write the net ionic equation for the reaction between agno3aq and na2so4aq. be sure to include states of matter in your answer.

Answer:

It is a Binary Compound

Explanation:

Answer:

[binary compound]

Explanation:

A(n) A binary compound is one that contains two, and only two, elements.

The molarity of the solution is 66.207 M.

1) number of moles of Na2SO4

number of moles = mass/molar mass = 534/142 = 3.7605633 moles

To precipitate 3.7605633 moles of Na2SO4 we need the same amount of moles of BaCl2 = 3.7605633 moles.

2) molarity of BaCl2 solution

concentration = number of moles/volume =  3.7605633/0.0568

= 66.20710 M

Molarity is defined as the total number of moles of solute in one kilogram of solvent. Molarity is also called molarity.

The symbol for molarity is a capital M. In chemistry, a solution is a mixture of two or more substances in which none of the substances are chemically changed. The formula for calculating molarity is the ratio of the moles of solute for which the molarity is calculated and the volume of solvent used to dissolve the particular solute.

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Wavelength is chosen by analyzing the spectrogram.

Wavelength can be defined as the distance between two successive crests or troughs of a wave. It is measured in the direction of the wave.

A spectrogram gives a going for walks show of a sound signal because it takes place in real time, a spectrum, however, offers us a photograph of the sound at a particular factor in time. A spectrum can permit you to see.

Spectrograms map out sound in a comparable way to a musical rating, only mapping frequency rather than musical notes. Seeing frequency energy allotted over the years in this manner allows us to genuinely distinguish each of the sound factors in a recording, and their harmonic shape.

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The semi-crystalline polymer of the same composition, a completely amorphous polymer is expected to the crystallites scatter light.

Crystallization of polymers is a manner associated with the partial alignment of their molecular chains. these chains fold together and shape ordered areas called lamellae, which compose larger spheroidal systems named spherulites.

Semi-crystalline plastics can be taken into consideration for a selection of applications. choosing a plastic material for use in excessive temperature surroundings calls for a cautious assessment of fabric residence information. View our interactive Thermoplastics Triangle to evaluate substances.

Polyethylene is a partially crystalline solid whose residences are exceedingly dependent on the relative content of the crystalline section and amorphous section, i.e., crystallinity. Polyethylene is a polymer polymerized from monomeric ethylene.

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HCl⟶H++Cl−

HI⟶H++I−

According to, the molarity of H+ is the same as HCl, because it is a strong acid and the mole ratio. So, I added the molarity of both acids: 0.15 M+0.055 M=0.205 M for H+ in solution.

pH= −log [H+]

pH= −log [0.205]

pH= 0.689

cHI(H+)=c(HI)cHCl(H+)=c(HCl)

Now you need to determine the amount of the protons in each solution with

n=c⋅V.

You have to add the amount of protons in each solution and determine the combined volume.

ntot(H+)=nHI(H+)+nHCl(H+)Vtot=V(HI)+V(HCl)

To calculate the pH of the resulting concentration, just take the negative logarithm.

pH=−logctot (H+) = −log[ntot (H+) Vtot]

pH is the negative logarithm of hydrogen ion concentration in a solution.

It determines the acidity and basicity of the solution.

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The initial volume of the argon gas sample at a constant temperature is 36.24 L.

Let the initial pressure and initial volume be P and V respectively

And the final pressure and volume be P' and V' respectively

At constant temperature, for the given sample,

P = 3.34 atm

V = ?

P' = 8.18 atm

V' = 14.8 L

The ideal gas law is PV = nRT,

At constant T (temperature), PV = constant

According to Boyle's law, the product of the pressure and volume of an ideal gas at constant temperature is constant.

For ideal gas argon at a constant temperature, using Boyle's law we get

P * V = P' * V'

3.34 * V = 8.18 * 14.8

V = 121.06 / 3.34

∴ V = 36.24 L

Thus at 3.34 atm and constant temperature, the volume of a sample of agon gas is 36.24 L

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Out of all the compounds - ch2ch2 (Ethylene), ch3ch3 (Ethane)and hcch the compound with the shortest bond length is hcch (Ethyne)

Bond length is the equilibrium distance between the nuclei of two groups or atoms that are bonded to each other.

Bond length depends upon bond strength and is inversely proportional to it, therefore longer the length of bond, less the bond strength.

CH3-CH3 is Ethane, the C-C bond is a single bond.

CH2=CH2 is Ethylene, the C-C bond is a double bond.

CHCH is Ethyne, the C-C bond is a triple bond.

As we know, Bond length and bond strength gets shorter and stronger as the number of bonds between the two atoms increases. Here single bond has the largest bond length and triple has the shortest bond length.

So, in order of C-C bond length (longest to shortest) you have ethane > ethylene > ethyne

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When a piece of I2 in 50 ml of water is placed then another piece of I2  of the same mass in C6H14 is placed then hydrogen bonding is formed in water and a strong London dispersion force occurs.

C6H14 is a straight chain alkane with 6 carbon atoms with no double or triple bond.this is non polar. So, London dispersion forces exist.this is the force that exists between all molecule.this is the weakest intermolecular forces.the boiling point of C6H14 increases as their atomic mass increases due to stronger London dispersion force.

Water has strong intermolecular forces.in this,hydrogen bonding and dipole moment created by the strong electronegative oxygen and hydrogen.water has hydrogen bond,dipole induced dipole forces and London dispersion forces.

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We interrogate the equilibrium,

S=2.32×10−4⋅mol⋅L−1

what is solubility?

Solubility in chemistry refers to the capacity of one material, the solute, to create a solution with another substance, the solvent. Insolubility is the solute's inability to create such a solution.

The extent of a substance's solubility in a certain solvent is commonly assessed as the concentration of the solute in a saturated solution, one in which no more solute can be dissolved.

At this stage, the two compounds are considered to be in solubility equilibrium. Some solutes and solvents may have no such limit, in which case the two substances are said to be "miscible in any amounts."

We interrogate the equilibrium

Mg(OH)2⇌Mg+2  +2HO−

And Ksp=[Mg2+][−OH]2

And now if we call the solubility of Mg(OH)2 S, then by definition, S=[Mg2+], and 2S=−OH.

And thus Ksp=S×(2S)2=4S3

And so (finally!), S=3√Ksp4

S=3√5.0×10−114=2.32×10−4⋅mol⋅L−1

so therefore the solubility was found to be 2.32×10-4.mol.L-1

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The total translational kinetic energy of 17 moles of an ideal gas is 198,242  j .  the gas temperature in kelvin is 937 K.

Given  that :

total translational kinetic energy = 198242 J

moles = 17 mol = 17 × 6.023 × 10²³

Total kinetic energy =  ( 3/2 KT ) × no. molecules

   198242  = ( 3/2) ( 1.38 × 10⁻²³ ) T × 17 × 6.023 × 10²³

T = 198242  / 211.84

T = 937 K

Thus, The total translational kinetic energy of 17 moles of an ideal gas is 198,242  j .  the gas temperature in kelvin is 937 K.

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Step 1: Begin with a balanced chemical equation and starting amounts for each reactant.

Step 2: Convert mass of each starting reactants to moles.

Step 3: Calculate the number of moles used for each reactant. is the limiting reagent.

what is limiting reaction?

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The empirical formula of this compound is ClO₇.

If a 5.00 g sample of a compound containing only chlorine and oxygen contains 1.94 g of chlorine, then the mass of its oxygen is the difference between the mass of the sample and the mass of its chlorine.

mass compound = mass oxygen + mass chlorine

mass oxygen = mass compound - mass chlorine

mass oxygen = 5.00 g - 1.94 g

mass oxygen = 3.06 g

Determine the number of moles of each component by dividing the mass by its respective molar mass.

moles oxygen = mass oxygen / MM

moles oxygen = 3.06 g / 15.9994 g/mol

moles oxygen = 0.1912571721

moles chlorine = mass chlorine/ MM

moles chlorine = 1.94 g / 70.9060 g/mol

moles chlorine = 0.02736016698

Get the ratio between the two components to determine its empirical formula.

moles oxygen : moles chlorine = 0.1912571721 : 0.02736016698

moles oxygen : moles chlorine = 7 : 1

Hence, he empirical formula of this compound is ClO₇.

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After alpha particles were bombarded onto sheets of gold, the Rutherford model was developed. This model proposed that the atom was composed of a small, dense, positively charged core called the nucleus, with electrons orbiting around this nucleus.

The Rutherford model is a model of the atom that was proposed by Ernest Rutherford in 1911. It was based on his experiments with alpha particles. In the model, the atom is composed of a small, dense nucleus with positive charge surrounded by electrons that orbit the nucleus. The Rutherford model is unable to explain the stability of atoms and the nature of the electromagnetic force, but it did provide a starting point for the development of more sophisticated models of the atom.

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Answer:

Exoplanets

Explanation:

Exoplanets are planets beyond our own solar system. Thousands have been discovered in the past two decades, mostly with NASA's Kepler Space Telescope.

The attraction between the electron and the atom's nucleus grows stronger as it travels closer to it. The electron goes to a lower potential energy. The electron transition involves the most in n=6 and n=2.

More energy must be changed for a larger movement. The electric charge of the electron, a subatomic particle, is a negative one elementary charge. Due to their lack of known components or substructure, electrons, which are part of the first generation of the lepton particle family, are typically considered to bepotential energy.

The energy that an object retains due to its position in relation to other objects, internal stresses, electric charge, or other factors is known as potential energy in physics.

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Chemical reaction - 0.823 grams O2 could be produced from 2.45 g of ko2 and 4.48 g of CO_2

What is Chemical reaction?

Chemical reactions happen absolutely everywhere. While we sometimes associate chemical reactions with the sterile environment of test tubes and laboratories, nothing is farther from the truth. In fact, a vast number of transformations are creating a dizzying and almost incomprehensible series of new matter and energy changes in our world every second of every day. In nature, chemical reactions can be much more difficult to control and in some cases much more complex than in the laboratory, and generally occur whether you want it or not!In the woods A raging fire, the slow rusting process of iron over the years in the presence of oxygen and water, or the delicate ripening of fruit on a tree, the transformation of various chemicals, etc... (reactants ) into another group of substances (products) is a so-called chemical reaction.

Moles KO2 = 2.44g/(71.1g/mole) = 0.034 moles

Moles CO2 = 4.45g/(44g/mole) = 0.10 moles

4KO2 + 2CO2 —> 2K2CO3 + 3O2

The reaction requires twice as many moles of KO2 than moles of CO2.  That means 0.10 mole of CO2 would consume 0.20 moles of KO2.  But we only have 0.034 moles of KO2, so the limiting reagent is KO2.  

There are 3 moles of O2 produced for every 2 moles of CO2 consumed.  In this case we'll assume all of the KO2 reacts, so that should result in (3/4) * (0.034moles) = 0.025 moles of O2 .

To get the mass, 0.025 mole * (32g/mole) = 0.823 grams O2

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Start by assigning oxidation numbers to the atoms that take part in the reaction.

notice that the oxidation state of zinc changes from zero on the reactants' side to +2 on the products' side, which means that it is being oxidized.

Now take a look at nitrogen's oxidation state. Notice that some nitrogen atoms keep their oxidation state constant, i.e. +5 on both sides of the equation, but that other nitrogen atoms change their oxidation state from +5 to -3, which implies that they are being reduced. Balance the nitrogen atoms first by multiplying the nitric acid by 2. Since you're in acidic solution, you can balance the hydrogen atoms by adding protons,

H

+

, to the side that lacks hydrogen, and oxygen atoms by adding water molecules to the side that lacks oxygen.

Since you only need to balance the hydrogen atoms present on the reactants' side.

Hope that can start you off! And hope that helps!

The balanced chemical equation of the given reaction is written as follows:

[tex]\rm Zn(s)+2HNO_3(aq) \rightarrow Zn(NO_{3})_2(aq)+H_2(g)[/tex]

A balanced chemical equation is a symbolic representation of a chemical reaction that shows the exact number of atoms of each element present in both the reactants and the products.

In a balanced equation, the total number of atoms of each element on the reactant side of the equation must be equal to the total number of atoms of that element on the product side of the equation.

This ensures that the law of conservation of mass is upheld, which states that matter cannot be created or destroyed in a chemical reaction, only rearranged.

The balanced chemical equation is written above.

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The final temperature of the mixed water is 17.43°C.

Principle of Calorimeter:

The body at a higher temperature releases heat while the body at a lower temperature absorbs heat. The principle of calorimetry indicates the law of conservation energy, i.e. the total heat lost by the hot body is equal to the total heat gained by the cold body.

From the calorimeter principle we have:

heat loss by hot water = Heat gained by the cold water

The formula for the heat gained or loss:

Q = m.c.ΔT

Q = heat gained or loss

c = specific heat

ΔT = temperature change

m1 = 100g

m2 = 75g

m2c ΔФ2 = m1c ΔФ1

75 × (71.6-T) = 100× ( T - 23.2)

5370 - 75T = 100T - 2320

175 T = 3050

T = 17.43°C

Therefore the final temperature is 17.43°C

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Answer:

A planetary scientist who works at john hopskin university

Explanation:

The calculations possible using only 28.02 g/mol as a conversion factor are:

One of many ways to do a conversion in chemistry is by using the conversion factor. It is an arithmetical multiplier for converting a quantity of a unit to the equivalent expressed in another.

Given the conversion factor of 28.02 g/mol (molar mass of nitrogen), we could calculate the grams of  N2 in 5.03 x 10^20 moles of nitrogen gas. We also can calculate the moles of N2 molecules in 3.94 grams of nitrogen gas by using 28.02 g/mol as the conversion factor.

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Potassium is the element that has the ground state electronic configuration, 1s22s22p63s23p64s1.

The electronic configuration describes the distribution of electrons in their atomic orbital. In an electronic Configuration, subshells that contain electrons, and the total number of electrons in each of the subshells are written in a sequence.

It is used to find out the valency of an element, Predict the properties of a group of elements and Interpret atomic spectra.

The subshells are s, p, d, and f and the total number of electrons that they can hold is 2, 6, 10, and 14 respectively.

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False. As the reaction proceeds toward equilibrium, the concentrations of [tex]H_2[/tex] and [tex]I_2[/tex] gradually decrease, while the concentration of HI gradually increases.

In a chemical reaction, an equilibrium is reached when a reaction that proceeds in both ways has both forward and backward reactions at an equal rate.

For example, consider the reaction below:

A + B <---> C + D

At equilibrium, the rate of formation of A and B will be equal to the rate of formation of C and D.

Now, let us apply this to the reaction:

[tex]H_2 + I_2 < --- > 2HI[/tex]

Since the reactants are  [tex]H_2[/tex] and [tex]I_2[/tex], initially, their concentrations will decrease while the concentration of the product, HI will increase. This will continue until the reaction reaches an equilibrium.

Thus, that the concentrations of  [tex]H_2[/tex] and [tex]I_2[/tex] will gradually increase while the concentration of HI will gradually decrease as the reaction approaches an equilibrium is false.

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A balloon filled with room temperature air and then put in a sunny place expands slightly due to a rise in temperature and this is because the molecules of air are moving faster.

Charles' law is an experimental gas law that describes how gases expand when heated. A modern statement of Charles' Law is that Kelvin temperature and volume are directly related if the pressure on a dry gas sample is held constant .

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Combustion of coal is the  largest source of anthropogenic carbon dioxide emission worldwide given by the carbon footprints.

What are carbon footprints?

Carbon footprints are the total amount of emissions of green house gases by a product, place or an event. The main of this is to take actions against the emission of greenhouse gases and reduce them. It is estimated that burning of 1 Kg coal can give about 2.42Kg of carbon dioxide.

Combustion of coal releases more carbon dioxide than burning petroleum products or natural gas in the whole worldwide. Carbon dioxide is the most important greenhouse gas contributing to the global warming. Coal is considered to be having the highest carbon footprints out of all the energy sources.

Therefore, coal combustion gives out the highest carbon footprint giving the highest carbon dioxide worldwide.

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If a 10.0 ml sample of this buffer is diluted to 1000 ml with water,the ph of the diluted buffer is 9.26.

pH of Buffer Solution can be calculated as :

pH = pKa  - log ( [ Salt ] / [ Base ] )

Since Kb = 1.8 x 10-5  

then , pKb = 4.74

Since , pKa  +  pKb = 14  \Rightarrow pKa = 9.26

Initial concentration of NH3  and (NH4)+  is 1 M.

Now 10 mL of the sample is taken and diluted to 1000 mL

Since , M1V1 = M2V2

Where M1 is the Molarity of the solution before dilution and V1 is the volume taken  ( M1 = 1 M ; V1 = 10 mL)

M2 is the Molarity of the solution after dilution and V2 ( V2 =1000 mL ) is the Final volume  of the solution.

M2 = M1V1 / V2    \Rightarrow  M2 = ( 1 x 10 ) / 1000 = 0.01 M .

Final concentration of NH3  and (NH4)+  in the sample is 0.01 M.

then , [ Salt ] / [ Base ]  = 1

Since ,   log( 1 ) =0

Then pH = pKa = 9.26

The pH of the Buffer solution is 9.26.

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Answer:

What happens when carbon dioxide increases and oxygen decreases? Increasing carbon dioxide and decreasing oxygen make it harder for deep-sea animals to ‘breathe’ About one third of the carbon dioxide that humans produce by burning fossil fuels is being absorbed by the world’s oceans, gradually causing seawater to become more acidic.

Explanation:

Hope this helps

The answer is 12.5 mL.

Solution:

M, 6.00M          V₁ =?

M2 = 3.00M,    V₂ = 25.0mL

M1V1 = M2 V2/M1

V1 = M2V2 M,

V1 = 25.0X3.00/6.00

∴ V1 = 12.5 mL

The initial concentration of the resulting solution is 2 molar which is the volume multiplied by the concentration. The volume of the starting solution is therefore 2,500 ml × 2.25 mol. Calculate the number of moles of HCl dissolved in a given volume of acid by reacting an acid with CaCO3.

This is essentially a double exchange reaction with the decomposition of one of the products. To determine the amount of stock solution required divide the number of moles of glucose by the molarity of the stock solution.

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By activating M₂ muscarinic receptor, acetylcholine released at the heart will slow the rate of action potential generation.

Acetylcholine is the neurotransmitter used at the neuromuscular junction—in other words, it is the chemical that motor neurons of the nervous system release in order to activate muscles. This property means that drugs that affect cholinergic systems can have very dangerous effects ranging from paralysis to convulsions.

An action potential occurs when a neuron sends information down an axon, away from the cell body. Neuroscientists use other words, such as a "spike" or an "impulse" for the action potential. The action potential is an explosion of electrical activity that is created by a depolarizing current.

Acetylcholine slows the heart rate by activating the M2 muscarinic receptor (M2R) that, in turn, opens the acetylcholine-activated potassium channel (IK, ACh) to slow the firing of the sinus node.

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The excess reactant in the preparation of pizza from the given materials is tomato sauce; option B

In a chemical reaction, the excess reactant is the reactant that is left over at the end of the reaction.

The excess reactant is present in a quantity greater than the mole ratio of the reactant to form a product.

Considering the given reaction and the mole ratio of the reaction:

Recipe for  1 pizza =  1 crust, 1 scoop of tomato sauce, 0.5 cups of shredded mozzarella cheese, and 9 slices of pepperoni.

Amount present =  2 crusts, 4 scoops of tomato sauce, 1 cup of cheese, and 9 slices of pepperoni.

Excess reactant = tomato sauce.

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Answer:

Cheese

Explanation:

Did the lab

Silicon dioxide is found in sand, quartz glass, and silica gel packets found in packaging of shoes and electronics. the formula for silicon dioxide is SiO₂.

The formula for silicon dioxide is SiO₂.  silicon dioxide is called as silica. silicon dioxide is commonly found in quartz. it is transparent solid. it is used in adhesives, ceramics. it is also used in agriculture chemicals. white and whitish yellow as sand or powder. it is the main part in optical fiber.

Thus, Silicon dioxide is found in sand, quartz glass, and silica gel packets found in packaging of shoes and electronics. the formula for silicon dioxide is SiO₂.

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