if the force is 200N and 5m/2 whats the pressure

Answer:

yes

Explanation:

Answer:

It weighs about 0.819 kg.

Answer:

wind and water erosion

Answer:

C is the answer

d) The concentration of carbonic acid will increase if the pressure of carbon dioxide is increased in the container.

According to Le Chatelier's principle, if the pressure of carbon dioxide is increased in the container, the system will shift in a direction that reduces the pressure. In this case, it means the equilibrium will shift towards the formation of more carbonic acid. The increase in pressure will cause more CO₂ molecules to dissolve in water, leading to an increase in the concentration of carbonic acid.

The reaction CO₂ + H₂O ⇌ H₂CO₃ is an equilibrium reaction, and changing the pressure affects the equilibrium position. By increasing the pressure of CO₂, the equilibrium will favor the formation of more carbonic acid to alleviate the increased pressure. Therefore, the concentration of carbonic acid will increase as a result of the increased CO₂ pressure. The other options (a, b, c, e) are not accurate as they do not take into account the impact of the increased CO₂ pressure on the equilibrium.

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Answer:

I believe it's the second one

Explanation:

The big bang theory and the theory of natural selection.

The theory of continental drift and the theory of sea floor spreading from the past contributed to today's plate tectonic theory. Therefore, option A is correct.

Continental drift is the theory that the Earth's continents have moved relative to one another over geologic time, giving the appearance of "drifting" across the ocean floor.

Plate tectonics caused continental drift over millions of years. Plate tectonics also explained how plate movement causes volcanoes and earthquakes, as well as how continent collisions create massive mountain ranges.

In the early twentieth century, a scientific theory known as continental drift was proposed to explain this migration of continents. That theory was initially dismissed, but it paved the way for another theory known as plate tectonics, which scientists now accept as an explanation for how the Earth's continents move.

Thus, option A is correct.

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According to chemical equilibrium, the value of equilibrium constant is 1.33.

Chemical equilibrium is defined as the condition which arises during the course of a reversible chemical reaction with no net change in amount of reactants and products.A reversible chemical reaction is the one wherein the products as soon as they are formed react together to produce back the reactants.

At equilibrium, the two opposing reactions which take place take place at equal rates and there is no net change in amount of the substances which are involved in the chemical reaction.At equilibrium, the reaction is considered to be complete . Conditions which are required for equilibrium are given by quantitative formulation.

The equilibrium constant is given as, K=[C]/[A][B]²=[0.760]/[0.290][1.40]²=1.33.

Thus, the value of equilibrium constant is 1.33.

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Answer:pruducts Explanation:

Answer:

The Reactants

Explanation:

A P E X

Moles of Na_2O

2 mols Na_2O produces 1 mol sodium carbonate.

1 mol sodium oxide produces 0.5mol sodium carbonate

Moles of sodium carbonate

Molar mass

Mass

Answer:

88.58 inches

Explanation:

You would just divide 225 by 2.54

Answer:

88.5827

Explanation:

The impact of e-commerce on commercial real estate is significant. E-commerce sales have grown steadily, accounting for a considerable portion of overall sales.

The growth of e-commerce has fueled the demand for distribution spaces, specifically distribution centers and warehouses, which play a crucial role in the supply chain and logistics of packaging and shipping goods to customers. These spaces are sought after by e-commerce giants, who prefer locations near large cities while still providing ample room for large buildings. Suburban areas, such as Katy, Brookshire, and Waller near Houston, are experiencing significant growth in the establishment of distribution centers.

On the other hand, the rise of online shopping has posed challenges for brick-and-mortar retailers. Many physical retail spaces have struggled to remain open or have had to downsize. As a result, there is a trend towards smaller retail spaces, which require less inventory in-store. This trend encourages a combination of online and in-store shopping, known as hybrid shopping. The Covid-19 pandemic further accelerated this trend as consumers sought the convenience and safety of online shopping with options like curbside or in-store pick-up. Even as restrictions ease, this approach is expected to remain popular.

To adapt to the changing retail landscape, integrating technology into physical retail spaces has become crucial. Technology tools, such as mobile apps, can enhance the shopping experience, offer special promotions, and provide valuable data on customer behavior. Retailers, especially large lifestyle shopping centers, have been proactive in blending technology with consumer experiences to stay relevant and attract customers.

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Ethanol (C2H5OH) is the chemical term for the form of alcohol found in alcoholic beverages.

It is a colorless, volatile, flammable liquid with a strong odor. Ethanol is the product of fermentation and is used to produce alcoholic beverages. It is also used as an antiseptic, a fuel, and an additive in many commercial products. Ethanol is absorbed by the human body and can have a variety of effects on the body, including intoxication, slowed reaction time, and impaired judgment. In large doses, ethanol can cause alcohol poisoning and other serious health problems.

Ethanol is the main active ingredient in alcoholic beverages, and the amount present can range from less than 5% to more than 20%. The amount of ethanol in an alcoholic beverage can affect its taste, potency, and potential for intoxication. The higher the ethanol content, the higher the potential for intoxication.

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Answer:

  85.8 g

Explanation:

The molar mass of BaCl₂ is 208.233 g/mol, so 210.1 g is about ...

  210.1/208.233 ≈ 1.009 mol

The molar mass of K is about 39.089 g/mol, so 45 g is about ...

  45/39.089 ≈ 1.1509 mol

The balanced equation seems to be ...

  BaCl₂ + 2K  ↔ 2KCl + Ba

This reaction requires 2 moles of potassium for each mole of barium chloride, so the available potassium limits the reaction. The result is as many moles of potassium chloride as there are moles of potassium.

The 1.1509 moles of KCl, at 74.551 g/mol will have a mass of about 85.8 g.

The reaction produces 85.8 g of KCl.

Answer:

The absolute molar entropy of aqueous urea (S°) is approximately 322 J/(mol･K).

To calculate the absolute molar entropy (S°) of aqueous urea, we need to use the standard entropy change (∆S°) and the standard molar entropy (S°) of urea.

The equation relating these values is:

∆S° = ΣS°(products) - ΣS°(reactants)

For the dissolution of urea, we have:

∆S°(soln) = S°(urea in solution) - [S°(urea) + S°(water)]

Rearranging the equation and substituting the known values:

S°(urea in solution) = ∆S°(soln) + S°(urea) + S°(water)

S°(urea in solution) = 70.1 J/(mol･K) + S°(urea) + S°(water)

Now, we need the standard molar entropy values for urea and water. The standard molar entropy values for urea (S°(urea)) and water (S°(water)) are usually provided in tables. The value for water is approximately 69.9 J/(mol･K), and the value for urea is around 182 J/(mol･K).

Substituting the values:

S°(urea in solution) = 70.1 J/(mol･K) + 182 J/(mol･K) + 69.9 J/(mol･K)

S°(urea in solution) ≈ 322 J/(mol･K)

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Explanation:

Commonly used drying agents in organic laboratories are calcium chloride, sodium sulfate, calcium sulfate and magnesium sulfate all in their anhydrous form.

Answer:

Copper (II) oxide will react with sulfuric acid to create water and copper (II) sulfate. This reaction could be classified as a double displacement reaction or a neutralization reaction (metal oxides have basic properties in water).

so basically a neutralization reaction.

The volume of pure gold has a mass of 65.4g and a density of 9.3g/cm3 is   3.3886 cm3.

Solution :

∵ density = mass ÷ volume

⇒ volume = mass ÷ density

∴ volume of pure gold = (mass of gold) ÷ (density of gold)

                                      = 65.4 ÷ 19.3

  The volume of pure gold = 3.3886 cm3

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Distillation would be used to separate the mixture of two liquids having boiling points of  45°C and 86°C.

Separating the component substances from a liquid mixture by evaporation and condensation is called as distillation. It is one of the most common techniques for the purification and identification of organic liquids.

Distillation is used for separating a mixture of miscible liquids into its components and when the difference in the boiling points of the liquid is more than 20-25 degree Celsius. It is a physical process as it involves phase change from liquid to gas.

Following are the steps involved in distillation:

1. Converting desired liquid from a mixture into vapor.

2. Condensing the liquid that is purified.

3. Finally, collecting the condensed liquid

There are four types of distillation namely, Fractional, simple, Vacuum and Steam Distillation.

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Answer:

One change of state happens when you add energy to the substance. This change of state is called melting. By adding energy to the molecules in a solid the molecules begin to move quicker and can break away from the other molecules.

Answer:

J/kg.oC

Explanation:

The unit of specific heat capacity of a substance is J/kg*°C (joule per kilogram-degree)

\(\boxed{\sf Molarity=\dfrac{Moles}{Vol\:in\:L}}\)

Moles of CaCO_3:-

Come to formula stated first

\(\\ \tt\Rrightarrow Volume=\dfrac{Moles}{Molarity}\)

\(\\ \tt\Rrightarrow volume=\dfrac{0.008}{0.4}\)

\(\\ \tt\Rrightarrow volume=0.02\ell=20m\ell\)

To determine the concentration of ions in the cathode's solution of a galvanic cell, you need to use the Nernst equation:

E_cell = E°_cell - (RT/nF) * ln(Q)
where:
E_cell = non-standard cell potential
E°_cell = standard cell potential
R = gas constant (8.314 J/mol*K)
T = temperature in Kelvin (337 K)
n = number of electrons transferred in the reaction
F = Faraday's constant (96,485 C/mol)
Q = reaction quotient, which is the ratio of the concentration of products to reactants.
Unfortunately, you did not provide values for the non-standard cell potential (E_cell), standard cell potential (E°_cell), number of electrons transferred (n), or the concentration of ions at the anode. Please provide these values so I can help you calculate the concentration of ions in the cathode's solution.

Concentration is a measure of the amount of solute dissolved in a solvent. It can be expressed in various units such as molarity, molality, mass/volume, and percent. Concentration plays a crucial role in chemical reactions and properties such as osmosis, colligative properties, and solubility.

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Answer:

Become Visible

Explanation:

1) Heat absorbed by water

q= heat absorbed

m= mass (grams)

c=specific heat of water is 4.18 J/g-°C

ΔT= final temperature - initial temperature

2) Plug in known values

3) Heat transferred.

Heat absorbed by water is the heat released by the sample.

4) Heat transfer by sample

q= heat transfer

m= mass (grams)

ΔHf=enthalpy of fusion

5) Plug in known values and solve for ΔHf.

The enthalpy of fusion of the sample is 43.18J/g.

1) Determine the mass of zirconium

Convert moles of zircon into moles of zirconium

Convert moles of zirconium into mass of zirconium (g)

2) Determine the mass of Silicon

Convert moles of zircon into moles of silicon

Convert moles of silicon into mass of silicon (g)

3) Determine the mass of Oxygen

Convert moles of zircon into moles of oxygen

Convert moles of oxygen into mass of oxygen

The mass of zirconium is 30.87 g

The mass of silicon is 9.504 g

The mass of oxygen is 21.66 g

Two possible sources of systematic (determinate) error in the experiment are; Incorrect calibration of volumetric glasswareIncorrect mass of NaCl

To calculate the concentration of NaCl in the resulting solution in mg/L NaCl, we can use the formula; Concentration (mg/L) = (Mass of solute ÷ Volume of solution in L) × 1000 g / 1 mg NaCl is present in the stock solution of 25 mL. So, the mass of NaCl in the solution would be;0.0842 g ÷ 25 mL = 0.00337 g/mL. Now, in the resulting solution, a 1.00 mL aliquot of the stock solution is transferred to a 50.00 mL volumetric flask and diluted to volume. Therefore, the volume of the resulting solution is 50.00 mL. We will substitute these values in the formula, Concentration (mg/L) = (0.00337 g/mL ÷ 50 mL) × 1000 g / 1 mg concentration (mg/L) = 67.4 mg/L. Therefore, the concentration of NaCl in the resulting solution in mg/L NaCl is 67.4 mg/L.7.  Concentration = 67.4 mg/LTolerance = 4.28 mg/LTotal concentration = 67.4 + 4.28 mg/L = 71.68 mg/LWe round off this value to one decimal place; Total concentration = 71.7 mg/LTherefore, the concentration of NaCl in the resulting solution using propagation of error through the calculation is 67.4+0.4 mg/L.8. Two possible sources of random (indeterminate) error in the experiment are; Errors in temperature measurement. Errors in measurement of water volume. Two possible sources of systematic (determinate) error in the experiment are; Incorrect calibration of volumetric glasswareIncorrect mass of NaCl.

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Answer:

The pH of a solution is defined as the negative logarithm (base 10) of the concentration of hydrogen ions [H+]. The concentration of hydroxide ions [OH-] can be calculated using the equation Kw = [H+][OH-], where Kw is the ion product constant for water, which is equal to 1.0 × 10^-14 at 25°C.

To find the [OH-] of a solution with pH 10.88, we first find the [H+]:

pH = -log[H+]

10.88 = -log[H+]

[H+] = 10^(-10.88) = 1.4 × 10^(-11) M

Now we can calculate the [OH-]:

Kw = [H+][OH-]

1.0 × 10^-14 = (1.4 × 10^-11)[OH-]

[OH-] = (1.0 × 10^-14) / (1.4 × 10^-11) = 7.1 × 10^-4 M

Therefore, the [OH-] of the solution is 7.1 × 10^-4 M.

Explanation: