.55 g/mol, so the amount of copper used in the reaction is:

Amount of Cu = Weight of Cu / Molar mass of Cu

Amount of Cu = 1.034 g / 63.55 g/mol

Amount of Cu = 0.016 mol

Since one mole of copper produces one mole of copper(II) nitrate, the theoretical yield of copper(II) nitrate is also 0.016 mol.

The theoretical yield of copper(II) nitrate is:

Theoretical yield = Amount of Cu(NO3)2 x Molar mass of Cu(NO3)2

Theoretical yield = 0.016 mol x 187.57 g/mol

Theoretical yield = 2.96 g

Finally, we can calculate the percent yield using the formula:

Percent yield = (Experimental yield / Theoretical yield) x 100%

Plugging in the values we calculated, we get:

Percent yield = (2.9 g / 2.96 g) x 100%

Percent yield = 97.97%

Therefore, the experimental yield is 2.9 g, the theoretical yield is 2.96 g, and the percent yield is 97.97%.

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Answer:

Explanation:

The balanced chemical equation for the reaction between sulfuric acid and calcium hydroxide is:

H2SO4 + Ca(OH)2 → CaSO4 + 2H2O

This reaction is a double displacement reaction, also known as a precipitation reaction. The sulfuric acid reacts with the calcium hydroxide to form calcium sulfate (a precipitate) and water. The balanced equation shows that one molecule of sulfuric acid reacts with one molecule of calcium hydroxide to form one molecule of calcium sulfate and two molecules of water.

The final temperature of the water is 100°C - 63.4°C = 36.6°C. Temperature can affect the physical and chemical properties of substances, including their volume, pressure, and reactivity.

What is Temperature?

Temperature is a measure of the average kinetic energy of the particles in a substance. In other words, it is a measure of how hot or cold a substance is. Temperature is usually measured in units of degrees Celsius (°C) or degrees Fahrenheit (°F), or Kelvin (K) in the scientific context. The Celsius and Fahrenheit scales are based on the freezing and boiling points of water, while the Kelvin scale is based on the absolute zero point where all molecular motion ceases.

q = m·C·ΔT

where q is the heat transferred, m is the mass of the substance, C is the specific heat capacity, and ΔT is the change in temperature.

First, we need to determine the initial temperature of the water. We know that the water vapor is at 100°C, which is also the boiling point of water at standard pressure. Therefore, we can assume that the water vapor is in equilibrium with liquid water at 100°C. The heat required to convert 55.0 g of water at 100°C into water vapor at 100°C can be calculated as follows:

q1 = m·ΔHv

q1 = 55.0 g · 2257 J/g = 124,135 J

This means that 124,135 J of heat were absorbed by the water to vaporize it at 100°C.

Next, we need to determine the amount of heat that is removed from the water vapor. We know that 144 kJ of energy were removed from the water vapor. This can be converted to joules as follows:

q2 = 144 kJ · 1000 J/kJ = 144,000 J

Now, we can use the equation to find the final temperature of the water:

q1 + q2 = m·C·ΔT

where ΔT is the change in temperature, which is what we want to find.

First, we need to determine the total mass of the water vapor and liquid water:

m = 55.0 g + 124,135 J / 2257 J/g = 108.3 g

Next, we need to determine the specific heat capacity of water at constant pressure. This is approximately 4.18 J/g·°C.

Now we can substitute these values into the equation and solve for ΔT:

144,135 J + 144,000 J = 108.3 g · 4.18 J/g·°C · ΔT

ΔT = (144,135 J + 144,000 J) / (108.3 g · 4.18 J/g·°C) = 63.4°C

Therefore, the final temperature of the water is 100°C - 63.4°C = 36.6°C.

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Answer:

36 tabs

Explanation:

Bid is 2 times per day

2 tablets tid is 6 tablets a day

In 3 days, that is 18 tablets

2 tabs bid for 3days is 4x3 =12 tablets

1 tab daily for 3 days = 3 tablets

1 tab every other day, 3 doses is 3 tab

Add all. 18+12+3+3

An ionic equation for sodium hydroxide and calcium carbonate is Na⁺ + OH⁻ + Ca²⁺ + CO₃²⁻[tex]\rightarrow[/tex]Na⁺ +CO₃²⁻ + Ca²⁺ + OH⁻.

