What disease is spread through warm climates ?

Answer:

Just use a text book.. So that you get the concept

Answer:

\(0.5594\ \text{L}\)

Explanation:

Mol of NaI = 0.405 mol

Molarity of solution = 0.724 M

Molarity is given by

\(M=\dfrac{\text{mol}}{\text{Volume of solution in }NaI}\\\Rightarrow \text{Volume of solution in }NaI=\dfrac{0.405}{0.724}\\\Rightarrow \text{Volume of solution in }NaI=0.5594\ \text{L}\)

The required volume is \(0.5594\ \text{L}\).

Answer:

The style of Vincent Van Gogh's Starry Night (1889) is Post-Impressionism.

Post-Impressionism is an art movement that developed in France in the late 19th century as a reaction against the limitations of Impressionism. It is characterized by a focus on subjective emotions and personal interpretations of the world, as well as an interest in the formal qualities of art, such as color, line, and form.

Van Gogh's work is known for its expressive use of color and texture, and Starry Night is a prime example of his Post-Impressionist style, with its swirling brushstrokes, intense colors, and dreamlike quality.

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Scientific notation is a method of expressing numbers that are too large or too tiny to be represented in decimal form because it would need an extremely long string of digits.

Numbers significantly larger or smaller than these are difficult to read and write because it is simple to count the zeros incorrectly. Using exponential notation is easier. Very large numbers can be expressed as an ordinary (fixed point) number, a letter E, and a whole number. The full number indicates how many places to the right the fixed point number's decimal point must be shifted to acquire the same value as an ordinary number.

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Answer:

D. Light waves travel fastest through a vaccumm

Explanation:

"In a vacuum , light waves move their fastest: 186,000 miles per second (300,000 kilometers per second). This is also the fastest that anything in the universe moves. But when light waves move through air, water or glass, they slow down."

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Explanation:

acid should be handled with caution because it is dangerous as it may burn the skin

Answer:

pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.

Explanation:

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Answer:

C. It would be less likely to be eaten by insects.

Explanation:

The bitter taste and strong odor of the wormwood plant would repel the insects from eating the plant.

The final temperature of the water is 71.99°C.

The final temperature when 625 grams of water at 75.0°C loses 7.96 x 10⁴ J can be found using the specific heat capacity equation:

q = mcΔT

where q is the amount of 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 specific heat capacity of water, which is 4.18 J/g°C. Then we can rearrange the equation to solve for ΔT:

ΔT = q / (mc)

Substituting the given values, we get:

ΔT = (7.96 x 10⁴ J) / (625 g x 4.18 J/g°C)

ΔT = 3.01°C

Therefore, the final temperature is:

Tfinal = Tinitial - ΔT

Tfinal = 75.0°C - 3.01°C

Tfinal = 71.99°C

As a result, the water's ultimate temperature is 71.99°C.

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answer:

In biology, the energy that is stored in the bonds between compounds is termed as the chemical energy. This chemical energy is released and converted into different forms according to the functions of the body.

Potential energy can be described as the energy that is stored in an object. In physics, the energy that an object possesses while at rest is termed as the potential energy.

The energy that can be used during work is termed as the kinetic energy. In physics, kinetic energy can be described as the energy that an object possesses while in motion.

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Answer: The stored energy is termed as potential energy while the working energy is termed as kinetic energy. The electricity used in our homes is also a form of energy because it is a form of usable power. The places from which the different energies are obtained are known as energy sources.

Answer: During aerobic respiration, catabolic reactions convert larger complex organic molecules into ATP, the chemical that drives most physiological processes in the body.

Explanation:

74.6 kJ

exothermic

has a magnitude that is less than that of B

represents the overall enthalpy of reaction

Answer:

Arrow A:

✔ 74.6 kJ

Arrow B:

✔ exothermic

Arrow C:

✔ has a magnitude that is less than that of B

Arrow D:

✔ represents the overall enthalpy of reaction

Explanation:

edge

Answer:

yeasts, moulds, bread, beer, wine, ...

Explanation:

Answer:

I'm pretty sure that it is Hydrosphere. Excuse me if it is not.

Explanation:

Answer:

Aqueous layer (1 M HCI)

Explanation:

First of us I want to remind you of the cliché in chemistry that like dissolves like. In solvent extraction, a mixture is dissolved in a system consisting of two immiscible solvents. One layer is organic while the other layer is aqueous.

Polar substances partition in the aqueous layer while nonpolar substances partition in the organic layer.

Since Copper sulfate is ionic, we will find it in the aqueous layer according to the old chemistry cliche.

Answer:

125.4 kilopascals

Explanation:

wkdje

Answer:

125,400 pa = 125.4 kPa

Explanation:

1 pa = 0.001 kPa

&

1 kPa = 1,000 pa

The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.

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Answer:

Strong winds that blow for a long time over a great distance.

Explanation:

Generally, the biggest and most powerful wind-generated waves are produced by strong storms that blow for a sustained period over a large area. Huge and big waves, or swells, can travel over long distances. The size of the wave depends on wind speed, wind duration, and the area over which the wind is blowing. If The speed of the wind is more, it stays for along time and it covers a larger distance then the waves produced will be very powerful and large.

Approximately 60.9% of the total energy in 2005 came from fuels that emitted greenhouse gases. This signifies a significant contribution to global greenhouse gas emissions and highlights the importance of transitioning to cleaner and more sustainable energy sources to mitigate climate change impacts.

To determine the total percent of energy that came from fuels emitting greenhouse gases, we need to consider the energy sources listed in the chart that are known to produce greenhouse gas emissions. In this case, those would be oil, natural gas, and coal.

From the chart, we see that the percentages for these three energy sources are:

Oil: 37.9%

Natural gas: 23%

Coal: Not specified

Although the percentage for coal is not mentioned in the given information, it is a known fact that coal combustion releases greenhouse gases, including carbon dioxide (CO2). Therefore, we can assume that coal is among the fuels emitting greenhouse gases.

Adding up the percentages for oil and natural gas, we have:

37.9% (oil) + 23% (natural gas) = 60.9%

Therefore, approximately 60.9% of the total energy in 2005 came from fuels that emitted greenhouse gases. This signifies a significant contribution to global greenhouse gas emissions and highlights the importance of transitioning to cleaner and more sustainable energy sources to mitigate climate change impacts.

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In the J = 0 state, the BrF molecule does not undergo any revolutions per second. In the J = 1 state, it undergoes approximately 0.498 revolutions per second, and in the J = 10 state, it undergoes approximately 15.71 revolutions per second.

To calculate the rotational constant B, we can use the formula:

B = 1 / (2 * π * Δν)

Where:

B = rotational constant

Δν = spacing between consecutive lines in the rotational spectrum

Given that the spacing between consecutive lines is 0.71433 cm^(-1), we can substitute this value into the formula:

B = 1 / (2 * π * 0.71433 cm^(-1))

B ≈ 0.079 cm^(-1)

The moment of inertia (I) of the molecule can be calculated using the formula:

I = h / (8 * π^2 * B)

Where:

h = Planck's constant

Given that the value of Planck's constant (h) is approximately 6.626 x 10^(-34) J·s, we can substitute the values into the formula:

I = (6.626 x 10^(-34) J·s) / (8 * π^2 * 0.079 cm^(-1))

I ≈ 2.11 x 10^(-46) kg·m^2

The bond length (r) of the molecule can be determined using the formula:

r = sqrt((h / (4 * π^2 * μ * B)) - r_e^2)

Where:

μ = reduced mass of the molecule

r_e = equilibrium bond length

To calculate the wavenumber (ν) of the J = 9+ to J = 10 transition, we can use the formula:

ν = 2 * B * (J + 1)

Substituting J = 9 into the formula, we get:

ν = 2 * 0.079 cm^(-1) * (9 + 1)

ν ≈ 1.58 cm^(-1)

To determine the most intense spectral line at room temperature (300 K), we can use the Boltzmann distribution law. The intensity (I) of a spectral line is proportional to the population of the corresponding rotational level:

I ∝ exp(-E / (k * T))

Where:

E = energy difference between the levels

k = Boltzmann constant

T = temperature in Kelvin

At room temperature (300 K), the population distribution decreases rapidly with increasing energy difference. Therefore, the transition with the lowest energy difference will have the most intense spectral line. In this case, the transition from J = 0 to J = 1 will have the most intense spectral line.

To calculate the number of revolutions per second, we can use the formula:

ω = 2 * π * B * J

Where:

ω = angular frequency (in radians per second)

J = rotational quantum number

For J = 0:

ω = 2 * π * 0.079 cm^(-1) * 0 = 0 rad/s

For J = 1:

ω = 2 * π * 0.079 cm^(-1) * 1 ≈ 0.498 rad/s

For J = 10:

ω = 2 * π * 0.079 cm^(-1) * 10 ≈ 15.71 rad/s

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Because coal burning releases carbon dioxide, it causes a chemical alteration that is difficult to undo.

Burning causes the carbon to become carbon dioxide and the hydrogen to become water. The quantity of heat produced by each of the processes varies slightly. Because of the irreversibility of this process, burning coal involves a chemical transformation.

You should be able to recall what physical change and chemical change are in order to respond to this question. When only the physical characteristics of the reactant change, a material is said to go through a physical change, whereas a chemical change refers to the combination of two substances to create a new compound.

One type of chemical reaction is burning. For instance, when charcoal burns, carbon and oxygen combine to form carbon dioxide. Reactants, or the initiating elements in a chemical reaction, are carbon and oxygen. The reaction's byproduct is carbon dioxide.

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Because coal burning releases carbon dioxide, it causes a chemical alteration that is difficult to undo.

Burning causes the carbon to become carbon dioxide and the hydrogen to become water. The quantity of heat produced by each of the processes varies slightly. Because of the irreversibility of this process, burning coal involves a chemical transformation.

You should be able to recall what physical change and chemical change are in order to respond to this question. When only the physical characteristics of the reactant change, a material is said to go through a physical change, whereas a chemical change refers to the combination of two substances to create a new compound.

One type of chemical reaction is burning. For instance, when charcoal burns, carbon and oxygen combine to form carbon dioxide. Reactants, or the initiating elements in a chemical reaction, are carbon and oxygen. The reaction's byproduct is carbon dioxide.

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Answer:

b, c, e

Explanation:

Inorganic compounds usually lack carbon.

Inorganic compounds are not associated with or made from living things.

Inorganic compounds include salt and water​.

Answer:

yes the answer id bce

Explanation:

Answer:

Radient energy

Explanation:

Radiant energy is the type of energy that travels by waves.

Q = Ksp = 1 × 10^(-12).

Substituting the values into the Nernst equation, we have:

0.799 V = E° - (RT/2F) * ln(1 × 10^(-12))

Now, solving for E°:

E° = 0.799 V + (RT/2F) * ln(1 × 10^(-12))

The value of R is the ideal gas constant, T is the temperature in Kelvin, and F is the Faraday constant.

To find the standard reduction potential at 25°C for the half-reaction Ag2CrO4(s) + 2e¯ → 2Ag(s) + CrO4²-(aq), we can use the Nernst equation, which relates the standard reduction potential (E°) to the equilibrium constant (K) and the reaction quotient (Q).

The Nernst equation is given as follows:

E = E° - (RT/nF) * ln(Q)

Given information:

Ksp = 1 × 10^(-12)

E = +0.799 V (standard reduction potential of Ag+ to Ag)

Since the reaction involves the dissolution of Ag2CrO4(s), the reaction quotient Q can be expressed as [Ag+]²/[CrO4²-].

Since the stoichiometry of the reaction is 2:1 for Ag2CrO4 to Ag+, we can say that [Ag+]² = Ksp.

Therefore, Q = Ksp = 1 × 10^(-12).

Substituting the values into the Nernst equation, we have:

0.799 V = E° - (RT/2F) * ln(1 × 10^(-12))

Now, solving for E°:

E° = 0.799 V + (RT/2F) * ln(1 × 10^(-12))

The value of R is the ideal gas constant, T is the temperature in Kelvin, and F is the Faraday constant.

Please note that without specific values for temperature (T) and the ideal gas constant (R), the exact standard reduction potential at 25°C cannot be determined.

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The correct option that would convert mg/L into molarity (mol/L)- Convert mg/L to get g/L then multiply by the volume (L). so, option (a) is correct.

What is molarity ?

The amount of solute in one mole per liter of solution is known as molarity. For instance, when table salt is dissolved in water, the solute is salt, and the solution is water. 58.44 grams make up one mole of sodium chloride. One molar solution, often known as 1M, is created when 58.44 grams of sodium chloride are dissolved in one liter of water.

What is volume ?

Volume, a three-dimensional quantity, is used to calculate the capacity of a solid shape. It suggests that the volume of a closed figure determines the amount of three-dimensional space it can occupy.

Therefore, the correct option that would convert mg/L into molarity (mol/L)- Convert mg/L to get g/L then multiply by the volume (L). so, option (a) is correct.

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Answer: Not A, its B

Explanation: B

The connection between increasing carbon dioxide and increasing temperature is: carbon dioxide absorbs heat from the sun and traps it in earth's atmosphere. Since the heat cannot escape, it causes the earth's temperature to increase which is the first option.

When carbon dioxide (CO₂) and other greenhouse gases are present in the atmosphere, they act as a natural blanket, allowing sunlight (solar radiation) to pass through and reach the Earth's surface. Some of this solar radiation is absorbed by the Earth's surface, while the rest is reflected back towards space as heat (infrared radiation). However, greenhouse gases like carbon dioxide have the property of absorbing and re-emitting infrared radiation.

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