What is the concentration in molarity when 10.00 grams of k3po4 is dissolved in h2o to give 350 ml?

Answer:

Explanation:

In general, metals will lose electrons to become a positive cation and nonmetals will gain electrons to become a negative anion. Hydrogen is an exception, as it will usually lose its electron. Metalloids and some metals can be can lose or gain electrons.

Answer:

B

Explanation:

Answer:

The first one is on google

Explanation:

The equation that represents the ionization of a weak base in water is (b) NH3(aq) + H2O(l) → NH4+(aq) + OH–(aq). This equation shows the reaction between ammonia (NH3) and water (H2O) to form ammonium ions (NH4+) and hydroxide ions (OH–).

We can summarize the answer by stating that option (b) represents the ionization of a weak base in water as it shows the reaction between ammonia and water to form ammonium ions and hydroxide ions.

Now let's dive into an explanation of the answer. Ammonia (NH3) is a weak base, meaning it partially ionizes in water. In the given equation, NH3 reacts with water to produce NH4+ (ammonium ions) and OH– (hydroxide ions). The reaction can be understood as follows:

NH3 + H2O ⇌ NH4+ + OH–

Ammonia acts as a base by accepting a proton (H+) from water, resulting in the formation of the ammonium ion (NH4+) and hydroxide ion (OH–). The ammonium ion is formed when ammonia gains a proton, and the hydroxide ion is formed when water donates a proton. This equation represents the ionization of a weak base because only a fraction of ammonia molecules are converted into ammonium and hydroxide ions in water, and the reaction reaches an equilibrium state.

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Solution :

Sir Isaac Newton was a great scientist. The discoveries of the Newton change the way we see the world. Newton gave us the fundamental principles through which the entire universe is governed.

Newtons 1st law of motion states that a body moves or stays in position until and unless an external force is applied to the body.

This is the law of nature.

An example which do not support this law can be a body having a huge mass and a small boy applies force to move it but is unable to move the body.

Answer:

B! SPIRAL CAUSE ITS SPINNY AND PRETTY UWUUUUUU hehe :3

The central atom in the molecular structure of H₂SO₄ is the sulfur atom (S). This is because the sulfur atom is bonded to four oxygen atoms and two hydrogen atoms, making it the central atom in the compound.

The molecular structure of H₂SO₄ can be represented as follows:
           O

           II
H - O - S - O - H
           II
          O

In this structure, the sulfur atom (S) is in the center, surrounded by oxygen atoms (O) and hydrogen atoms (H).

Therefore, the central atom in the molecular structure of H₂SO₄ is the sulfur atom (S).

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It seems that Ryan's estimate of 4 hours is not reasonable. It should take him closer to 8 hours to mow a lawn that is twice as large as the one he can mow in 2 hours.

To determine whether Ryan's estimate is reasonable or not, we can calculate the area of each lawn and compare the results.

The area of the 50 feet by 110 feet lawn is:

Area = length x width = 50 ft x 110 ft = 5500 sq ft

Since Ryan can mow this lawn in 2 hours, his mowing rate is:

Rate = Area / Time = 5500 sq ft / 2 hrs = 2750 sq ft/hr

Now, let's calculate the area of the 100 feet by 220 feet lawn:

Area = length x width = 100 ft x 220 ft = 22000 sq ft

If Ryan's mowing rate is consistent, then the time it will take him to mow this lawn is:

Time = Area / Rate = 22000 sq ft / 2750 sq ft/hr = 8 hours

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Two properties of metal is High Electrical Conductivity and Ductility.

What is Electric Current?

High Electrical Conductivity: Metals have a high electrical conductivity, which means that they allow electricity to flow through them with ease. This makes them ideal for use in electric wires, where the current needs to flow smoothly and without interruption.

Ductility: Metals are ductile, which means they can be drawn into thin wires without breaking. This property is important for electric wires, as they need to be thin and flexible enough to be easily installed in homes and buildings.

Electric current refers to the flow of electric charge through a material. It is the rate at which electric charge flows through a conductor, measured in amperes (A). Electric current is typically carried by electrons in metals and ions in electrolytes. When a voltage difference is applied across a conductor, such as a wire, it creates an electric field that drives the movement of electric charges.

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1. Fluid compressibility (C): Fluid compressibility refers to the measure of how much a fluid's volume changes in response to a change in pressure.

2. Solution-gas/liquid ratio (SGLR): The solution-gas/liquid ratio represents the volume of gas dissolved in a given volume of liquid at a specific pressure and temperature.

3. Fluid formation volume factor (FVF): The fluid formation volume factor represents the ratio of the volume of a fluid at reservoir conditions (pressure and temperature) to its volume at surface conditions.

4. Fluid densities (ρ): Fluid densities refer to the mass per unit volume of a fluid.

5. Fluid viscosities (μ): Fluid viscosities represent the measure of a fluid's resistance to flow.

1.  Equation: C = -1/V * dV/dP

  Symbol: C

  Unit: 1/Pascal (Pa^-1)

  Correlation: The compressibility of fluids can vary depending on the fluid type. For ideal gases, the compressibility is inversely proportional to pressure.

2.Equation: SGLR = V_gas / V_liquid

  Symbol: SGLR

  Unit: Volumetric ratio (e.g., scf/bbl)

  Correlation: The solution-gas/liquid ratio is influenced by the pressure and temperature conditions, as well as the composition of the fluid.

3. Equation: FVF = V_reservoir / V_surface

  Symbol: FVF

  Unit: Volumetric ratio (e.g., bbl/STB)

  Correlation: The fluid formation volume factor depends on the composition and properties of the fluid, as well as the reservoir conditions.

4. Equation: ρ = m / V

  Symbol: ρ

  Unit: Mass per unit volume (e.g., kg/m^3)

  Correlation: Fluid densities can vary depending on the type and composition of the fluid. For example, water has a density of approximately 1000 kg/m^3.

5. Equation: No single equation; viscosity is measured experimentally using viscometers.

  Symbol: μ

  Unit: Pascal-second (Pa·s) or centipoise (cP)

  Correlation: The viscosity of a fluid is influenced by temperature and pressure. Different fluids exhibit different viscosities, ranging from low-viscosity fluids like water to high-viscosity fluids like heavy oil.

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The answer of the mathematical operation to the correct number of significant figures is 1.71x10⁻⁴

The answer of the mathematical operation to the correct number of significant figures is 7.2

The no of significant figures in the answer depends on the no of significant figures in the problem given.

It is given 1.05x10⁻³/6.135 , so the number of significant figures in 1.05x10⁻³ is 3 and in 6.135 is 4. So the answer of this operation will be rounded off to have 3 significant figures only. Since the calculated amount comes out as 0.17114x10⁻³. But it has to be rounded to 4 significant figures. So the answer will be 1.71x10⁻⁴

It is given 21-13.8 , so the number of significant figures in the operation are 2 and 3 respectively. So the calculated amount comes to be 7.2 and it already has 2 significant figures.

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A sea breeze occurs at the coast of oceans and other large water bodies during sunny days.

The term sea breeze defined as it describes a wind that blows from the ocean inland towards land. In daytime, the land surface heats up faster than the water surface.

The sea breeze occurs mostly in the spring and summer months because of the higher temperature differences between the ocean and nearby land, mostly in the afternoon when the land is at more heating from the sun.

Thus, A sea breeze occurs at the coast of oceans and other large water bodies during sunny days.

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To determine the conditions that guarantee a local minimum of the average cost function (AC(q)) at q = 27, we need to consider the relationship between AC(q) and MC(a) at that point.

To determine the conditions that guarantee a local minimum of the average cost function (AC(q)) at q = 27, we need to consider the relationship between AC(q) and MC(a) at that point.

Here are the possible conditions:

1. AC(q) = MC(a) at q = 27: If the average cost (AC) is equal to the marginal cost (MC) at q = 27, it suggests that the average cost is not changing at that point. This condition could indicate a local minimum for AC(q) at q = 27.

2. AC(q) < MC(a) for q < 27 and AC(q) > MC(a) for q > 27: If the average cost is lower than the marginal cost for q values less than 27 and higher than the marginal cost for q values greater than 27, it suggests that AC(q) is decreasing before q = 27 and increasing after q = 27. This condition could indicate a local minimum for AC(q) at q = 27.

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The formula for the phenotypic variance in a population is the sum of the genetic variance and the environmental variance.

The genetic variance refers to the variation in a trait that can be attributed to genetic factors, while the environmental variance refers to the variation that can be attributed to environmental factors such as nutrition, climate, or social factors. Phenotypic variance can be used to understand the overall variation in a trait within a population and can be a valuable tool for predicting the potential impact of selective breeding or other genetic interventions.

When an H2 value (broad-sense heritability) approaches 1.0, it means that the majority of the variation in a trait is due to genetic factors. This suggests that the trait is highly heritable and that selective breeding or other genetic interventions are likely to be effective in producing desired changes in the population.

An H2 value that approaches 0.0, on the other hand, suggests that the variation in the trait is largely due to environmental factors. This means that selective breeding or other genetic interventions are likely to have limited impact on the trait in question, and that other approaches (such as environmental interventions) may be more effective in producing desired changes. In general, the higher the H2 value, the greater the potential impact of genetic interventions on a trait.

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Of the following, a 0.2 M aqueous solution of C) NaCl will have the highest freezing point.

The freezing point of a solution depends on the number of dissolved particles, which is related to the concept of colligative properties. The greater the number of particles, the lower the freezing point will be.

In this case, we need to find the solution with the least number of particles to have the highest freezing point. When the given compounds dissolve in water, they dissociate into ions. Na₃PO₄ dissociates into 4 ions (3 Na⁺ and 1 PO₄³⁻), Mg(NO₃)₂ into 3 ions (1 Mg²⁺ and 2 NO₃⁻), NaCl into 2 ions (1 Na⁺ and 1 Cl⁻), (NH₄)₃PO₄ into 4 ions (3 NH₄⁺ and 1 PO₄³⁻), and Pb(NO₃)₂ into 3 ions (1 Pb²⁺ and 2 NO₃⁻).

As NaCl produces the least number of ions (only 2) when dissolved in water, its 0.2 M aqueous solution will have the highest freezing point compared to the other solutions. Hence. the correct answer is option C) NaCl.

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Answer:

3.01×10²⁶ molecules

Explanation:

From the question given above, the following data were obtained:

Mass of H₂ = 1 Kg

Number of molecules =?

From Avogadro's hypothesis,

1 mole of H₂ = 6.02×10²³ molecules

But 1 mole of H₂ = 2 × 1 = 2 g

Now, we shall determine the number of molecules present in 1 Kg (i.e 1000 g) of H₂ as follow:

From Avogadro's hypothesis,

2 g of H₂ = 6.02×10²³ molecules

Therefore,

1000 g of H₂ = 1000 × 6.02×10²³ / 2

1000 g of H₂ = 3.01×10²⁶ molecules

Thus, the number of molecules present in 1 Kg (i.e 1000 g) of H₂ is 3.01×10²⁶ molecules

The atom with a partially or completely filled (4f) subshell in its ground state configuration is option a. Pt (platinum).

The (4f) subshell corresponds to the 4th energy level and the f orbital within that level. To determine which atom has a partially or completely filled (4f) subshell, we need to examine the electron configuration of each atom.

Option a. Pt (platinum) has the electron configuration [Xe] 4f^(14) 5d^(9) 6s^(1). The (4f) subshell is partially filled with 14 electrons.

Option b. Xe (xenon) has the electron configuration [Kr] 5s^(2) 4d^(10) 5p^(6). It does not have electrons in the (4f) subshell.

Option c. Ba (barium) has the electron configuration [Xe] 6s^(2). It does not have electrons in the (4f) subshell.

Option d. Tc (technetium) has the electron configuration [Kr] 5s^(2) 4d^(5). It does not have electrons in the (4f) subshell.

Option e. Cs (cesium) has the electron configuration [Xe] 6s^(1). It does not have electrons in the (4f) subshell.

Therefore, the atom with a partially or completely filled (4f) subshell in its ground state configuration is option a. Pt (platinum).

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Answer: Thus X is Plutonium

Explanation:

Alpha Decay: In this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. The mass number is reduced by 4 units and atomic number is reduced by 2 units.

General representation of alpha decay :

\(_{Z}^{A}\textrm{X}\rightarrow _{Z-2}^{A-4}\textrm{Y}+_2^4\textrm{He}\)

where Z = atomic number

A= mass number

X and Y = atomic symbol of elements

\(_{Z}^{A}\textrm{X}\rightarrow _{92}^{235}\textrm{U}+_2^4\textrm{He}\)

Thus \(_{94}^{239}\textrm{Pu}\rightarrow _{92}^{235}\textrm{U}+_2^4\textrm{He}\)

Thus X is Plutonium with atomic number 94 and mass number 239

Answer:

the answer is D on edge

Explanation:

The bowl would contain approximately 2,990 grams of water.

To determine the number of grams of water in the bowl, we need to understand the specific heat capacity of water and the latent heat of fusion. The specific heat capacity of water is 4.18 J/g°C, which means it takes 4.18 joules of energy to raise the temperature of 1 gram of water by 1 degree Celsius. The latent heat of fusion for water is 334 J/g, which represents the amount of energy required to change 1 gram of water from a liquid to a solid state without changing its temperature.

Given that 12,500 joules of energy are released when the water freezes, we can calculate the amount of energy required to cool the water from 0°C to its freezing point using the specific heat capacity:

Energy = mass * specific heat capacity * temperature change

12,500 J = mass * 4.18 J/g°C * 0°C

Simplifying the equation, we find:

mass = 12,500 J / (4.18 J/g°C * 0°C) = 2,990.43 grams

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When a and b are mixed on the surface of an object, a chemical reaction takes place called a Combination reaction.

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Air velocity and effective molar mass decrease with increasing humidity. We still consider moles of gas molecules, they should not change.

Avogadro's Law states that given an ideal gas, the number of moles of gas stays constant. At equivalent temperatures, pressures, and volumes, this is accurate. The gas molecules in the containers, according to our theory, were perfect gases.

Due to humidity, the moles of gas molecules shouldn't change. As humidity rises, so do the air density and the effective molar mass. We continue to take into account the quantity of gas molecules, which shouldn't vary.

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Answer:

not enough information need more information to answer it

Answer:

Energy is measured in joules. And it is a derived unit. An example that you use in energy  is horsepower.

On the web an easy definition: Kinetic energy is motion; it is the motion of waves, electrons, atoms, molecules, substances, and objects.

Also, everything consists of energy. For example, when you turn a page from a book, that is using energy. Or when a ball is rolling down a ramp, it is using kinetic energy. You can also have potential energy, which is the energy stored in something when it isn't moving. For example, when the ball is about to roll on the ramp, it is in its starting point with potential energy.

And finally elastic energy:

Elastic energy is the mechanical potential energy stored in the configuration of a material or physical system as it is subjected to elastic deformation by work performed upon it. Elastic energy occurs when objects are impermanently compressed, stretched or generally deformed in any manner.

For example, an elastic string. When you stretch it, it is the potential anergy stored in the string you are stretching. When you release it, it flies in the air and changes to kinetic energy.

Answer:

Energy is the ability to do work (Quantitative property that must be transferred to an object to perform work on)

Measured in Joule(s)

Answer:

Venus

Explanation:

From the sun outwards is   Mercury   Venus  Earth  and then Mars

Answer:

4is the answer

Explanation:

Yes, this statement is generally true. A chlorine atom gains one electron to form an anion with a 1-charge because noble gas configurations are stable.

This is because noble gases have a full valence shell of electrons, which is the most stable electron configuration. By gaining one electron, the chlorine atom achieves the same electron configuration as the noble gas argon, making it more stable. This is why elements tend to gain or lose electrons in order to achieve the same electron configuration as the nearest noble gas.

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Wavelength of an EM wave indicates that as the wavelength decreases, the energy increases. option A.

The distance between identical points in adjacent cycles of a waveform signal propagated in space or along a wire is defined as the wavelength. This length is typically specified in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).

The frequency and energy (E) of a wavelength decrease as its size increases. These equations show that as the frequency and energy increases, the wavelength decreases. The wavelength grows longer as the frequency decreases. There are two basic types of waves: mechanical and electromagnetic.

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The number of mole of diphosphorous trioxide, P₂O₃ required for the reaction is 0.25 mole

To obtain the number of mole of diphosphorous trioxide, P₂O₃ required, we shall begin by calculating the mole in 41 g of H₃PO₃. This is shown below:

Mole = mass / molar mass

Mole of H₃PO₃ = 41 / 82

Mole of H₃PO₃ = 0.5 mole

Haven obtained the mole of H₃PO₃, we shall determine the number of mole of P₂O₃ required. Details below:

P₂O₃ + 3H₂O -> 2H₃PO₃

From the balanced equation above,

2 moles of H₃PO₃ were obtained from 1 mole of P₂O₃

Therefore,

0.5 mole of H₃PO₃ will be obtain from = (0.5 mole × 1 mole) / 2 mole = 0.25 mole of P₂O₃

Thus, we can conclude that the number of mole of P₂O₃ required is 0.25 mole

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The given electronic configuration is that of an element named dysprosium.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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