Ionic equation is defined as a chemical equation which represents electrolytes in aqueous solutions and are expressed as dissociated ions. Ions present in aqueous solutions are stabilized by ion dipole interactions with the water molecules which are present.

An ionic equation can be written for any electrolyte which dissociates and reacts with the polar solvent. In a balanced ionic equation , number and type of atoms on each sides of reaction arrow are same. Even the net charge on both sides of the arrow is same.

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Answer:

The first step is to convert the given mass of HCl to moles:

moles of HCl = mass of HCl / molar mass of HCl

moles of HCl = 7.68 g / 36.46 g/mol

moles of HCl = 0.2103 mol

Next, we need to convert the given volume of solution to liters:

volume of solution = 253 mL = 0.253 L

Now we can calculate the molarity of the solution:

molarity = moles of solute / volume of solution

molarity = 0.2103 mol / 0.253 L

molarity = 0.831 M

Therefore, the molarity of the HCl solution is 0.831 M.

Explanation:

Answer: dont get it

Explanation:

Answer:

At the top of a seamount, the temperature is generally cooler and the pressure is lower compared to the bottom of a trench. This is because the its closer to the ocean surface, where sunlight and atmospheric conditions can affect the temperature and pressure.

The bottom of a trench is located at a much greater depth and is subject to extreme pressure and temperatures. The temperature at the bottom of a trench can be very high due to the heat generated by tectonic activity and volcanic processes.

Explanation:

The correct answer is option c ΔH = -23.7 kJ/mol and AE = 10.3 kJ/mol

What is catalyst?

A catalyst is a substance that increases the rate of a chemical reaction by lowering the activation energy required for the reaction to occur, without undergoing any permanent chemical change itself. Catalysts work by providing an alternative pathway for the reaction that has a lower activation energy, allowing more reactant molecules to participate in the reaction and increasing the rate of product formation. Catalysts are widely used in industrial processes to increase the efficiency of chemical reactions and reduce the amount of energy required to produce a given amount of product. Some common examples of catalysts include enzymes in biological systems, transition metals such as platinum and palladium used in catalytic converters in cars, and acid or base catalysts used in the production of many chemicals.

Due to this, The activation energy (AE) is the minimum energy required to initiate a chemical reaction, and a catalyst can lower the activation energy required for a reaction to occur. However, a catalyst does not change the overall energy difference between the reactants and products (ΔH) of the reaction. Therefore, the only possible value for ΔH in the presence of a catalyst is still -23.7 kJ/mol.

Of the given answer choices, only ΔH = -23.7 kJ/mol and AE = 10.3 kJ/mol is a possible combination . The activation energy can be lowered to any value less than the original value of 27.9 kJ/mol, but it cannot be increased. Therefore, only the lower value of AE = 10.3 kJ/mol is a possible value in the presence of a catalyst.

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Explanation:

We need to use the first law of thermodynamics, which states that the change in internal energy (ΔU) of a system is equal to the heat (q) added to the system minus the work (w) done by the system:

ΔU = q - w

First, we need to convert the units of work from kcal to kJ:

375 kcal × 4.184 J/kcal = 1570.5 J = 1.5705 kJ

Now we can plug in the values we have:

ΔU = (5.00×10² kJ) - (1.5705 kJ)

ΔU = 498.4295 kJ

Therefore, the change in internal energy of the system is ΔU = 498.4295 kJ.

The pressure at the final temperature can be determined using Gay- Lussacs law. The pressure will increases to 1692 kPa when the temperature increases to 54 degree Celsius.

Gay -Lussacs law states that, at constant volume of a gas, the pressure of the gas is directly proportional to the temperature.

hence,

P/T = constant.

For two different pressure and temperature,

P1/T1 = P2/T2

Given,

P1 = 846 Kpa

T1 = 27 °C

T2 = 54 °C.

Then,

P2 = P1 T2/T1

     =  846 Kpa ×  54 °C / 27 °C

     = 1692 kpa.

Therefore, the final pressure of the gas in the cylinder is 1692 kpa.

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If the pressure of a gas in a cylinder at 27.0 ⁰C is 846 kPa. Then from Gay-Lussac's Law, we can calculate the pressure in the cylinder when the temperature is increased to 54.0 ⁰C IS  922.1kPa. The correct option is A.

Gay-Lussac's Law, also known as the Pressure-Temperature Law.

It is a gas law that states that, at constant volume, the pressure of a gas is directly proportional to its absolute temperature. This means that as the temperature of a gas increases, its pressure also increases, and as the temperature of a gas decreases, its pressure also decreases, as long as the volume remains constant.

Mathematically, Gay-Lussac's Law can be expressed as:

P₁/T₁= P₂/T₂

Where

P₁ and T₁  = are the initial pressure and temperature,

P₂and T₂  = the final pressure and temperature,

This relationship is important in many practical applications, such as in the design of internal combustion engines and in the study of weather patterns. Gay-Lussac's Law is named after the French chemist Joseph Louis Gay-Lussac, who first discovered this relationship in 1802.

Here in the question,

We can use the following formula to solve this problem:

P₁/T₁= P₂/T₂

Where

P₁ and T₁  = are the initial pressure and temperature,

P₂and T₂  = the final pressure and temperature,

Plugging in the given values, we get:

P₁ = 846 kPa

T₁  = 27.0 ⁰C + 273.15 = 300.15 K

T₂ = 54.0 ⁰C + 273.15 = 327.15 K

Solving for P₂, we get:

P₂= P₁x (T₂/T₁ ) = 846 kPa x (327.15 K/300.15 K) ≈ 922.1 kPa

Therefore, the answer is A. 922.1 kPa.

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Rounding to three significant figures, potassium chlorate makes up 55.0% of the mixture by mass.

2 KClO3(s) → 2 KCl(s) + 3 O2(g)

2.04 g O2 × (1 mol O2 / 32.00 g O2) = 0.06375 mol O2

We can determine the quantity of KClO3 in the sample by calculating the amount of O2 produced by 2 moles of KClO3:

0.04250 mol KClO3 = 0.06375 mol O2 (2 mol KClO3 / 3 mol O2)

Percent by mass of KClO3 = (0.04250 mol KClO3 × 122.55 g/mol KClO3) / 9.51 g × 100% = 55.0%

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The exponent to the power of 0 would be the correct answer in this situation.

Initial rate is the rate of reaction at the beginning of a chemical reaction. It is usually measured at the start of the reaction and is usually higher than the rate at equilibrium. The initial rate is an important factor in determining the rate of reaction and the products of the reaction. It can be used to determine the effects of various factors such as temperature, pressure, and concentration on the reaction rate.

Exponents represent the number of times the base number is multiplied by itself. So, if the rate does not double nor stay the same, then it is not being multiplied by itself, so the exponent would be to the power of 0.

Exponentiation can be used to show how many times a number is multiplied by itself, and this is done by raising the base number to a certain power. For example, 4 to the power of 3 means 4 x 4 x 4 = 64. In this case, the exponent is 3.

If the initial rate does not double nor stay the same, then the power associated with the exponent would be 0. This is because the rate is not being multiplied by itself, so it would not be associated with any power. Therefore, the exponent would be to the power of 0.

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The reaction is classified as a double displacement or metathesis reaction.

A double displacement reaction is a type of chemical reaction in which two reactants exchange ions or compounds to form new products.

During this reaction, the positive and negative ions of two compounds switch places, resulting in the formation of two new compounds. A common example of a double displacement reaction is the reaction between silver nitrate and sodium chloride, which forms silver chloride and sodium nitrate.

Double displacement reactions are also known as metathesis reactions or exchange reactions.

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Mechanical energy spins a turbine, a turbine spins a magnet creating disturbances in a magnetic field, a magnetic field moves electrons in a conductor, electron creates a current of electricity are the steps to making electricity with a generator.

What is electric field ?

According to mathematics, the electric field is described as a vector field that may be connected to each point in space and represents the force per unit charge that is applied to a positive test charge that is at rest at that location. Either the electric charge or time-varying magnetic fields can produce an electric field.

What is energy?

The capacity to work comes from energy. Energy types include chemical, nuclear, and electrical energy. Science and engineering both depend on the idea of energy. Here is a look at the classification of energy as well as its description and examples.

Therefore, Mechanical energy spins a turbine, a turbine spins a magnet creating disturbances in a magnetic field, a magnetic field moves electrons in a conductor, electron creates a current of electricity re the steps to making electricity with a generator.

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Answer:

The correct order of the steps to making electricity with a generator is:

First, mechanical energy is used to spin a turbine, which is typically connected to a magnet. As the turbine spins the magnet, it creates disturbances in a magnetic field. These disturbances then cause the magnetic field to move electrons in a nearby conductor, such as a wire. This movement of electrons creates a flow of electrical current through the wire, which can be used to power various devices. Therefore, the final step is the production of electricity, as electrons flow through the conductor and create a current of electricity.

A chemical reaction is started by adding the borax solution to the glue mixture. A elastic, springy new material is produced when the glue and borax molecules interact.

Although cleaning is borax's most well-known application, the substance is also included in a wide range of home goods, such as specialty toothpastes and mouthwashes. goods for treating acne, including lotions, skin creams, moisturizers, and sunscreen. Ceramic glaze and paint.

Borax (sodium tetraborate) is different from baking soda (sodium bicarbonate). Both salts and widely used as "green" home cleaners, baking soda and borax have pH values of 8 and 9.5, respectively.

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Therefore, the volume of the balloon will be 8.7 L when taken outside at a temperature of 2 degrees Celsius.

Volume is a measure of the amount of space occupied by a three-dimensional object or substance. It is usually measured in cubic units, such as liters, cubic meters, or cubic feet. Volume can be calculated by multiplying the length, width, and height of an object (in the case of regular-shaped objects), or by using mathematical formulas or measurements of displacement (in the case of irregular-shaped objects or substances). Volume is an important concept in physics, chemistry, and engineering, as it is used to describe the behavior of gases, liquids, and solids, as well as the properties of various materials and substances.

Here,

To solve this problem, we can use the ideal gas law, which states that PV = nRT, where P is the pressure of the gas, V is its volume, n is the number of moles of gas, R is the gas constant, and T is the temperature of the gas in Kelvin.

To find the final volume of the balloon, we need to assume that the pressure and the number of moles of gas remain constant. Therefore, we can write:

P1V1/T1 = P2V2/T2

where P1 is the pressure at the initial temperature, T1 is the initial temperature in Kelvin, P2 is the pressure at the outdoor temperature, which we assume is the same as the initial pressure, and T2 is the outdoor temperature in Kelvin.

To convert Celsius to Kelvin, we add 273.15 to the Celsius temperature. Therefore, T1 = 24 + 273.15 = 297.15 K and T2 = 2 + 273.15 = 275.15 K.

Substituting the values into the equation, we get:

V2 = (P1/T1) x T2 x V1/P2

= (1 atm / 297.15 K) x 275.15 K x 9.2 L / (1 atm)

= 8.7 L (rounded to the nearest tenth)

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The balanced chemical equation for the reaction is: Fe(s) + 2CuCl2(aq) → 2FeCl3(aq) + Cu(s)

The equation shows that one mole of solid iron reacts with two moles of aqueous copper(II) chloride to produce two moles of aqueous iron(III) chloride and one mole of solid copper.

To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. Here's how we balance the equation:

Fe(s) + 2CuCl2(aq) → 2FeCl3(aq) + Cu(s)

On the left-hand side, we have one iron atom (Fe) and two copper atoms (Cu). On the right-hand side, we have two iron atoms (Fe) and one copper atom (Cu). To balance the iron atoms, we add a coefficient of 2 in front of Fe(s) on the left-hand side:

2Fe(s) + 2CuCl2(aq) → 2FeCl3(aq) + Cu(s)

Now we have two iron atoms on both sides. However, we also have four chloride ions (Cl-) on the left-hand side and six chloride ions on the right-hand side. To balance the chloride ions, we add a coefficient of 3 in front of CuCl2(aq) on the left-hand side:

2Fe(s) + 3CuCl2(aq) → 2FeCl3(aq) + Cu(s)

Now we have two iron atoms, six chloride ions, two copper ions (Cu2+), and one copper atom on both sides. The equation is balanced!

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