Which of the following is not characteristic of a behavior?
a. It can be observed.
b.
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C. It can be influenced by the environment.
d. It can include a person's thoughts.
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Taking into account the ideal gas law, there are 182.93 moles of gas in a 15 L scuba canister if the temperature of the canister is 200 K and the pressure is 200 atm.

An ideal gas is called a hypothetical or theoretical gas, which is composed of particles that move randomly and without interacting with each other.

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law. This equation relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar gas constant:

P×V = n×R×T

You know:

Replacing in the ideal gas law:

200 atm× 15 L = n× 0.082 (atmL)÷(molK)× 200 K

Solving:

(200 atm× 15 L) ÷ (0.082 (atmL)÷(molK)× 200 K)= n

182.93 moles= n

Finallt, there are 182.93 moles of gas.

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Answer:

3

Explanation:

Answer:

2 moles of H3PO4 reacts with 3 moles of FeBr2

Explanation:

Hope this helps :)

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.

Answer:

The experiment tested the pH levels of various substances by using universal indicator and observing the color change. The hypothesis was that substances with a pH closer to 7 would require smaller amounts of indicator for a color change compared to substances with more extreme pH levels. The data collected supported this hypothesis, as substances with pH closer to 7 required smaller amounts of indicator. This indicates that the strength of the acid or base affects the amount of indicator needed for a color change. In the final step of the experiment, the universal indicator was added to a substance until the color stabilized, indicating the pH level. The final color observed indicates the pH level of the substance. While this experiment is useful in determining the approximate pH level of a substance, it cannot determine a specific pH. Acid and base indicators are important as they allow us to determine the pH level of a substance, which can be useful in everyday life, such as in pool maintenance or testing the acidity of soil for gardening.

Explanation:

Answer:

1) The pressure is 26.4 torr

2) The time is 24.4 s

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more simpler substances. In other words, it is the opposite of a synthesis reaction, where two or more substances combine to form a more complex substance.

We know that;

[tex]lnPt =lnPo - kt\\lnPt = ln(450) - ( 4.5 x 10^-2 * 63)\\Pt = eln(450) - ( 4.5 x 10^-2 * 63)\\Pt = 26.4 torrln[1/3(450)] = ln 450 - (4.5 x 10^-2t)\\5 = 6.1 - 0.045t\\5 - 6.1 = - 0.045t\\t = 24.4 s[/tex]

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There are approximately 1.39 × 10²³ oxygen molecules in the balloon.

Oxygen is colorless, odorless and tasteless gas and it supports life. It is noncombustible but actively supports the burning of combustible materials.

To calculate number of oxygen molecules in the balloon, we use the Avogadro's number, which is equal to 6.022 × 10²³ molecules per mole of substance.

As moles of oxygen gas = mass of oxygen gas / molar mass of oxygen gas

moles of oxygen gas = 7.36 g / 32 g/mol

So, moles of oxygen gas = 0.23 mol

Now we use the Avogadro's number to calculate number of oxygen molecules in the balloon:

As number of oxygen molecules = moles of oxygen gas × Avogadro's number

number of oxygen molecules = 0.23 mol × 6.022 × 10²³  molecules/mol

number of oxygen molecules = 1.39 × 10²³  molecules

Therefore, there are approximately 1.39 × 10²³  oxygen molecules in the balloon.

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The frequency is used to measure the number of waves that pass through a fixed point in a certain amount of time. That is option B.

A wave is defined as a disturbance in a medium that travel from a point to another in an organised fashion.

There are different properties of a wave that include the following:

The frequency of a wave is defined as the property of a wave that shows the the number of crests (high points) of waves that pass the fixed point in a given number of time.

Therefore, frequency of a wave measures the number of waves that pass through a fixed point in a certain amount of time.

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Wave frequency measures the waves that pass through a fixed point in a certain amount of time (option B)

Frequency of a wave is defined as the number of complete oscillations, vibrations or waves made in 1 second. This is written formula:

Frequency (f) = Number of oscillation (n) / time (s)

f = n / t

The SI unit of wave frequency is Hertz.

Wave frequency is related to speed of wave and wavelength according to the following formula:

Velocity (v) = wavelength (λ) × frequency (f)

v = λf

Wave frequency is also related to the period of a wave according to the following formula:

Frequency (f) = 1 / Period (T)

f = 1 / T

With the above information about wave frequency, we can conclude that the correct answer to the question is option B

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Answer:

we can use the ideal gas law equation:

PV = nRT

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

First, we can find the total number of moles of gas in the container:

n(total) = n(A) + n(B)

To find the number of moles of each gas, we can use the partial pressures and the total pressure:

P(A) / P(total) = n(A) / n(total)

P(B) / P(total) = n(B) / n(total)

We can rearrange these equations to solve for n(A) and n(B):

n(A) = P(A) / P(total) × n(total)

n(B) = P(B) / P(total) × n(total)

We know that the partial pressures of gas A and gas B are 0.264 atm and 0.548 atm, respectively, and we can find the total pressure by adding these partial pressures:

P(total) = P(A) + P(B) = 0.264 atm + 0.548 atm = 0.812 atm

We can also find the total number of moles of gas in the container:

n(total) = PV / RT = (0.812 atm) × (9.10 L) / (0.08206 L·atm/mol·K × 316 K) = 0.286 mol

Now we can add 0.130 mol of a third gas, which gives us a new total number of moles of gas:

n(new) = n(total) + 0.130 mol = 0.286 mol + 0.130 mol = 0.416 mol

Since there is no change in volume or temperature, the new total pressure will be proportional to the total number of moles of gas:

P(new) = P(total) × n(new) / n(total) = (0.812 atm) × (0.416 mol) / (0.286 mol) = 1.18 atm

Therefore, the total pressure will become 1.18 atm.

The complete and balanced reaction equation is: CuSO3(s) -> CuO(s) + SO2(g)

The reaction between HCI (hydrochloric acid) and CuSO3 (copper(II) sulfite) is not a valid chemical equation.

Copper(II) sulfite is not a stable compound, and it decomposes readily in air to form copper(II) oxide (CuO) and sulfur dioxide (SO2) according to the following equation:

CuSO3(s) -> CuO(s) + SO2(g)

The balanced equation for this reaction is: https://brainly.com/question/14258973

CuSO3(s) -> CuO(s) + SO2(g)

The gas formed in this reaction is sulfur dioxide (SO2).

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Answer:

Explanation:The statement that is true about dilute and concentrated solutions is: Dilute solutions have a higher solvent-to-solute ratio than concentrated solutions.

Explanation:

In dilute solutions, the amount of solute is relatively low compared to the amount of solvent. Conversely, in concentrated solutions, the amount of solute is relatively high compared to the amount of solvent.

For example, if you add a teaspoon of sugar to a cup of water, you have a dilute solution. If you add five teaspoons of sugar to the same cup of water, you have a concentrated solution.

So, the correct statement is that dilute solutions have a higher solvent-to-solute ratio than concentrated solutions.

Answer:

The rearrangement of atoms is a chemical change.

Explanation:

Answer: None of the above

Explanation:

It takes approximately 193 g of sodium bromide to make 2.50 litres of 0.750 M NaBr solution.

A substance's molar mass is the mass of one mole. It's measured in grammes per mole (g/mol). The molar mass of an element is equal to its atomic weight in atomic mass units (amu), but the molar mass of a compound is the sum of all the atomic weights in the compound represented in grammes. The idea of molar mass is significant in chemistry because it allows us to convert between mass, moles, and the number of particles in a substance.

We can use the following formula to calculate the mass of sodium bromide required to make the given solution:

mass = moles x molar mass

First, we need to calculate the number of moles of sodium bromide needed:

moles = Molarity x volume

moles = 0.750 mol/L x 2.50 L

moles = 1.875 mol

Next, we need to determine the molar mass of NaBr:

NaBr = 22.99 g/mol + 79.90 g/mol

NaBr = 102.89 g/mol

Finally, we can calculate the mass of NaBr needed:

mass = moles x molar mass

mass = 1.875 mol x 102.89 g/mol

mass = 192.92 g

Therefore, the mass of sodium bromide needed to prepare 2.50 liters of a 0.750 M NaBr solution is approximately 193 g (option C).

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The amount of ions is caculated by, the formula of follows [tex]$$c=M \times V$$[/tex][tex]$C$[/tex] is the amount [tex]$M$[/tex] is the molarity and[tex]$V$[/tex] is the volume.

In the chemical reaction, the reaction bate is the change in concentration of reactant per unit time. The time for a reaction is calculated by the formula of fallers.

Convey the volume from  [tex]$m L$ to $L$[/tex] by the conversion factor as follows

[tex]\begin{aligned}1 \mathrm{~mL} & =10^{-3} \mathrm{~L} \\1.80 \times 10^{-10} \mathrm{~mL} & =1.80 \times 10^{-10} \mathrm{mc} \times \frac{10^{-3}}{1 \mathrm{~mL}} \\& =1.80 \times 10^{-13} \mathrm{~mL}\end{aligned}[/tex]

Calculate the time by the eq [tex]$83.464 \times 10^7$[/tex]Io runt, of

[tex]$$\begin{aligned}t & =\frac{83.464 \times 10^7 \mathrm{Na}^{-1} \text { ions }}{5.0 \times 10^7 \mathrm{Na}^{-1} \text { io ry / chanel } \mathrm{s}} \\& =16.69 \text { chanel }-\mathrm{s}\end{aligned}$$[/tex]

The time required is 16.69chanel-s

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Answer:

35.4g

Explanation:

Na = 23 g/mol

NaN3 = 23 + 3(14) = 65 g/mol

2NaN3 -> 3N2 + 2Na

=> 2 moles of NaN3 will produce 2 moles of Na

or 1 mole of NaN3 will produce 1 mole of Na

the moles of NaN3 with mass of 100.0 g is 100/65 moles

so mass of Na is: (100/65) x 23 = 35.38 or 35.4g

Answer:

2.5 moles of aluminum oxide will form when all 5.0 moles of aluminum are used up.

Explanation:

The balanced chemical equation for the reaction between aluminum (Al) and oxygen (O2) to form aluminum oxide (Al2O3) is:

4 Al + 3 O2 → 2 Al2O3

This equation shows that 4 moles of aluminum react with 3 moles of oxygen to form 2 moles of aluminum oxide.

According to the problem, we have 5.0 mol of aluminum, which is more than enough to react with the oxygen available, and the limiting reagent in this reaction will be aluminum. Therefore, we need to use the mole ratio from the balanced equation to find out how many moles of aluminum oxide will form when all 5.0 moles of aluminum are used up.

From the equation, we can see that for every 4 moles of aluminum, 2 moles of aluminum oxide will form. Therefore, the mole ratio of aluminum to aluminum oxide is 4:2, or simplified, 2:1.

Using this mole ratio, we can calculate the number of moles of aluminum oxide that will form when all 5.0 moles of aluminum react:

5.0 mol Al × (2 mol Al2O3/4 mol Al) = 2.5 mol Al2O3

Therefore, 2.5 moles of aluminum oxide will form when all 5.0 moles of aluminum are used up.

The volume of the balloon is 12 it reaches this then  it is fully cooled by my refrigerator.

What is volume ?

Space is occupied by every three-dimensional object. Its volume serves as a gauge for this area. The area contained by an object's limits in three-dimensional space is referred to as its volume. Another name for it is an object's capacity.

What is temperature ?

The movement of these particles likewise increases with rising temperature. A thermometer or a calorimeter are used to measure temperature.

Therefore, The volume of the balloon is 12 it reaches this then  it is fully cooled by my refrigerator.

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The total pressure of the  mixture is 2.03 atm.

To solve this problem, we can use the ideal gas law, which relates the pressure, volume, number of moles, and temperature of a gas:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

First, we need to calculate the number of moles of each gas present in the cylinder. For helium:

n(He) = PV / RT

n(He) = (1.71 atm) (2.00 L) / (0.0821 L atm/mol K) (300.15 K)

n(He) = 0.139 mol

For argon:

n(Ar) = mass / molar mass

n(Ar) = 4.32 g / 39.95 g/mol

n(Ar) = 0.108 mol

The total number of moles in the cylinder is the sum of the moles of helium and argon:

n(total) = n(He) + n(Ar)

n(total) = 0.139 mol + 0.108 mol

n(total) = 0.247 mol

Now, we can use the ideal gas law to calculate the total pressure of the mixtP(total) = n(total) RT / V

P(total) = (0.247 mol) (0.0821 L atm/mol K) (300.15 K) / (2.00 L)

P(total) = 2.03 atm

Therefore, the total pressure of the resulting gaseous mixture is 2.03 atm.

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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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Statements on salinity;

Salinity refers to the measure of the concentration of dissolved salts, such as sodium and chloride ions, in a body of water. It is usually expressed in parts per thousand (ppt) or practical salinity units (PSU).

Salinity can vary in different bodies of water due to factors such as evaporation, precipitation, freshwater input from rivers, and ocean currents.

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Answer:

Explanation:

We can solve this problem using the combined gas law:

(P1V1) / T1 = (P2V2) / T2

where P is the pressure, V is the volume, and T is the temperature, measured in kelvins (K). The amount of gas is assumed to be constant.

We need to convert the initial and final temperatures to kelvins by adding 273.15 to each temperature:

T1 = 173 + 273.15 = 446.15 K

T2 = 567 + 273.15 = 840.15 K

Substituting the given values into the equation and solving for V2, we get:

(1V1) / T1 = (1V2) / T2

V2 = (T2/T1) * V1

V2 = (840.15/446.15) * 12.4 cm3

V2 = 23.3 cm3 (rounded to one decimal place)

Therefore, the final volume of the gas will be 23.3 cubic centimeters.

3.49 grams of NaOH reacted in this precipitation reaction.

From the balanced chemical equation

1 mole of Fe(NO3)3 reacts with 3 moles of NaOH to produce 1 mole of Fe(OH)3 and 3 moles of NaNO3.

We can start by calculating the number of moles of Fe(OH)3 produced:

molar mass of Fe(OH)3

= 55.85 g/mol + 3(16.00 g/mol + 1.01 g/mol)

= 106.88 g/mol

moles of Fe(OH)3 = 28.0 g / 106.88 g/mol = 0.262 moles

According to the stoichiometry of the balanced equation,

1 mole of Fe(OH)3 is produced by reacting with 3 moles of NaOH. Therefore, the number of moles of NaOH used in the reaction is:

moles of NaOH = 0.262 moles / 3 = 0.0873 moles

Convert the number of moles to grams:

molar mass of NaOH

= 22.99 g/mol + 16.00 g/mol + 1.01 g/mol

= 40.00 g/mol

grams of NaOH

= moles of NaOH x molar mass of NaOH

= 0.0873 moles x 40.00 g/mol

= 3.49 g

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IV. Acetylene is a hydrocarbon molecule composed of two carbon atoms and two hydrogen atoms. It is a flammable gas, and when ignited with a spark, it produces an extremely hot flame.

Molecule is a unit of matter composed of two or more atoms bonded together. Atoms are the basic building blocks of all matter, and molecules are collections of atoms. Molecules can range in size from diatomic molecules composed of two atoms, to large macromolecules made up of hundreds of atoms. Molecules can vary in shape and complexity, and can consist of a variety of different elements. Molecules can be found in all physical states, including solids, liquids, and gases.

Ethylene is a hydrocarbon molecule composed of two carbon atoms and four hydrogen atoms. It is a gas with a sweet odor and is found naturally in plants, fruits, and vegetables.

I.

a. Cr2O3 (Chromium (III) oxide);

b. NH4H2PO4 (Ammonium dihydrogen phosphate);

c. CaSO4 (Calcium sulfate).

