what is the net ionic equation for the reaction between aqueous solutions of sr(no3)2 and k2so4?

Answer:

Zinc oxide is  used in the manufacture of  many products such as paints, rubber, cosmetics, pharmaceuticals, plastics, inks, soaps, batteries, textiles and electrical equipment.

Explanation:

Answer:

velocity = 100 km/h

Explanation:

To calculate the velocity given the distance travelled and the time taken, we can use the following formula:

\(\boxed{\mathrm{velocity = \frac{distance \ travelled}{time \ taken}}}\).

In the question, we were told that Ayana travelled 60 km in 0.6 h. Using this information and the formula above, we can calculate Ayana's velocity:

velocity = \(\frac{60 \ km}{0.6 \ h}\)

             = 100 km/h

Therefore, her velocity was 100 km/h.

Answer:

i didn't understand the question properly but i think the answer will be that amount of hydrogen will decrease while amount of oxygen will be same

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Electronegativity on the periodic table typically rises from left to right across a period and falls as you move down a group. Hence, the right response is (B).

Electronegativity rises over time and falls over a group. Because the valence shells of the atoms (metals) at the left of the table are less than halfway full, they tend to lose electrons and have poor electronegativity.

Atoms become more electronegativity as you move from left to right throughout a period. Atoms have a larger nuclear charge and a smaller covalent radius as you progress across the periodic table from left to right.

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The mass of 8.12 x 10²³ molecules of CO₂ is D. 59.39 grams.

The mass of 8.12 x 10²³ molecules of CO₂ gas can be calculated using Avogadro's number and the molecular weight of CO₂. The molecular weight of CO₂ is the sum of the atomic masses of one carbon atom and two oxygen atoms: 12.011 u + (2 x 15.999 u) = 44.009 u.

To find the number of moles, divide the given number of molecules (8.12 x 10²³) by Avogadro's number (6.022 x 10²³ molecules/mol): (8.12 x 10²³ molecules) / (6.022 x 10²³ molecules/mol) ≈ 1.35 mol.

Now, multiply the number of moles by the molecular weight of CO₂: 1.35 mol x 44.009 g/mol ≈ 59.4 g. Therefore, the mass of 8.12 x 10²³ molecules of CO₂ gas is approximately 59.4 g, which corresponds to option D (59.39 g).

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Based on the given pH scale, we can only conclude that baking soda is a weak base (option A).

According to the given pH scale, we can determine the strengths of various substances as acids or bases. Let's analyze each option:

A) Baking soda is listed with a pH of 9, which indicates it is a weak base. Bleach is not specifically mentioned in the given pH scale, so we cannot determine its classification based on the information provided. Therefore, option A cannot be concluded.

B) Coffee is listed with a pH of 4, indicating it is a weak acid. Drain cleaner is listed with a pH of 14, which suggests it is a strong base. Thus, option B is incorrect.

C) Oven cleaner is not specifically mentioned in the given pH scale, so we cannot determine its classification. Battery acid, on the other hand, is listed with a pH of 0, which indicates it is a strong acid. Therefore, option C cannot be concluded.

D) Soft drinking water is listed with a pH of 5, indicating it is a weak acid. Soapy water is not specifically mentioned, so we cannot determine its classification based on the information provided. Hence, option D is incorrect.

In summary, based on the given pH scale, we can only conclude that baking soda is a weak base (option A). The information provided does not allow us to determine the strengths of bleach, oven cleaner, or soapy water.

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Note- The question seems to be incomplete and the complete question isn't available in the search engine.

When adding ice to a hot soup, it is generally recommended to use ice made from potable or drinkable water.

The water used to make the ice should be clean and free from any contaminants that could affect the taste or safety of the soup.

It is advisable to use filtered or purify water to make the ice to ensure that it is of good quality. This helps prevent any unwanted flavors or impurities from transferring to the soup.

Using tap water can also be acceptable if it meets the drinking water standards in your area and is considered safe for consumption. However, if you have concerns about the quality of your tap water, using filtered water is a safer option.

Ultimately, the goal is to add ice made from water that is safe and of good quality to avoid any negative impact on the taste or safety of the soup.

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Option E 70.4 g. we need to use the definition of the percent concentration of a solution, which is the ratio of the mass of the solute to the total mass of the solution, expressed as a percentage:

% concentration = (mass of solute / total mass of solution) x 100%

A 6.10% aqueous solution of K3PO4 means that in 100 grams of the solution, there are 6.10 grams of K3PO4 and 93.90 grams of water. This is because the percent concentration of a solution is defined as the ratio of the mass of the solute to the total mass of the solution, expressed as a percentage:

% concentration = (mass of solute / total mass of solution) x 100%

In this case, we are given the percent concentration of the solution, which is 6.10%, and we can use this information

To find the mass of water in 75.0 grams of the solution, we can set up a proportion:

mass of water / total mass of solution = % concentration / 100

mass of water = total mass of solution x % concentration / 100

Substituting the given values, we get:

mass of water = 75.0 g x 6.10 / 100 = 4.575 g

Therefore, there are 4.575 grams of water in 75.0 grams of the 6.10% aqueous solution of K3PO4.

However, the answer options given in the question are in significant figures, so we need to round the answer to the correct number of significant figures.

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The  birth of lead from its ores involves several  way, including crushing and grinding the ore to a fine greasepaint, followed by a flotation process to separate lead- containing minerals from other  contaminations.  

The first step in  rooting  lead from its ore is to crush and grind the ore into a fine greasepaint. This increases the  face area of the ore, easing the  posterior chemical  responses.

The powdered ore is  also  subordinated to a flotation process, where specific chemicals are added to  produce a frothy admixture. The  head contains lead- containing minerals, which can be separated from the rest of the ore.  

The  head flotation process relies on the differences in  face  parcels of the minerals.

By widely attaching to the  face of the lead- containing minerals, the  head carries them to the  face, while the  contaminations sink to the bottom.

The  head is  also collected and further reused to  gain  supereminent concentrate.  

The  supereminent concentrate undergoes  fresh refining processes  similar as smelting and refining to  gain pure lead essence.

Smelting involves heating the concentrate with a reducing agent,  similar as coke or carbon, to separate the lead from other  factors. The molten lead is  also  meliorated by removing any remaining  contaminations.

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The extraction of lead from its ore includes several steps. The pyrometallurgical process, which involves heating the ore in a blast furnace, is the most commonly used method.

Here's an overview of the extraction process:

        2PbS + 3O2 → 2PbO + 2SO2

        The formed lead oxide (PbO) is then reduced further.

        a) Lead oxide reduction:

        PbO + C → Pb + CO

        b) Impurity removal: CaCO3 → CaO + CO2

        CaO + SiO2 → CaSiO3

Overall, the extraction of lead from its ore involves crushing, roasting, smelting, and refining steps to obtain pure lead metal.

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The question is -

Extraction of lead from its ore. Explain the process.

After benzocaine is mixed with hydrochloric acid, it will be 4-aminobenzoic acid and soluble in the water.

Benzocaine, sold beneath the counter emblem called Orajel amongst over-the-counters, is an ester nearby ones over the counter normally used as a topical ache reliever or in cough drops. it's a far over-the-counter lively factor in many ones over counter ointments consisting of merchandise for oral ulcers.

Benzocaine is used to relieve aches and itching resulting from conditions that include sunburn or different minor burns, insect bites or stings, poison ivy, poison oak, poison sumac, minor cuts, or scratches.

Benzocaine is a local over-the-counter used in pain manage management, and it's far over-the-counter ester neighborhood ones over-the-counter elegance of medication. This pastime describes over-the-counter symptoms, actions, and contraindications for benzocaine as a valuable agent in coping with ache control.

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a) The rate of formation of CO2 is 9.3 mol/L.s.b) The rate of formation of H2O is 10.92 mol/L.s.c) The rate of reaction of O2 is 35.34 mol/L.s.

What is hexane? Hexane is a chemical compound that is made up of 6 carbon atoms and 14 hydrogen atoms. Hexane is an alkane with the chemical formula C6H14. Hexane is a component of gasoline with a low boiling point.The balanced chemical equation for the combustion of hexane is:2C6H14(g)+19O2(g)→12CO2(g)+14H2O(g).What is the rate of formation of CO2?The rate of formation of CO2 is calculated using stoichiometry of the reaction.The molar ratio of CO2 produced to C6H14 consumed is:12 mol CO2/2 mol C6H14= 6 mol CO2/mol C6H14Since the rate of reaction of C6H14 is given as 1.86 mol/L.s, the rate of formation of CO2 will be:6 mol CO2/mol C6H14 × 1.86 mol/L.s = 9.3 mol/L.sTherefore, the rate of formation of CO2 is 9.3 mol/L.s.What is the rate of formation of H2O?The molar ratio of H2O produced to C6H14 consumed is:14 mol H2O/2 mol C6H14 = 7 mol H2O/mol C6H14The rate of formation of H2O will be:7 mol H2O/mol C6H14 × 1.86 mol/L.s = 10.92 mol/L.sTherefore, the rate of formation of H2O is 10.92 mol/L.s.What is the rate of reaction of O2?The molar ratio of O2 consumed to C6H14 consumed is:19 mol O2/2 mol C6H14 = 9.5 mol O2/mol C6H14The rate of reaction of O2 will be:9.5 mol O2/mol C6H14 × 1.86 mol/L.s = 17.67 mol/L.sTherefore, the rate of reaction of O2 is 17.67 mol/L.s.

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Answer:

Japan, China, the U.S., Indonesia, Chinese Taipei and South Korea have been named by Pew Charitable Trusts on a “shame list” of countries responsible for overfishing tuna in the Pacific. According to Pew, the “Pacific 6” are responsible for 80 percent — 111,482 metric tons in 2011 — of the annual catch of bigeye tuna.

Hope it will help you

Answer:

"0.24 J/g.k" is the appropriate solution.

Explanation:

Mass of substance,

m = 110.00 g

Heat,

q = 396 J

Change in temperature,

ΔT = 15.0°C  

Now,

The specific heat will be:

⇒  \(q=ms \Delta T\)

On putting the given values, we get

⇒  \(396=110.00\times s\times 15.0\)

⇒  \(396=s\times 1650\)

⇒      \(s=\frac{396}{1650}\)

⇒         \(=0.24 \ J/g.k\)

Answer:

Sodium sulfide is the chemical compound with the formula Na 2 S, or more commonly its hydrate Na 2 S·9H 2 O. Both are colorless water-soluble salts that give strongly alkaline solutions. When exposed to moist air, Na 2 S and its hydrates emit hydrogen sulfide , which smells like rotten eggs.

I'm not sure if it's right but it's a guess because of the 2Na.

That is sodium carbonate, Na₂CO₃.

Answer:

A. 7

(assuming the water is neutral)

The main reservoirs of the carbon cycle are the atmosphere, oceans, land (including vegetation and soils), and fossil fuels. In these reservoirs, carbon exists in both inorganic and organic forms.

The inorganic carbon cycle involves the exchange of carbon dioxide (CO2) between the atmosphere and oceans through processes like photosynthesis and respiration.

Organic carbon, on the other hand, is found in living organisms, dead organic matter, and soil organic matter. It is cycled through processes such as decomposition and consumption by organisms. The interactions between the inorganic and organic carbon cycles occur primarily in the biosphere, where photosynthesis converts inorganic carbon into organic carbon compounds. While inorganic carbon is primarily in the form of CO2, organic carbon is present in complex organic molecules. Both forms of carbon play crucial roles in energy transfer, nutrient cycling, and climate regulation.

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If the threshold energy of the reaction 2016O(n, γ) 170 is 15.6 MeV, then the atomic mass of 170Ol can be calculated.

Given:Atomic mass of Ol (15.996415 amu)Atomic mass of neutron (1.008665 amu)M (Ol) = 15.996415 amuM (neutron) = 1.008665 amu Threshold energy of the reaction, E = 15.6 MeV The threshold energy (E) is the minimum amount of energy that an incoming neutron must have to trigger the nuclear reaction or the amount of energy that is needed to supply for the reaction to proceed.

The atomic mass of 170Ol can be calculated as follows:E = [M (n) + M (2016O) - M (170O)] x c²Where c = speed of light, M (n) = mass of neutron, M (2016O) = mass of oxygen-16M (170O) = mass of the oxygen-17, the product of the reaction.Rearranging the above equation:  M (170O) = [M (n) + M (2016O) - E/c²]Thus, M (170O) = [1.008665 + 15.994915 - (15.6 x 10⁶ eV/ (3.0 x 10⁸ m/s)²)] amuM (170O) = 16.98803 amuTherefore, the atomic mass of 170Ol is 16.98803 amu.

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The Molarity of \(H_2SO_4\) is 0.05798 M

To solve this problem, we need to use the equation:

Molarity of \(H_2SO4\) = (moles of NaOH) / (volume of \(H_2SO4\) in liters)

First, we need to calculate the moles of NaOH used in the neutralization reaction:

moles of NaOH = molarity of NaOH x volume of NaOH in liters
moles of NaOH = 0.1840 M x 0.03907 L
moles of NaOH = 0.00719688 mol

Next, we need to convert the volume of \(H_2SO4\) from milliliters to liters:

volume of H2SO4 = 124.26 mL / 1000 mL/L
volume of H2SO4 = 0.12426 L

Now we can plug in the values we have into the equation to calculate the molarity of \(H_2SO4\):

Molarity of H2SO4 = 0.00719688 mol / 0.12426 L
Molarity of H2SO4 = 0.05798 M

Therefore, the molarity of the sulfuric acid solution is 0.05798 M.

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The molarity of the sulfuric acid solution is 0.0322 M.

To calculate the molarity of the sulfuric acid solution, we need to know how many moles of sulphuric acid were present in the solution that was neutralized by the NaOH solution.

We can find this by using the balanced chemical equation for the reaction between sulfuric acid and sodium hydroxide:

\(H_2SO_4 + 2NaOH == > Na_2SO_4 + 2H_2O\)

From the balanced equation, we can see that one mole of sulfuric acid reacts with two moles of sodium hydroxide. So the number of moles of sulfuric acid in the solution that was neutralized is:

moles of H₂SO₄ = (moles of NaOH) / 2

To calculate the moles of NaOH that were added, we can use the molarity of the NaOH solution and the volume that was added:

moles of NaOH = molarity x volume (in liters)

Since the volume of NaOH solution is given in milliliters, we need to convert it to liters by dividing by 1000:

moles of NaOH = (0.2049 M) x (39.07 mL / 1000 mL/L)

moles of NaOH = 0.008 M

Now we can calculate the moles of sulfuric acid:

moles of H2SO4 = (0.008 M) / 2

moles of H2SO4 = 0.004 mol

Finally, we can calculate the molarity of the sulfuric acid solution by dividing the moles of sulfuric acid by the volume of the solution in liters:

molarity of H2SO4 = moles of H2SO4 / volume of solution (in liters)

We need to convert the volume of the solution from milliliters to liters by dividing by 1000:

molarity of H2SO4 = 0.004 mol / (124.26 mL / 1000 mL/L)

molarity of H2SO4 = 0.0322 M

Therefore, the molarity of the sulfuric acid solution is 0.0322 M.

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Answer:

It would not be able to survive

Explanation:

A cell can only survive by exchanging materials with its environment. exchange of materials is necessary for life.

For instance, a cell gives out carbon dioxide and takes in oxygen which is necessary for life.

Most cells depend on exchange of materials with their environment for nutrition.

When an object of mass mo is released from rest above the spring, it falls and then makes contact with the top of the spring with a speed v0. The spring then compresses such that the object reaches a position x0 below the spring’s equilibrium position, where the object comes to rest. The object is then directed upward by the spring until it is no longer in contact with the spring. The object then continues upward. The object-spring-earth system has zero gravitational potential energy at the instant shown in figure 2. All frictional forces are considered to be negligible.

According to the law of conservation of mechanical energy, the sum of kinetic and potential energies in the system should be constant. Thus, when the object falls, it loses gravitational potential energy and gains kinetic energy. The kinetic energy gained is given as1/2 mo v0^2Where mo is the mass of the object, and v0 is the speed with which the object comes in contact with the spring. When the spring is compressed to x0 below its equilibrium position, the kinetic energy is converted into the spring potential energy, which is given as1/2 k0 x0^2Where k0 is the spring constant, and x0 is the displacement of the spring from its equilibrium position. The spring potential energy is at its maximum value when the spring is fully compressed and the object comes to rest.At this point, all the kinetic energy has been converted into spring potential energy. The object then starts moving upward. At the point where the spring has been fully extended, the object's potential energy is at its maximum value. However, since all the kinetic energy has been converted into spring potential energy, the object's potential energy is equal to the spring potential energy at the point where the spring is fully compressed and the object comes to rest.The object's potential energy is given bymghWhere m is the mass of the object, g is the acceleration due to gravity, and h is the height above some arbitrary reference level.

Thus, the spring potential energy when the spring is fully compressed is equal to the object's potential energy when it reaches its maximum height above the equilibrium position. The initial kinetic energy of the object is equal to the sum of the maximum potential energy of the spring and the maximum potential energy of the object.

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Answer:

5.30 is the probability of a no longer exists in a singie than the first half in a video of a different characters are

Answer:

ice water by its temperature it makes you want more to drink. while room temperature feels like you need more and more water to not feel dehydrated

Explanation:

Answer:

0.086

Explanation:

got it on acellus

The mass of the dry solute recovered from the given data is 0.086 g.  Option C

To determine the mass of the dry solute recovered, we need to subtract the mass of the boat from the mass of the boat with the dry solute.

Given the data provided:

Boat Mass: 0.730 g

Boat + Solution: 0.929 g

Boat + Dry: 0.816 g

To find the mass of the dry solute, we subtract the boat mass from the boat + dry mass:

Mass of Dry Solute = (Boat + Dry) - (Boat Mass)

Mass of Dry Solute = 0.816 g - 0.730 g

Mass of Dry Solute = 0.086 g

Therefore, the correct answer is c) 0.086 g.

The mass of the dry solute recovered from the given data is 0.086 g. It is important to note that the mass of the dry solute is obtained by subtracting the mass of the boat from the mass of the boat with the dry solute, as the boat mass represents the weight of the empty boat or container used in the experiment.

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Answer:

A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles. It would take the shape of its container. Particles can move about within a liquid,  they are packed densely enough that volume is maintained.

Explanation:

The equilibrium system composition for the cracking of pure n-butane to produce olefins at 800 K and 2.0 bar was calculated assuming ideal gas behavior. The mole fractions of the products were found to be: C₂H₄ = 0.0227, C₂H₆ = 0.0784, C₃H₆ = 0.1664, CH₄ = 0.7325.

The given chemical reactions are:

C₄H₁₀ ⇌ C₂H₄ + C₂H₆

C₄H₁₀ ⇌ C₃H₆ + CH₄

The equilibrium system composition at these conditions can be calculated using the equilibrium constant (Kp) expression:

Kp = (P(C₂H₄) x P(C₂H₆)) / P(C₄H₁₀)

Kp = (P(C₃H₆) x P(CH₄)) / P(C₄H₁₀)

where P is the partial pressure of the respective gas.

At equilibrium, the total pressure of the system will be:

Ptotal = P(C₂H₄) + P(C₂H₆6) + P(C₃H₆) + P(CH₄) + P(C₄H₁₀0)

Given that the feedstock is pure n-butane, the initial partial pressure of C₄H₁₀ will be 2.0 bar.

Assuming that x mol of C₄H₁₀ is consumed, then x mol of C₂H₄ and C₂H₆ or C₃H₆ and CH₄ will be produced.

Using the ideal gas law, the partial pressure of each gas can be calculated based on the number of moles of gas present and the total volume of the system.

Assuming that the total volume of the system is 1 L and the temperature is constant at 800 K, the partial pressures of each gas at equilibrium can be calculated as follows:

For the first reaction:

Kp = (P(C₂H₄) x P(C₂H₄)) / P(C₄H₁₀)

Kp = 3.3 x 10⁻²

Let x be the number of moles of C₄H₁₀ consumed at equilibrium.

Then, the number of moles of C₂H₄ and C₂H₆ produced will be x.

Using the ideal gas law, the partial pressures of each gas can be calculated:

P(C₄H₁₀) = (2.0 - x) bar

P(C₂H₄) = P(C₂H₆) = x bar

For the second reaction:

Kp = (P(C₃H₆) x P(CH₄)) / P(C₄H₁₀)

Kp = 4.4 x 10⁻⁴

Let y be the number of moles of C₄H₁₀ consumed at equilibrium.

Then, the number of moles of C₃H₆ and CH₄ produced will be y.

Using the ideal gas law, the partial pressures of each gas can be calculated:

P(C₄H₁₀) = (2.0 - y) bar

P(C₃H₆) = P(CH₄) = y bar

At equilibrium, the total pressure of the system will be:

Ptotal = P(C₂H₄) + P(C₂H₆) + P(C₃H₆) + P(CH₄) + P(C₄H₁₀)

Ptotal = 2x + 2y

Substituting the calculated partial pressures and the total pressure into the above equation, we get:

Ptotal = 4.28 bar

Therefore, the equilibrium system composition at these conditions will have partial pressures of:

P(C₄H₁₀) = 1.9 bar

P(C₂H₄) = P(C₂H₆) = 0.1 bar

P(C₃H₆) = P(CH₄) = 0.04 bar.

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Answer:

Phrase

Explanation:

Phrases don't have both, but clauses do.

"Hypotonic solution," refers to a solution with the highest water concentration due to its lower solute concentration compared to the other options, leading to water influx into cells.

A hypotonic solution would be most likely to have the highest water concentration. In a hypotonic solution, the solute concentration is lower than that inside the cell or compared to another solution. As a result, water tends to move into the cell or the solution to equalize the concentration.

When a cell is placed in a hypotonic solution, water molecules will move into the cell through the process of osmosis. This influx of water increases the water concentration inside the cell, leading to cell swelling or even bursting in extreme cases.

Compared to hypertonic and isotonic solutions, a hypotonic solution has a lower solute concentration, allowing for a higher concentration of water molecules. This results in a higher water concentration in the solution. It's important to note that the concept of tonicity is related to the relative solute concentrations between two solutions and their effect on cell osmosis. In this case, a hypotonic solution is characterized by a higher water concentration compared to the other options.

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Answer:

This is called combination reaction

Answer:

A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion.

Explanation: