What information does a topographical map primarily provide?

A measure of average kinetic energy of the particles of a substance is its: Temperature, which is in option A, as temperature is a measure of the average kinetic energy of the particles in a substance.

When the temperature of a substance increases, it means that the average kinetic energy of the particles in that substance is also increasing. Conversely, a decrease in temperature indicates a decrease in the average kinetic energy of the particles. Pressure (option B) is a measure of the force exerted by particles against the walls of a container. It is not directly related to the average kinetic energy of the particles.

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The average kinetic energy of a gas is given by the formula: KEavg = (3/2) kT. Average kinetic energy for fluorine, chlorine and bromine are found as \(6.56 × 10^-21 J, 6.56 × 10^-21 J and 6.56 × 10^-21 J\) respectively.

Where KEavg is the average kinetic energy of the gas, k is the Boltzmann constant (\(1.38 × 10^-23 J/K\)), and T is the temperature in Kelvin.

For F2:

\(KEavg = (3/2) kTKEavg = (3/2) (1.38 × 10^-23 J/K) (310 K)KEavg = 6.56 × 10^-21 J\)

For Cl2:

\(KEavg = (3/2) kTKEavg = (3/2) (1.38 × 10^-23 J/K) (310 K)KEavg = 6.56 × 10^-21 J\)

For Br2:

\(KEavg = (3/2) kTKEavg = (3/2) (1.38 × 10^-23 J/K) (310 K)KEavg = 6.56 × 10^-21 J\)

It is worth noting that the average kinetic energy of a gas is directly proportional to its temperature. As the temperature increases, the average kinetic energy of the gas increases.

This is because as the temperature increases, the molecules move faster and collide more frequently, resulting in an increase in kinetic energy.

Additionally, the formula assumes that the gas molecules are ideal, meaning that they have no intermolecular forces and occupy no volume. In reality, gas molecules do have intermolecular forces and occupy some volume, but these assumptions are valid for most gases under normal conditions.

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Answer:

Explanation:

0.76 V

The voltmeter shows that the standard cell potential of a galvanic cell consisting of a SHE and a Zn/Zn2+ couple is E°cell = 0.76 V.

The number of moles of ammonium nitrate required to have 3. 55 moles of oxygen is 7.1 moles.

To determine the number of moles of ammonium nitrate required to have 3.55 moles of oxygen, we need to use the balanced chemical equation for the reaction. The balanced chemical equation for the decomposition of ammonium nitrate is:

2 NH₄NO₃ → 2 N₂ + 4 H₂O + O₂

From the balanced chemical equation, we can see that 2 moles of ammonium nitrate produces 1 mole of oxygen. Therefore, to produce 3.55 moles of oxygen, we need:

3.55 moles O₂ × (2 moles NH₄NO₃ / 1 mole O₂) = 7.1 moles NH₄NO₃

Therefore, 7.1 moles of ammonium nitrate are required to produce 3.55 moles of oxygen.

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Answer: Increasing the concentration of a base will cause the pH level of the solution to increase. Increasing the concentration of an acid will cause the pH level of the solution to decrease.

Explanation:

Ethane, because the electron clouds of its molecules are more polarizable than those of propanol.

Ethane is a paraffin series hydrocarbon with the chemical formula C2H6, which is a colourless, odourless, gaseous hydrocarbon. The only hydrocarbon with just one carbon-carbon link structurally is ethane. Ethane is primarily used to create ethylene, a feedstock for plastic production. The primary product of ethylene is ethylene, which is subsequently utilised by the petrochemical industry to create a variety of intermediate products, the majority of which are transformed into plastics. * When breathed in, ethane can have an impact on you. Headache, nauseousness, vomiting, lightheadedness, and other symptoms of exposure are possible. Suffocation from a lack of oxygen can occur at extremely high levels.

based on the structural formulas, which of the following identifies the compound that is more soluble in water and best helps to explain why?

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Answer:

The law of conservation of mass states that the quantity of the mass can neither be added to, neither can it be removed. The greater picture's mass will always be the same amount.

Answer:

I will measure by weight and make sure the weight of each pupils on both teams are the same

Answer:

b) 689,000mm

as 1m= 1000mm

Answer:

A

Explanation:

mark me brainlisted please

Answer:

Covalent (molecular) bonds are formed when electrons are shared between non metal atoms

Explanation:

A chemical bond is the attraction between atoms, ions or molecules of different or the same element that enables the formation of chemical compounds.

Covalent (molecular) bonds are formed when electrons are shared between non metal atoms. Covalent bonds help the atoms to reach a stable state.

Example of covalent bonds are carbon monoxide (CO), iodine monobromide (IBr), H2 (hydrogen) and so on

The grams of potassium chloride (KCI are needed to prepare 0.750 L of a 150 M solution of potassium chloride in water is the

83.81 g.