II.

a. Iron(II) Chloride

b. Barium Hydroxide

c. Lithium Cyanide

d. Lead(II) Chloride

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Answer: sediments

Explanation: Weathering of volcanic ash and pumice is unique regarding minerals formed and mineral formation. These minerals include allophane, imogolite, opaline silica, and some halloysites, and have distinctive structures and properties. Mar 10, 1987

Erosion and weathering transform boulders and even mountains into sediments, such as sand or mud. A dissolution is a form of weathering—chemical weathering. With this process, water that is slightly acidic slowly wears away the stone. These three processes create the raw materials for new, sedimentary rocks.

1) It would be a supercritical fluid

2) The approximate rate constant is 0.5 Ms-1

3) Can not be deduced from the graph alone

4) The threshold energy is A

5) rate = k[A]^2 [B]^2

A supercritical fluid is a substance that is heated and pressurized to a point where it exists in a state that is intermediate between a gas and a liquid. This state is known as the supercritical state.

Supercritical fluids have properties of both gases and liquids. Like gases, they can expand to fill their containers, but like liquids, they have a high density and can dissolve other substances. In the supercritical state, the fluid has a higher density and viscosity than a gas, but a lower density and viscosity than a liquid.

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The theoretical yield of carbonic acid is 12 %.

What is carbon dioxide ?

One part carbon and two parts oxygen make up the gas called carbon dioxide. Its usage by plants to create carbohydrates during a process known as photosynthesis makes it one of the most significant gases on the planet.

What is reaction ?

The transformation of one or more reactants into one or more new products is referred to as a chemical reaction. Substances are made of chemical constituents or compounds. The transformation of one or more reactants into one or more new products is referred to as a chemical reaction. Substances are made of chemical constituents or compounds.

Therefore, The theoretical yield of carbonic acid is 12 %.

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No, using hydrochloric acid (HCl) to dissolve copper metal in the Preparation of Copper (I) Chloride experiment is not recommended because it would result in the formation of copper (II) chloride rather than copper (I) chloride.

How to prepare Copper (l) Chloride?

Copper metal reacts with hydrochloric acid to form copper (II) chloride and hydrogen gas:

Cu (s) + 2HCl (aq)

→ CuCl2 (aq) + H2 (g)

In contrast, when copper metal reacts with nitric acid, it is oxidized to copper (II) ions by the nitric acid. These copper (II) ions then react with copper metal to form copper (I) ions, which react with chloride ions to form copper (I) chloride:

Cu (s) + 4HNO3 (aq) → Cu(NO3)2 (aq) + 2NO2 (g) + 2H2O (l)

Cu(NO3)2 (aq) + 2Cu (s) → 3Cu2+ (aq) + 2NO3- (aq)

3Cu2+ (aq) + 2Cl- (aq) → Cu3Cl2 (s)

Therefore, to obtain copper (I) chloride, it is necessary to use nitric acid in the first reaction.

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The preferred arrangement of electrons in a molecular structure can be determined by calculating the electronic configuration of each atom in the molecule.

What is electronic configuration?

The electronic configuration of an atom is determined by the number of protons in the nucleus and the specific rules governing the filling of energy levels and orbitals. The electronic configuration is usually represented using a notation that indicates the number of electrons in each energy level or orbital.

what is delocalized electron ?

Delocalized electrons are electrons that are not restricted to a specific location or region in a molecule or material, but instead are spread out over multiple atoms or molecules. In other words, delocalized electrons are free to move throughout a larger region instead of being confined to a single atom or bond.

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Including the title, abstract, introduction, techniques & materials, results, commentary, conclusion, & references, a lab report is divided into eight components.

This lab is equipped with all the tools required for sample preparation as well as the standards needed for a variety of fluid and solid sample analyses. Glassware, exhaust fans, a muffled furnace, centrifuges, aggregate mills, and ovens are among the conventional equipment found in the lab.

It gives you an opportunity to put your knowledge to use while reinforcing the topics you have studied in class. You will gain knowledge of certain crucial experimental skills that are required if you want to work as a successful chemist.

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