Is Valparaiso warmer, colder, or the same temperature as Sydney? Explain why as completely as you can

Answer:

A. Reduced precipitation is the cause of drought.

Explanation:

Reduced precipitation begins to insufficient water availability because water catch basins or tanks tend to dry out. When it drains out, people tend to start working and drying out the backup water sources and stored ones. Until such time, that the reservoirs of water will completely be dried out. And there will be no more water for them to use and there will be a drought.

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Answer:

Option A

Explanation:

1) List known data.

Moles of sugar: 0.500

Mass of water: 0.750 kg

2) List unknown data.

Boiling point elevation:

3) Set the equation for boiling point elevation

ΔT: change in temperature

Kb: Ebulloscopic constant (0.512 ºC/molal).

m: molality.

4) Molality of the solution

5) Plug in values in the equation

The change in the boiling point is 0.341ºC.

Yes, the reaction worked. Three key signals that suggest the reaction worked include the appearance of the product, the presence of the expected starting material, and the absence of any other byproducts.

The product, 1-methoxy-2-chloro-4-nitrobenzene, can be identified by its distinct color, smell, and boiling point. Additionally, if the expected starting material is present, then it shows that the reaction has taken place.

Lastly, the absence of any other byproducts such as unreacted starting material implies that the reaction was successful. All together, all three signals indicate that the reaction worked.

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The approximately 3.06 moles of electrons must be transferred through a cell in order for the total charge transferred to be 295,000 c.

The charge on one mole of electrons is the Faraday constant (F) which is equal to 96500 C/mol. To calculate how many moles of electrons must be transferred through a cell in order for the total charge transferred to be 295,000 c, we will use the following equation:

moles of electrons

= charge transferred / Faraday constant moles of electrons

= 295000 / 96500 moles of electrons

= 3.06.

The approximately 3.06 moles of electrons must be transferred through a cell in order for the total charge transferred to be 295,000 c.

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the supports are for the influences climate of the ecosystem

define the ecosystem ?

This article discusses the ecosystem and its various components. An ecosystem is a community or collection of living and nonliving creatures and their interactions with one another. They can be both natural and manufactured. Every ecosystem is made up of two parts: biotic components and abiotic components. Biotic components are all live species in an ecosystem, whereas abiotic components are non-living substances. These biotic and abiotic interactions keep the ecosystem in balance. Let's go through the ecosystem's components in depth.

An ecosystem is a geographical region in which plants, animals, and other species, as well as weather and scenery, coexist to produce a living bubble.

the supports are for the influences climate of the ecosystem

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Answer:

c. main energy level of an electron

Explanation:

An atom can be defined as the smallest unit comprising of matter that forms all chemical elements. Thus, atoms are considered to be the building blocks of matter and as such defines or determines the structure of a chemical element.

Generally, atoms are typically made up of three distinct particles and these includes; protons, neutrons and electrons.

In Chemistry, electrons can be defined as subatomic particles that are negatively charged and as such has a magnitude of -1.

The principal quantum number, denoted by n, represents the main or overall energy level of an electron.

Basically, this property of an electron determines its energy level, as well as its distance from the nucleus of an atom of any chemical element. Also, as the distance of each orbital from the nucleus increases, the energy level increases respectively. Thus, sets of orbitals having the same principal quantum number (n) are generally referred to as an electron shell.

The fugacity in atm for pure ethane at 310 K and 20.4 atm is given by the equation: f = 20.4 exp (-Δg1/RT). The change in chemical potential between this state and a second state of ethane where the temperature is constant but the pressure is 24 atm is -0.0911RT.

Fugacity is a measure of the escaping tendency of a component in a mixture, which is defined as the pressure that the component would have if it obeyed ideal gas laws. It is used as a correction factor in the calculation of equilibrium constants and thermodynamic properties such as chemical potential. Here we need to determine the fugacity in atm for pure ethane at 310 K and 20.4 atm and the change in the chemical potential between this state and a second state of ethane where the temperature is constant but the pressure is 24 atm. So, using the formula of fugacity: f = P.exp(Δu/RT) Where P is the pressure of the system, R is the gas constant, T is the temperature of the system, Δu is the change in chemical potential of the system.  Δu = RT ln (f / P)The chemical potential at the initial state can be calculated using the ideal gas equation as: PV = nRT    

=>  P

= nRT/V

=> 20.4 atm

= nRT/V

=> n/V

= 20.4/RT The chemical potential of the system at the initial state is:

Δu1 = RT ln (f/P)

= RT ln (f/20.4) Also, we know that for a pure substance,

Δu = Δg. So,

Δg1 = Δu1 The change in pressure is 24 atm – 20.4 atm

= 3.6 atm At the second state, the pressure is 24 atm.

Using the ideal gas equation, n/V = 24/RT The chemical potential of the system at the second state is: Δu2 = RT ln (f/24) = RT ln (f/24) The change in chemical potential is Δu2 – Δu1 The change in chemical potential is

Δu2 – Δu1 = RT ln (f/24) – RT ln (f/20.4)

= RT ln [(f/24)/(f/20.4)]

= RT ln (20.4/24)

= - 0.0911 RT Therefore, the fugacity in atm for pure ethane at 310 K and 20.4 atm is:

f = P.exp(Δu/RT)

=> f

= 20.4 exp (-Δu1/RT)

=> f

= 20.4 exp (-Δg1/RT) And, the change in the chemical potential between this state and a second state of ethane where the temperature is constant but pressure is 24 atm is -0.0911RT. Therefore, the fugacity in atm for pure ethane at 310 K and 20.4 atm is given by the equation: f = 20.4 exp (-Δg1/RT). The change in chemical potential between this state and a second state of ethane where the temperature is constant but the pressure is 24 atm is -0.0911RT.

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Answer:

To find the pressure of the dry hydrogen gas alone, we need to subtract the pressure exerted by the water vapor from the total pressure of the mixture.

First, we need to convert the vapor pressure of water from mmHg to kPa:

11.9 mmHg x (1 kPa / 7.5006 mmHg) = 0.0159 kPa

Next, we need to subtract this value from the total pressure of the mixture:

113.0 kPa - 0.0159 kPa = 112.9841 kPa

Therefore, the pressure exerted by the dry hydrogen gas alone is 112.9841 kPa.

Explanation:

Answer:

Explanation:

T1 = 505 K

P1 = 105.3 kPa = 1.04 atm

V1 = 0.250 L

T2 = 495 K

P2 = 100.3 kPa = 0.990 atm

V2 = ?

495 x 1.04 x 0.250 ÷ 505 ÷ 0.990 = V2

V2 = 0.257 L

So 0.257 L is the answer!!

The amount of energy absorbed by 2.00 L of gasoline as it is converted to the vapor phase at its boiling point is 22606 J.

We know that;

1 mole of gasoline occupies 22.4 L

x moles of gasoline occupies 2 L

x = 0.089 moles

Then we have that the mass of the gasoline = 0.089 moles * 100 g/mol

= 8.9 g

Then;

H = mL

L = 2540 J/g for gasoline

Thus the energy that is absorbed  is;

H =  8.9 g * 2540 J/g

H = 22606 J

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Answer:

Extensive properties, such as mass and volume depend on the amount of substance present and are not useful in the identification of a substance. In this experiment, we will use three properties to identify a liquid substance: solubility, density and boiling point.

Answer:

agua

Explanation:

por que estamos en la planeta

is it amino acids???????

The correct answer is D) NO (nitric oxide) is not produced following activation of the NADPH oxidase microbicidal pathway.

The NADPH oxidase microbicidal pathway is a process used by phagocytic cells such as neutrophils and macrophages to generate reactive oxygen species (ROS) that are involved in killing invading microorganisms.

Upon activation, the enzyme NADPH oxidase produces superoxide anion (O2-) by transferring electrons from NADPH to molecular oxygen (O2). Superoxide anion can then be converted to other ROS, including hydrogen peroxide (H2O2) and hydroxyl radical (OH), which are toxic to microorganisms.

However, the NADPH oxidase microbicidal pathway does not produce NO. NO is primarily produced by endothelial cells and neuronal cells and plays a role in vasodilation, neurotransmission, and immune response, among other functions.

Therefore, among the given options, NO is not produced following activation of the NADPH oxidase microbicidal pathway.

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Answer:

Neptune

Explanation:

Answer:

D all of these

Explanation:

The process of classifying living things can be described from the perspective of the given choices described.

In the classification of organisms, they are placed into groups which they appropriately fit into.

All the choices given correctly shows the process of classifying organisms. This aspect of biology is described as taxonomy.

The answer is C) 0.5 kg. This is because Plutonium-238 has a half-life of 87.7 years, which means that after 87.7 years, half of the original amount of Plutonium-238 will remain. In this case, that would be 2 kg * 0.5 = 0.5 kg.

Plutonium-238 is a radioactive element used as a power source in spacecraft like Voyager and New Horizons. It has a half-life of 87.7 years. Suppose we have 2 kg of plutonium-238 right now. Radioactive decay is a random event. So, it is impossible to predict when a specific atom will decay. But we can find how much radioactive material is remaining after a specific period of time.

The half-life of a radioactive material is the time required for half of the radioactive material to decay. The formula to calculate the remaining material is:

N(t) = N0 × (1/2)^(t/t1/2)

Where N(t) is the remaining material at time t, N0 is the initial material, t1/2 is the half-life, and t is the elapsed time.

The initial material is 2 kg, half-life is 87.7 years, and the elapsed time is also 87.7 years.

N(87.7) = 2 kg × (1/2)^(87.7/87.7)= 1 kg × 0.5= 0.5 kg

Therefore, the amount of plutonium remaining after 87.7 years will be 0.5 kg. So, the answer is option C.

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Answer:

More directly.

Explanation:

Summer happens in Vermont when the sun's rays hit it more directly than any other time of year because this direct angle causes more warm environment. In the winter season, the angle of sun is about 45° due to which the place receives less solar radiation and the environment is cold while on the other hand, in the summer season the angle of the sun is about 90° due to which direct sunlight occurs on the region that causes warm and hot environment.

Answer:

\(\boxed {\boxed {\sf 9.6 \ mol \ KCl}}\)

Explanation:

We must use stoichiometry to solve this, which is the calculation of reactants and products in a reaction using ratios.

Let's analyze the reaction given.

\(MgCl_2 _{(aq)} + K_2SO_4 _{(aq)} \rightarrow 2KCl _{(aq)} + MgSO_4 _{(s)}\)

Now, look at the coefficients, or numbers in front of the molecule formulas. If there isn't a coefficient, then a 1 is implied.

We want to find how many moles of potassium chloride (KCl) are produced from 4.8 moles of magnesium chloride (MgCl₂). Check the coefficients for these molecules.

The coefficient represents the number of moles. Therefore, 1 mole of magnesium chloride produces 2 moles of potassium chloride. We can set up a ratio using this information.

\(\frac { 1 \ mol \ MgCl_2} {2 \ mol \ KCl}\)

Multiply by the given number of moles of magnesium chloride: 4.8

\(4.8 \ mol \ MgCl_2 *\frac { 1 \ mol \ MgCl_2} {2 \ mol \ KCl}\)

Flip the ratio so the moles of magnesium chloride cancel out.

\(4.8 \ mol \ MgCl_2 *\frac {2 \ mol \ KCl} { 1 \ mol \ MgCl_2}\)

\(4.8 *\frac {2 \ mol \ KCl} { 1 \ } }\)

\(4.8 * {2 \ mol \ KCl}\)

\(9.6 \ mol \ KCl\)

9.6 moles of potassium chloride are produced from 4.8 moles of magnesium chloride.

The foreign substance responsible for causing an allergic reaction is called an allergen.

The exaggerated reaction of our body’s immune system to certain foreign substances is known as an allergy.

The symptoms of allergy are sneezing, watery eyes, running nose, and difficulty in breathing which occur due to the release of certain chemicals like histamine and serotonin in our body.

The foreign substance that causes allergy is called an allergen.

Common examples of the allergens are pollen grains of certain plants, animal dander, and food items like peanuts, mushrooms etc.

To control the symptoms of allergy, drugs like antihistamines and steroids are used.

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D. by allowing the salt to evaporate .

Answer:

D.by allowing the salt to evaporate.

Answer:

the separator is a centrifugal device that separates milk into cream and skimmed

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Answer:

An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. In redox reaction the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.

In the reaction : CuO+H  

2

​

⟶Cu+H  2 O  

n the reaction H2

​

  is oxidized since it has lost electrons and Cu is reduced since it has gained electrons.

Explanation:

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By limiting reactant , 35.94 grams of precipitate will be created.

The reactant that is entirely consumed in a chemical reaction is known as a limiting reactant. The volume of product that can be created is constrained.

In other terms, the reactant that is consumed first in a chemical reaction is the limiting reactant. The reaction ceases when it is consumed, and no more product can be produced.

Excess reactants are the additional reactant(s) that are not entirely utilized. After the reaction is finished, they remain

We must first draw out the balanced chemical equation in order to address this issue:

PbBr2 (s) + 2 KNO3 (aq) = Pb(NO3)² (aq) + 2 KBr (aq)

The mole ratio of each reactant and product is represented by the coefficients in the balanced equation, as can be seen.

We must determine the moles of each reactant in order to determine which one is the limiting reactant. By dividing the mass of each reactant by its molar mass, we can accomplish this:

Pb(NO3)² moles are equal to 32.5 g / 331.21 g/mol, or 0.098 moles.

The formula for KBr's moles is 38.75 g/119.01 g/mol, or 0.325 moles.

We can now identify the reactant that is limiting by using the mole ratio from the balanced equation:

2 moles KBr per mole of Pb(NO3)²

The limiting reactant is Pb(NO3)² since we have fewer moles of it than KBr.

The mole ratio of Pb(NO3)² to PbBr2 must be used to determine how much precipitate was produced:

Pb(NO3)² = 1 mole PbBr2

Therefore, we make 1 mole of PbBr2 for every reaction of 1 mole of Pb(NO3)².

PbBr2 has a molar mass of 367.01 g/mol. The mass of PbBr2 produced can therefore be calculated as follows:

Number of PbBr2 moles divided by molar mass gives the PbBr2 mass.

PbBr2 mass equals 0.098 moles times 367.01 g/mol.

PbBr2 has a mass of 35.94 g.

As a result, 35.94 grams of precipitate will be created.

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Answer:

one is across

Explanation:

the answer is the third one

Explanation:

it just is I think