Given that :

Molarity of the KCl = 1.50 M

Volume of the potassium chloride = 0.750 L

The Molarity expression is given below :

Molarity = moles / volume in L

moles = Molarity × volume

moles = 1.50 × 0.750  

moles = 1.125 mol

molar mass of the KCl = 74.5 g/mol

Mass of the KCl = moles × molar mass

Mass of the KCl = 1.125 × 74.5

                          = 83.81 g

Thus, the mass of KCl is 83.81 g

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The formulas of the compounds that were shown are;

CaCl2

K2S

AlBr3

BeF2

MgS

Ionic compounds are a type of chemical compound made up of ions, which are atoms or molecules that have a positive or negative charge due to the gain or loss of electrons. In ionic compounds, positive ions (cations) are typically metal atoms, while negative ions (anions) are typically non-metal atoms. These ions are held together in a crystal lattice structure by strong electrostatic forces, forming a solid, crystalline substance.

Ionic compounds typically have high melting and boiling points, and they are often soluble in water. They are also typically poor conductors of electricity in the solid state, but good conductors in the melted or dissolved state due to the movement of ions.

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The process that separates pigments from a plant extract is known as chromatography.

This technique involves the separation of different components of a mixture based on their chemical properties and interactions with a stationary phase and a mobile phase. In the case of plant pigments, the stationary phase can be a paper or a thin layer of silica gel or alumina, and the mobile phase is typically a solvent that is able to dissolve the pigments.
When the plant extract is applied to the stationary phase, the pigments will migrate through the mobile phase at different rates depending on their chemical properties, such as their polarity and size. This results in the separation of the pigments into distinct bands or spots on the stationary phase.
There are several types of chromatography techniques that can be used to separate pigments from a plant extract, including paper chromatography, thin-layer chromatography, and high-performance liquid chromatography. These techniques vary in their level of sensitivity, resolution, and speed, but they all rely on the principles of chromatography to isolate and identify the different pigments present in the plant extract.

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The volume of the air bubble that will form if the pressure outside the submarine breaks it will be approximately 13.95 liters.

What is the volume?

Assuming that the temperature remains constant, we can use Boyle's law to determine the volume of the air bubble that will form if the pressure outside the submarine breaks it. Boyle's law states that the pressure of a gas is inversely proportional to its volume when temperature is held constant.

Let V1 be the initial volume of the air in the submarine, P1 be the initial pressure inside the submarine (1.01 atm), P2 be the pressure outside the submarine (1086 atm), and V2 be the final volume of the air bubble.

According to Boyle's law, we have:

P1 x V1 = P2 x V2

Substituting the given values, we get:

1.01 atm x 15,000 L = 1086 atm x V2

Solving for V2, we get:

V2 = (1.01 atm x 15,000 L) / 1086 atm = 13.95 L

Therefore, the volume of the air bubble that will form if the pressure outside the submarine breaks it will be approximately 13.95 liters.

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Complete question is: Submarines need to be extremely strong to withstand the extremely high pressure of water pushing down on them. An experimental research submarine with a volume of 15,000 liters has an internal pressure of 1.01 atm. If the pressure of the ocean breaks the submarine, 13.95 liters the bubble of air in the submarine be if the pressure outside the sub is 1086 atm.

So,

Since ice, liquid water, and water vapor have different intermolecular environments (in part due to the different average distance between molecules), energy is absorbed and distributed differently in these three phases of water, resulting in different specific heats.

The intermolecular forces of liquid water, ice, and water vapor are different. Therefore, different amounts of energy are needed to raise their temperature.

The correct answer is B.

the moles of sulfur produced, if 2.5 moles of sulfur dioxide are used in the following chemical reaction is C) 7.5 mol.

According to the equation:

1 mole of SO2 reacts with 2 moles of H2S to produce 3 moles of S

Therefore, for 2.5 moles of SO2, the number of moles of S produced can be calculated as:

2.5 mol SO2 x (3 mol S / 1 mol SO2) = 7.5 mol S

So, 7.5 moles of sulfur would be produced if 2.5 moles of sulfur dioxide were used in the given chemical reaction.

Therefore, the correct answer is (c) 7.5 mol.

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To make a 3% solution of acid alcohol, you need to add 29.1 ml hydrochloric acid (HCl) to 970 ml of 95% ethanol.

To calculate how much HCl you need, you can use the formula:

Amount of HCl = Desired concentration x Volume of ethanol/100

Therefore, you will need 29.1 ml of HCl to make a 3% solution of acid alcohol:

Amount of HCl = 3 x 970/100 = 29.1 ml

You can also calculate the amount of HCl you need by using a ratio and proportion. Let x represent the amount of HCl you need.

