Ammonium sulphate + __________________ potassium sulfate + ammonia + water
Please fill in the blank.
Answers
Answer:
Potassium Hydroxide Solution =
or
Potassium Hydroxide =
Since we know the products and one of the reactions, we can work backward to discover what the other reactant may be.
As it is in the question, we can map the reactants and product:
Reactants Product
Ammonium Ammonia
Sulfate Sulfate
________ Potassium
________ Water
Since the reaction will yield Potassium and water, the likely reactant is Potassium Hydroxide (KOH). This is because we know that Ammonium lost a Hydrogen atom that could combine with the Hydroxide radical to form water.
This becomes clear when we consider the net ionic equation:
Ammonium sulphate + Potassium Hydroxide → potassium sulfate + ammonia + water
if we write this a balanced chemical equation:
(NH₄)₂SO₄ + 2KOH → K₂SO₄ + 2NH₃ + 2H₂O
if we write the reaction as an ionic equation
2NH₄⁺ + SO₄⁻ + 2K⁺ + 2OH⁻ → 2K⁺ + SO₄⁻ + 2NH₃ + 2H₂O
if we remove the ions that appear on both the reactant and product side (spectator ions)
2NH₄⁺ + 2OH⁻ → + 2NH₃ + 2H₂ORelated Questions
BRAINLIEST ASAP
How many electrons can be held in a sublevel l = 3?
Answers
Answer: The number of electrons held in sub-level l = 3 can be, 14 electrons.
Explanation:
The number of electrons held in sub-level l = 3 can be, 14 electrons
Azimuthal Quantum Number : It describes the shape of the orbital. It is represented as 'l'. The value of l ranges from 0 to (n-1). For l = 0,1,2,3... the orbitals are s, p, d, f...
Magnetic Quantum Number : It describes the orientation of the orbitals. It is represented as . The value of this quantum number ranges from . When l = 2, the value of will be -2, -1, 0, +1, +2.
Spin Quantum number : It describes the direction of electron spin. This is represented as The value of this is for upward spin and for downward spin.
As we are given that,
(For each sub-shell)
From this we conclude that, there are 7 orbitals and each orbital contains 2 electrons. So, the number of electrons held in sub-level l = 3 are, electrons.
Hence, the number of electrons held in sub-level l = 3 can be, 14 electrons
Answer:
Also, l=3 is an F orbital which has 14 electrons and 7 orbitals. How many total orbitals are there in sublevel 3? Answer: There are 9 orbitals in 3rd energy level. Explanation: Thus, the third level holds a maximum of 18 electrons: 2 in the s orbital, 6 in the three p orbitals, and 10 in the five d orbitals.
Explanation:
Hope this helps:) Also can I have brainliest?
Suppose that a different student obtained reaction rates for the particle-size experiment, and that these rates did not show a pattern. Check all possible sources of this error. Some of the broken tablet was not added to the water. The tablet was not crushed enough to make a substantial difference. The size of the reaction beaker was varied. The tablets were not uniform in their mass.
Answers
Answer:
A. Some of the broken tablet was not added to the water.
B. The tablet was not crushed enough to make a substantial difference.
D. The tablets were not uniform in their mass.
(Photo for proof below.)
Explanation:
All of these things affect the reaction rate of the tablet. Not adding all of the broken tablet will likely slow down the reaction rate. Not crushing the tablet enough may also affect the reaction rate because of surface area. Crushing the tablet more will increase its surface area, since more surface of the tablet is created. This will increase the reaction rate because more exposed area will react with the combined substance. Tablets not being having the same mass may speed up or slow down the reaction rate, depending on whether the tablet is bigger or smaller, since there is more or less of the tablet to dissolve.
Incase you're doubtful of my answers. Here's proof it's on Edge.
The possible sources of the error obtained in the results of different students are ; Some of the broken tablet was not added to the water, The tablet was not crushed enough to make a substantial difference, The tablets were not uniform in their mass.Hence The correct options are (A), (B) and (D)
(Image for correct answer is attached with the answer for reference)
What is an Experimental Error ?Experimental error is the difference between a measured value and its true value. In other words, it is the inaccuracy or inaccuracies that stop us from seeing an absolutely correct measurement.
Experimental error is very common and is to some degree inherent in every measurement.
Therefore, The possible sources of the error obtained in the results of different students are ; Some of the broken tablet was not added to the water, The tablet was not crushed enough to make a substantial difference, The tablets were not uniform in their mass.Hence The correct options are (A), (B) and (D)
(Image for correct answer is attached with the answer for reference)
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when ethane burns in air to form carbon dioxide and water ,heat energy is released. Explain why energy is released
Answers
Energy is released because it is a combustion reaction.
Combustion reaction -
Hydrocarbon bonds are broken during combustion events, and more energy is always released during the formation of water and carbon dioxide bonds than was consumed to break the initial hydrocarbon bonds. Burning materials that are primarily made of hydrocarbons produces energy because of this. This is an exothermic reaction.
2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O + Heat
(ethane)
In the process of burning, or combustion, the reactant takes up oxygen and oxidizes it, releasing energy in the form of heat and light. It happens quickly. Along with the energy created during burning, carbon dioxide and water vapor are also produced.
Hence heat and light which are forms of energy are released during combustion reaction.
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The table shows several combination reactions and the
estimated reaction energy based on bond breaking and forming energies. What pattern do you notice concerning the energy for combination reactions?
Inside the Table:
S(s)+O2(g)——> SO2(g)
Reaction: -550
2K(s)+Cl2(g)——>2KCl(s)
Reaction: -430
H2(g)+I2(s)—-> 2HI(g)
Reaction:-7
Answers
It takes energy to dissolve connections. Energy is released as a result of the creation of bonds.
What is meant by Chemical energy?Chemical substances emit energy as they undergo a chemical reaction and change into other substances, and this energy is known as chemical energy. Batteries, food, and fuel are a few examples of the storage media for chemical energy. Chemical compounds' bonds contain energy. Chemical reactions have the potential to release chemical energy, frequently in the form of heat; these kinds of reactions are referred to as exothermic. Some of the thermal energy that is required to drive a reaction can be stored as chemical energy in newly created bonds.Energy is the ability to carry out work. Potential, kinetic, thermal, electrical, chemical, nuclear, and other forms may all exist for it.To learn more about energy, refer to:
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Which of the following statements is true about the relationships between photon energy, wavelength, and frequency?
Group of answer choices
The photon frequency is proportional to energy and inversely proportional to wavelength.
The photon frequency is inversely proportional to energy and proportional to wavelength.
The photon frequency is proportional to energy and proportional to wavelength.
The photon frequency is inversely proportional to energy and inversely proportional to wavelength.
Answers
Answer: The Answer is A.
Explanation:
The amount of energy is directly proportional to the photon's electromagnetic frequency and thus, equivalently, is inversely proportional to the wavelength. The higher the photon's frequency, the higher its energy. Equivalently, the longer the photon's wavelength, the lower its energy.
Hope this Helps!
The photon energy, wavelength, and frequency are the characteristic of the waves and particles. "The photon frequency is proportional to energy and inversely proportional to wavelength." Thus, option A is correct.
What is photon energy?Photon energy has been defined as the energy constituted by the photon of the atom. It is given by the product of Planck's constant and wave frequency. The frequency of the photons is in inverse relation to the wavelength. It is given as,
E = hυ = h c / λ
Here, E is energy, h is Planck's constant, c is the speed of light, υ id frequency, and λ is the wavelength.
On the other hand, the frequency is in direct relation to the energy. The higher the frequency of the photons higher will be its energy.
Therefore, option A. frequency is inversely proportional to the wavelength.
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Which correctly lists the three elements that geologists measure to determine the age of an organism's remains ?
O argon, nitrogen, and carbon-12
O carbon-14, nitrogen, and carbon-12
O nitrogen, potassium, and carbon-14
O carbon-12, potassium, and argon
Answers
Answer:
carbon-12, potassium, and argon
Explanation:
The three elements that geologists measure to determine the age of an organism's remains are carbon-12, potassium, and argon.
So, the second option is correct one.
How scientist determine age of the organism?The scientist determine the age of an organism by radiocarbon dating and nitrogen.After death of organisms, total carbon -14 content slowly disappearsIn radiocarbon dating, amount of carbon-14 left in organism is calculated relative to carbon-12 .To learn more about elements here,
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204 g of sugar dissolves in 100g of water at 20 C. How much will dissolve in 200 g of water at 20 C?
Answers
Answer:
100 g of water dissolves 204 g of sugar. Therefore, 25 g of water would dissolve 204×25÷100 =51g of sugar at 20°C.
Explanation:
Answer: 408g of sugar
Explanation: the amount of water increased by 2
so, multiply: 204 times 2= 408
Tim and Jose are moving furniture. Tim pushes a 150 kg sofa with 300N force. As a result, Sofa's acceleration was __________ according to Newton's Second Law of motion. (F = ma)
Answers
Answer:
As a result, Sofa's acceleration was 2 m/s² according to Newton's Second Law of motion.
Explanation:
Newton's Second Law, also called the Fundamental Law of Dynamics, indicates that: "The change in motion is directly proportional to the printed motive force and occurs according to a straight line along which that force is printed." This means that the acceleration of a moving object depends on the amount of force applied to it at a given moment, in order to modify its trajectory or speed.
So, Newton's second law states that a body accelerates if a force is applied to it. The acceleration of an object is directly proportional to the sum of all the forces acting on it and inversely proportional to the mass of the object:
F = m * a
where "m" is the mass of the object, "a" is the acceleration and "F" is the net force, that is, the vector sum of all the forces acting on the object.
In this case:
F=300 Nm=150 kga=?Replacing:
300 N = 150 kg*a
Solving;
300 N÷ 150 kg=a
2 m/s²=a
As a result, Sofa's acceleration was 2 m/s² according to Newton's Second Law of motion.
What led to a change in carbon dioxide in biodome files
Answers
Answer:
The decrease of decomposers. The decrease of decomposers led to a change in carbon dioxide in biodome files.
What is the purpose of chemistry lab?(solution)
Answers
1. Some reactions will present an actual yield lower than the theoretical yield, and this can occur due to many situations, a couple of the reasons why that we can list is that some reactions don't have the reactants actually reacting to form the products, and another reason why is the loss of reactants in the process for many possible situations.
4. According to the solubility curve, if we have 30 grams of NH4Cl at 50°C, the reaction will be unsaturated
Occurs in many complex organisms such as plants, animals and fungi
Answers
Answer:
DNA
Explanation:
The eukaryotic cell participates in the formation of complex organisms and contains a nucleus, cytoplasmic organelles, and a cytoskeleton.
In a eukaryotic cell, DNA is contained in a compartment called the nucleus, which is enclosed by a membrane.The answer should be DNA based on the wording of the question. Hopefully this helped a little bit.
(c) The figure below shows two alkane molecules.
Methane
HIC-H
HICIH
Methane
Hexane
Hexane
HHHHHH
LIITIT
H-C-C-C-C-C-C-H
IITTIT
H. H HHHH.
The table below shows the melting points and boiling points of methane and
hexane.
Melting point in Boiling point in
°C
°C
-183
-95
-162
69
Compare the structure and properties of methane and hexane.
(1)
Answers
Methane is a gas which is colourless and and odorless. It is a hydrocarbon with formula CH₄. Where as Hexane is an alkane containing 6 carbon atoms. Its molecular formula is C₆H₁₄. For the structure refer the figure given below.
Coming to the properties there are both physical and chemical properties.
Hexane is a colourless volatile liquid and undergoes combustion reaction, being a higher hydrocarbon it undergo thermal cracking.
It is commonly used as solvents, biodiesel production etc. Boiling point is 69⁰C and melting point is 95⁰C.
Methane is a gas which is colourless and odorless. It is lighter in air, slightly soluble in water, it is flammable. boiling point is -162⁰C and melting point is -183⁰C.It is used as fuel, it is used in explosives.
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Sound Wave A is moving through a medium that is decreasing in temperature. Sound Wave B is moving from a liquid to a gas medium. Which statement can be made about both waves? They will speed up. They will increase the density of their medium. They will slow down. They will decrease the density of their medium.
Answers
Answer: they will slow down
Answer:
C-they will slow down
Explanation:
Which phrase provides the best definition of mass movement?
the movement of material caused by erosion
the slow flow of a glacier as it moves through the valley of a mountain
the movement of large amounts of soil and rock debris down a slope
the fast movement of a boulder rolling down a slope
Answers
Answer:
the movement of large amounts of soil and rock debris down a slope
Explanation:
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Read the following reactions.
Reaction 1: NaCl(s) → Na+(aq) + Cl−
Reaction 2: CaCO3(s) → CaO(s) + CO2(g)
Which reaction leads to an increase in entropy?
a
Only Reaction 1
b
Only Reaction 2
c
Both Reaction 1 and 2
d
Neither Reaction 1 nor 2
Answers
Answer: C
Explanation:
Reaction 1 starts off with one mole of reactant and produces 2 moles of product. The increase in the number of moles, along with the fact that aqueous compounds are more disordered than solid compounds, increases the disorder and thus entropy.
Reaction 2 starts off with 1 mole of solid and produces 1 mole of solid and one mole of gas. The increase in the number of moles, along with the fact that gases are more free and disordered than solids, increases the disorder and thus entropy.
What is the molar ratio of CO2 to C2H2
Answers
The release of a large amount of sewage and other organic wastes into a river would likely result in a sharp:_______
Answers
The release of a large amount of sewage and other organic wastes into a river would likely result in a sharp increase in the levels of organic matter.
When sewage is dumped into a river, it results in a high level of organic waste. This can be dangerous since it reduces the dissolved oxygen in the water. This occurs because bacteria decompose the organic matter, which uses up oxygen. When the levels of dissolved oxygen fall too low, fish and other aquatic organisms die.
The water's pH level is also lowered by the discharge of sewage into a river. The acids and other chemicals present in the waste are responsible for this. The water may become more acidic as a result of this, which can be harmful to both the water and the aquatic life that it contains. Sewage can be very harmful to human health as well. It may contain disease-causing bacteria and viruses that can spread quickly from one person to another.
Therefore, the release of a large amount of sewage and other organic wastes into a river would likely result in a sharp increase in the levels of organic matter.
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Identify the key differences between the Articles of Confederation and the U.S. Constitution. Then explain which document created the better system of government for the new nation, and support your response with the differences you have identified.
22 POINTS + WILL RATE BRAINLEST!!!!!
Answers
The key differences between the Articles of Confederation and the U.S Constitution is the article of confederation is sovereignty in states and the constitution is expand the governments authority.
The document created the better system of government for the new nation is the US constitution.
The Article of confederation , the state have stronger power than the central power and in the US constitution , the power of central government is stronger than the states. The important development was the establishment of three departments. There are three departments of government that is legislative , executive and judicial.
Thus, The key differences between the Articles of Confederation and the U.S. Constitution is the article of confederation is sovereignty in states and the constitution is expand the governments authority.
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What happens during evaporation? A liquid changes to a gas. A liquid changes to a solid. A gas changes to a liquid. A solid changes to a liquid.
Answers
Answer:
A liquid changes to gas
Explanation:
"Evaporation is the process by which water changes from a liquid to a gas or vapor. Evaporation is the primary pathway that water moves from the liquid state back into the water cycle as atmospheric water vapor."
Answer:
B
Explanation:
Giving the answer
Determine how many oxygeng atoms are in 5.00 g of sample of sodium dichromate, na2cr2o7
Answers
The number of oxygen atoms is in 5.00 g of sample of sodium dichromate, Na₂Cr₂O₇ is 1.125 x 10²³ atoms.
What is sodium dichromate?Sodium dichromate is an inorganic compound. It is sued in tanning and mental illness.
The molar mass of sodium = 23 gm
The molar mass of Cr = 51.99 gm
The molar mass of oxygen = 16 gm
Molar mass of Na₂Cr₂O₇ = 2(23) + 2(51.99) + 7(16) = 261.98 gm
Number of moles in 7 gm = mass / molar mass = 7 / 261.98 = 0.0267 moles
1 mole of Na₂Cr₂O₇ contains 7 moles of oxygen, therefore:
The number of moles of oxygen in 0.0267 moles = 0.0267 x 7 = 0.1869 moles
Thus, the number of atoms = 0.1869 x 6.02 x 10^23 = 1.125 x 10²³ atoms.
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1. The molar solubility of Ag2SO3 in pure water is 1.55 x 10^-5 M. Use this information to calculate the Ksp for Ag2SO3.
What is the molar solubility of Ag2SO3 in 0.0250 M AgNO3?
Answers
To calculate the Ksp for Ag2SO3, we use the following equation:
Ag2SO3(s) ⇌ 2Ag+(aq) + SO3^(2-)(aq)
Ksp = [Ag+]^2[SO3^(2-)]
Given the molar solubility of Ag2SO3 in pure water, we can calculate the solubility product constant (Ksp) as follows:
1.55 x 10^-5 = (2x)^2(x)
where x is the molar solubility of Ag2SO3 in pure water and 2x is the molar concentration of Ag+ ions.
Solving for x, we get:
x = 4.01 x 10^-6 M
Therefore, the Ksp for Ag2SO3 is:
Ksp = (4.01 x 10^-6)^2(2x10^-5) = 3.22 x 10^-17
To determine the molar solubility of Ag2SO3 in 0.0250 M AgNO3, we need to consider the common ion effect. AgNO3 is a soluble salt that dissociates in water to produce Ag+ and NO3- ions. Since the Ag+ ion is a common ion with the one produced by Ag2SO3, it will decrease the solubility of Ag2SO3.
Using the ICE table, we can calculate the new molar solubility of Ag2SO3 in the presence of 0.0250 M Ag+ ions:
Ag2SO3(s) ⇌ 2Ag+(aq) + SO3^(2-)(aq)
I 0.0250 0 0
C -2x +2x +x
E 0.0250-2x 2x x
Ksp = [Ag+]^2[SO3^(2-)]
Ksp = (2x)^2(x)
Ksp = 4x^3
Qsp = [Ag+]^2[SO3^(2-)]
Qsp = (0.0250)^2(4x)
Since Qsp < Ksp, the reaction is not at equilibrium and more Ag2SO3 can dissolve. Therefore, we can assume that 2x << 0.0250 and approximate the expression for Qsp as:
Qsp ≈ (0.0250)^2(4x) = 2.5 x 10^-6
Now, we can use the relationship between Qsp and Ksp to calculate the new molar solubility of Ag2SO3:
Ksp = Qsp
4x^3 = 2.5 x 10^-6
x = 2.77 x 10^-5 M
Therefore, the molar solubility of Ag2SO3 in 0.0250 M AgNO3 is 2.77 x 10^-5 M.
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Forensic means _______ the forum
Answers
Please answer the following question using the data below: H2O vapor content: 13 grams H2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10 ∘
C 52 grams at 30 ∘
C What is the dew point for the conditions listed above? LCL 3π5 25C Relative Humidity =100%
Answers
Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$
Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$
The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.
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The equation c = 2.95 g show how much it costs to buy gas at a gas station on a certain day. n the equation c represents the cost in dollars and g represents how many gallons of gas were purchased.
Write down at least four (gallons of gas cost) pairs that fit this relationship.
Answers
Along with maintaining structure and reproduction, what is the third item that all living things face as a challenge? Question 3 options: How to socialize appropriately How to social distance effectively How to get enough sleep. How to get enough energy for daily life
Answers
Answer:
So the answer is gonna be how to get enough energy for your daily life
Explanation:
Sometimes the human body cant get enough energy from the food and protein the food gives out.
Why are certain elements placed into the same column on the periodic table?
Answers
Answer:
Similar chemical characteristic/behavior
Explanation:
Certain elements placed into the same column on the periodic table, because of a similar chemical characteristic/behavior.
The day to day condition of atmosphere is known as
A) climate
B) weather
C) climactic zone
D) atmosphere pressure
Answers
Answer:
d) atmosphere pressure
Answer:
B.) weather
Explanation:
weather is constantly changing everyday and each day presents a new condition:)
Which element has four energy levels?
cesium (Cs)
rubidium (Rb)
potassium (K)
sodium (Na)
Answers
Answer:
Potassium (K)
Explanation:
Out of the four options, Potassium is the only one to fill a total of 4 energy levels.
Both Cesium (Cs) and Rubidium (Rb) fill more than three energy levels, with Cesium filling 6 and Rubidium filling 5.
Sodium (Na) only fills 3 energy levels.
Thus, that leaves Potassium (K), which has 4 energy levels.
Hope this helped ^-^
calculate the amount of heat released from combustion of 2 g of wood. the heat capacity of the bomb calorimeter is 9.96 kj/°c .
Answers
If the heat capacity of the bomb calorimeter is 9.96 kj/°c, then the amount of heat released from combustion of 2 g of wood is 39.84 kJ.
To determine the amount of heat released from combustion of 2 g of wood, you need to use the formula
Q = C × ΔT Where:Q is the heat released or absorbed in joules (J)C is the heat capacity of the bomb calorimeter (given as 9.96 kJ/°C)ΔT is the change in temperature in degrees Celsius (°C)We can assume that all the heat released from the combustion of the wood is absorbed by the calorimeter, so we can use the heat capacity of the calorimeter to calculate the heat released. Since the calorimeter absorbs the heat, the value of Q will be negative (i.e. the heat is released).
Given: Mass of wood = 2 g Heat capacity of the bomb calorimeter = 9.96 kJ/°C First, we need to calculate the change in temperature. This can be done by measuring the temperature of the calorimeter before and after combustion. Let's assume that the temperature increases by 4.0 °C.ΔT = 4.0 °C Now, we can calculate the heat released: Q = C × ΔTQ = (9.96 kJ/°C) × (4.0 °C)Q = 39.84 kJ
Therefore, the amount of heat released from combustion of 2 g of wood is 39.84 kJ.
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viết các PTHH sau CuO + h20
Answers
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:
hope this helps