95% ethanol : 3% acid alcohol :: 970 ml : x

By solving the proportion, you can determine that x is equal to 29.1 ml.

Thus, you will need 29.1 ml of HCl to make a 3% solution of acid alcohol when starting with 970 ml of 95% ethanol.

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To solve this, we must know the formula for mass defect. Protons and neutrons are the nucleons at play here. Therefore,  the mass defect of the nucleus of thorium-232 is 1.911384 amu.

The difference or disparity between the mass of the nucleus and the mass of the nucleons is known as a mass defect.

mass of protons = 1.6727 x 10⁻²⁴ g

                           = 1.007316 amu

mass of neutrons= 1.6750 x  10⁻²⁴  g

                           = 1.008701 amu

mass of Thorium= 234 g/mol

                            = 234 amu

In thorium -232

protons = 90

neutrons = 144

mass defect = mass of protons×90 + mass of neutrons ×144 - 234

mass defect = 1.911384 amu

Therefore,  the mass defect of the nucleus of thorium-232 is 1.911384 amu.

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a) The sphere emits thermal radiation at a rate of 139.75 Watts.

b) The sphere absorbs thermal radiation at a rate of 37.66 Watts.

c) The sphere's net rate of energy exchange is 102.09 Watts.

To calculate the rates of thermal radiation emission and absorption, we can use the Stefan-Boltzmann law, which states that the rate of thermal radiation emitted or absorbed by an object is proportional to its surface area, temperature, and the Stefan-Boltzmann constant.

a) The rate of thermal radiation emitted by the sphere can be calculated using the formula:

Emitting Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(temperature^4 - environment\ temperature^4\))

Plugging in the given values:

Emitting Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((32.2 + 273.15)^4 - (82.9 + 273.15)^4)\)

Emitting Rate ≈ 139.75 Watts

b) The rate of thermal radiation absorbed by the sphere can be calculated in a similar way but using the environment temperature as the object's temperature:

Absorbing Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(environment\ temperature^4 - temperature^4\))

Plugging in the given values:

Absorbing Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((82.9 + 273.15)^4 - (32.2 + 273.15)^4)\)

Absorbing Rate ≈ 37.66 Watts

c) The net rate of energy exchange is the difference between the emitting rate and the absorbing rate:

Net Rate = Emitting Rate - Absorbing Rate

Net Rate = 139.75 Watts - 37.66 Watts

Net Rate ≈ 102.09 Watts

Therefore, the sphere emits thermal radiation at a rate of 139.75 Watts, absorbs thermal radiation at a rate of 37.66 Watts, and has a net rate of energy exchange of 102.09 Watts.

Note: The units for all the rates are Watts.

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Answer: The temperature of the gas if 65.85g of N2 are placed in 17.5L container with a pressure of 1988 mmHg is 1780. 6° C

Explanation:

The ideal gas law states that the volume, pressure and temperature of the a gas is related to the number of moles.

It is represented thus;

P V = n R T

Parameters :

Pressure, P = 1988 mmHg

Volume, V = 17.5 L

number of moles, n = mass ÷ molar mass

mass of N2 = 65.84g

Molar mass of N2 = 28.02 g/ mol

n = 65.85 ÷ 28.02

n = 2. 350 moles.

Temperature = ?

Universal gas constant, R = 8.314 J/mol. K

Calculations :

T = P V ÷ n R

T = 1988 × 17.5 ÷ 2.350 × 8.314

T = 34790 ÷ 19. 5379

T = 1780. 6 ° C

Thus, the temperature of the gas is 1780. 6 ° C

Answer:

Under the same conditions and assuming ideal gas behavior, both gases should have the same number of moles. This means the higher the molar mass the denser the gas. Water vapor would be less dense than N2 under the same conditions.

Explanation:

The property of matter that is conserved in chemical reactions and shown by balanced equations is known as the Law of Conservation of Mass. According to this law, mass can neither be created nor destroyed in a chemical reaction; it can only be transformed from one form to another.For instance, when two substances are combined, they react and form a new substance.

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Answer:

The list of quantities of components, ingredients, and materials required to produce a product is the. master schedule.

Explanation:

➢number of moles. Moles and Chemical Reactions. Chapter 4. 3 H2. + N2. →. 2 NH3 ... How many grams of NH3 would form if 2.11 moles of N2 reacted with ...

Answer:

Nucleotides are made up of a five carbon sugar such as ribose or deoxyribose and a group of phosphate with 1-3 phosphates

Answer:i don’t see any answer choices but i guess the nucleotides are A, T, C, and G?

Explanation:

Answer:

A converter to convert from dc to ac

Explanation: