When a gas condenses into the liquid, or the solid melts into the liquid, the phase change occurs. During a phase change the heat is released.
When a gas condenses into the liquid, or the solid melts into the liquid this phase change is called the condensation. The Condensation is the process when the molecules of the gas cool down. When the molecules lose the heat, they lose the energy and will slow down. They come closer to each other gas molecules. Finally the molecules are collect together to form the liquid.
Thus, in the process of the condensation the heat energy is released.
To learn more about phase change here
https://brainly.com/question/11490613
#SPJ4
which of the structures given is consistent with this 1h nmr spectrum?
The 1H-NMR spectrum provided belongs to structure II.
What is the purpose of 1H NMR spectroscopy?
The structural analysis of molecules is typically accomplished using the spectroscopic method known as proton nuclear magnetic resonance (1H NMR).
Since they are symmetrical to one another and share the same bonding, both methyl groups are identical. The spectrum of the 1H NMR contains a total of three signals.
What is the NMR's range?
Depending on the magnetic field intensity and the particular nucleus being researched, this minute energy differential (E) is often expressed for nmr purposes as a frequency in MHz (106 Hz), ranging from 20 to 900 Mz.
Learn more about The 1H-NMR spectrum
brainly.com/question/29389817
#SPJ4
Which of the following common bases is commonly used for manufacturing fertilizer?
A) NaOH
B) NaHCO3
C) KOH
D) NH3
E) all of the above
NH3 is commonly used for manufacturing fertilizer.
What do you mean by fertilizer?
A fertilizer is a material, either natural or artificial, that contains chemical components (such as nitrogen (N), phosphorus (P), and potassium (K)) that promotes the development and productivity of plants. The words "enrichment" and "plant nutrition" are a few synonyms.
Ammonia or its solutions are the primary straight fertilizer that contains nitrogen. Another extensively utilized substance is ammonium nitrate (NH4NO3). Another widely used nitrogen source is urea, which has the advantages of being solid and non-explosive in contrast to ammonia and ammonium nitrate, respectively. In order to replenish the soil's decreased supply of vital nutrients for plant growth, fertilizers are used.
To learn more about fertilizers use link below:
https://brainly.com/question/24544067
#SPJ4
A container contains 5.3x10^12 particles of H2O, How many moles is this
The number of moles that contains 5.3 × 10¹² particles of water is 8.8 × 10-¹² moles.
How to calculate number of moles?The number of moles in a substance can be calculated by dividing the number of atoms/molecules in the substance by Avogadro's number as follows:
no of moles = no of atoms ÷ 6.02 × 10²³
According to this question, a container contains 5.3 × 10¹² particles of water. The number of moles can be calculated as follows:
no of moles = 5.3 × 10¹² ÷ 6.02 × 10²³
no of moles = 8.8 × 10-¹² moles
Therefore, 8.8 × 10-¹² moles is present in the water molecule.
Learn more about number of moles at: https://brainly.com/question/14919968
#SPJ1
It takes 12 cups of sugar to make 38 gallons of sweet tea. If the recipe is for 1 gallon of sweat tea, how much sugar is needed to make triple the recipe?.
What is Phosphoric Acid?
Phosphoric acid is a colorless, odorless, non-flammable inorganic acid with the chemical formula H3PO4. It is commonly used as a food additive, industrial cleaner, and rust remover, as well as in the production of fertilizers, detergents, and other chemical products.
What is inorganic acid?
An inorganic acid is a type of acid that does not contain carbon atoms. Examples include sulfuric acid (H2SO4), hydrochloric acid (HCl), nitric acid (HNO3), phosphoric acid (H3PO4), and carbonic acid (H2CO3).
These acids have a wide range of applications, including use as industrial chemicals, laboratory reagents, and food additives. Inorganic acids are often highly corrosive and can cause harm to living tissue, so they must be handled with care.
To learn more about Phosphoric acid, visit: https://brainly.com/question/8988270
#SPJ4
how many molecules/atoms are contained in 55.0 g of h2so4?
3.37 × 10²³ molecules are contained in 55.0 g of H₂SO₄ (sulphuric acid).
The given mass of H₂SO₄ = 55.0 g.
Molar mass of H₂SO₄ = 2 × 1 + 32 + 4 × 16 = 98 g/mol
The ratio between a compound's specified mass and its molar mass is used to calculate the number of moles in the compound.
So, number of moles = Given mass/molar maa
or, number of moles = 55/98 = 0.56 moles
One mole of H₂SO₄ will contain the Avogadro's number of molecules.
So, one mole of H₂SO₄ has 6.023 × 10²³ molecules
Hence, 0.56 moles of H₂SO₄ contains = 0.56 × 6.023 × 10²³
= 3.37 × 10²³ molecules.
To know more about molar mass from the link
brainly.com/question/837939
#SPJ4
What is Henderson and Hasselbalch equation explain it for pH pKa?
pH = pKa - log ([Acid]/[Salt]), or the Henderson-Hasselbalch equation. The final log term changes from negative to positive when the argument is inverted, as in pH = pKa + logs ([Salt]/[Acid]).
How does the Henderson-Hasselbalch equation describe pH?
The Henderson-Hasselbalch equation, which reads pH = pKa + log([A]/[HA]), can be used to figure out a buffer's pH. Its equilibrium concentrations of conjugate acid-base pair utilized to make the buffer solution are denoted by [HA] and [A] in this equation.
Why is pH pKa important?
Discover more about our editing procedure. 30 January 2020 update. The pH serves as a gauge for the amount of hydrogen ions present inside an aqueous solution. Although pH and pKa (ammonium acetate constant) are linked, pKa is more precise since it allows you to forecast how a molecule will react to at a particular pH.
To know more positive about:
https://brainly.com/question/15668711
SPJ4
pH = pKa - log ([Acid]/[Salt]), or the Henderson-Hasselbalch equation. The final log term changes from negative to positive when the argument is inverted, as in pH = pKa + logs ([Salt]/[Acid]).
How does the Henderson-Hasselbalch equation describe pH?
The Henderson-Hasselbalch equation, which reads pH = pKa + log([A]/[HA]), can be used to figure out a buffer's pH. Its equilibrium concentrations of conjugate acid-base pair utilized to make the buffer solution are denoted by [HA] and [A] in this equation.
Why is pH pKa important?
Discover more about our editing procedure. 30 January 2020 update. The pH serves as a gauge for the amount of hydrogen ions present inside an aqueous solution. Although pH and pKa (ammonium acetate constant) are linked, pKa is more precise since it allows you to forecast how a molecule will react to at a particular pH.
To know more positive about:
brainly.com/question/15668711
#SPJ4
A solution of toluene (C₇H₈) in 301 g of cyclohexane (C₆H₁₂) has a boiling point of 90. 30 °C. What quantity in moles of toluene are in the solution? (For cyclohexane Kb = 2. 92 °C/m, normal boiling point, Tb = 80. 90 °C)
0.96 moles of toluene (C7H8) are present in 301 g of cyclohexane (C6H12), which has a boiling point of 90.30 °C.
What are the physical properties of toluene?Boiling point of cyclohexane = 90.30 °C
Mass of cyclohexane = 301 g
Kb of cyclohexane = 2.92 °C/m
Tb of cyclohexane = 80.90 °C
The mole fractions of benzene and toluene are X1 and X2, respectively. We are aware that X1 + X2 = 1 is a solution. Toluene's mole fraction will be 0.5 since X1 = 0.1. Consequently, 0.5 moles of benzene and 0.5 moles of toluene will be present in each mole of the solution.
∆ Tb is the variation in cyclohexane's boiling point.
90.30 °C - 80.90 °C = 9.40 °C
Molality times mass of cyclohexane equals toluene moles per kilogram (in kg)
= 3.22 x 301/1000 = 0.96mol
Therefore, Number of moles of toluene = 0.96 moles.
Learn more about toluene here:
https://brainly.com/question/29899857
#SPJ4
looking down the bonds for carbon atoms 2 and 3, do carbon atoms 1 and 4 have an anti or a gauche relationship?
Carbon atoms 1 and 4 have an anti conformation.
Butane can exist in four different "extreme" conformations: 1) Complete eclipse, where the methyl groups completely block each other; 2) Gauche, in which the methyl groups are spaced apart but close to one another; 3) Eclipsed, in which the methyl groups cover hydrogen atoms; and 4) Anti, in which the methyl groups are spaced apart but as far apart as possible.
The two methyl groups are as far apart from one another as they can be, with a dihedral angle of 180 degrees, in the most stable conformation. Anti describes this specific staggered structure. The alternative staggered conformation is referred to as gauche and has an Me-Me dihedral angle of 60 degrees.
Due to steric strain, which is the repulsive interaction brought on by the two bulky methyl groups being pressed too close together, the gauche conformation has a greater energy valley than the anti conformation. There is no doubt that the anti conformation has less steric strain.
To learn more about Eclipsed conformation
https://brainly.com/question/27853234
#SPJ4
what are the predominant forms of phosphate ions in a neutral ph phosphate buffer?
The predominant forms of phosphate ions present in a neutral pH phosphate buffer is orthophosphate as H₂PO₄⁻ or HPO₄⁻².
Phosphate plays a pivotal role in the energetics of metabolic processes, biological structures, as well as regulation and therefore one of the most crucial inorganic ions in biochemistry. Inorganic phosphate which is also often abbreviated Pi, and also known as orthophosphate, in the aqueous solution exists as H₂PO₄⁻ or HPO₄⁻², and is a very effective buffer at at neutral pH.
Although, the predominant forms of phosphorus which exist between pH 4 and 10 are the two intermediates, namely, dihydrogen phosphate (which is monobasic) and monohydrogen phosphate (which is dibasic).
To know more about phosphate ions here
https://brainly.com/question/28507935
#SPJ4
write down the subshell from which an electron would have to be removed to make Acation and the subshell to which an electron would have to be added to make anion. The first row has been completed for You_ atom subshell from which electron subshell to which electron removed t0 form + cation added to form anion
Here is an illustration of the subshells that would need to have an electron taken from them in order to form a + cation and the subshells that would need to have an electron added to them in order to form a -1 anion.
The charge of an electron, which is commonly thought to be negative, is equal to and the opposite of the charge of a proton, which is typically thought to be positive. Because there are more electrons than protons in an ion's total charge, the net charge is not zero. An anion is a negatively charged ion that has more electrons than protons compared to a positively charged ion called a cation. Because they have opposing electric charges, cations and anions are drawn to one another by electrostatic force, which makes it easy to create ionic compounds. Atomic ions are distinct from molecular ions, which are composed of two or more atoms and are also known as multi-atom ions.
To know more about anion lease refer:
https://brainly.com/question/20781422
#SPJ4
A martini is a mixed drink created by combining 2 part gin, 1 part vermouth, and 1 olive.
"2 parts gin, 1 part vermouth, and 1 olive" is the recipe or [...] for making a martini.
Question 5 options:
symbol
formula
name
A martini is a mixed drink created by combining 2 part gin, 1 part vermouth, and 1 olive. "2 parts gin, 1 part vermouth, and 1 olive" is the recipe or formula for making a martini. Therefore, option B is correct.
What is recipe ?A recipe is a text that contains instructions for cooking or baking food. It instructs the cook on what ingredients to use, how to use them, and any nutritional facts that may be relevant.
Recipe and receipt both derive from the Latin verb recipere, which means "to receive or take," with receipt taking a detour through Old North French and Middle English. However, receipts were once used for what we now call recipes. My grandmother used to make a delicious dense and yellow cake.
Thus, "2 parts gin, 1 part vermouth, and 1 olive" is the recipe or formula for making a martini, option B is correct.
To learn more about the recipe, follow the link;
https://brainly.com/question/1320828
#SPJ1
The half-life of k-42 is 12. 4 hours. If a 500-gram sample of k-42 is left to decay for 62 hours, how much of the original sample will remain?.
Answer:
15.625 g
Explanation:
What are the 7 steps to the scientific method and explain the purpose of each?
1. Ask a question: This is the first step of the scientific method, in which you must ask a question about a phenomenon or problem that needs to be solved.
2. Do background research: Before you can begin to answer your question, you must do some background research on the subject. This will help you develop a better understanding of the problem and possible solutions.
3. Construct a hypothesis: A hypothesis is an educated guess about the possible outcomes of the research. It is important to remember that the hypothesis is not a fact, but an educated guess.
4. Test your hypothesis: Once you have developed a hypothesis, you must test it to see if it is correct. This can be done through experiments or observations.
5. Analyze your data and draw conclusions: After you have completed your tests, you must analyze the data and draw conclusions from it. This will help you determine if your hypothesis was correct or not.
6. Report your results: Once you have completed your research and drawn conclusions, you must report your findings. This can be done through a written report or a presentation.
7. Formulate a theory: After you have reported your results, you can formulate a theory about the phenomenon or problem. This theory can be tested in the future to see if it is accurate.
What is phenomenon?
Phenomenon in chemistry is a term used to describe a unique and observable event or occurrence. It can refer to a physical or chemical process, the result of a reaction, or the behavior of a substance under certain conditions.
To learn more about phenomenon
Here: https://brainly.com/question/29135126
#SPJ4
Iron(iii) oxide is formed when iron combines with oxygen in the air. How many grams of fe2o3 are formed when 16. 7 g of fe reacts completely with oxygen?.
The amount, in grams, of [tex]Fe_2O_3[/tex] formed from 16.7 g of Fe and oxygen would be 23.856 grams.
Stoichiometric calculationIron (Fe) combines with oxygen (O2) to form Fe2O3 according to the following equation:
[tex]4Fe + 3O_2 --- > 2Fe_2O_3[/tex]
Mole equivalence of 16.7 g of Fe = 16.7/56 = 0.2982 mol
From the balanced equation of the reaction, the mole ratio of Fe and Fe2O3 is 2:1, thus, the equivalent mole of Fe2O3 produced from 0.2982 mol of Fe would be:
0.2982/2 = 0.1491 mol
Mass of 0.1491 mol Fe2O3 = 0.1491 x 160
= 23.856 grams
In other words, the amount of Fe2O3 formed is 23.856 grams.
More on stoichiometric problems can be found here: https://brainly.com/question/28297916
#SPJ1
at 23.8 °c, the vapor pressure of isopropyl alcohol (rubbing alcohol) is 40. torr. at 39.5 °c, the vapor pressure is 100. torr. what is the enthalpy of vaporization for isopropyl alcohol in kj/mol?
At 23.8 °C, the vapor pressure of isopropyl alcohol (rubbing alcohol) is 40. torr. at 39.5 °C,. The enthalpy of vaporization for isopropyl alcohol in kJ/mol is 76.15 kJ/mol.
The vapor pressure , P1 = 40 torr
The vapor pressure , P2= 100 torr
The temperature T1 = 23.8 °C
The temperature , T2 = 39.5 °C
The expression is given as :
ln P2 /P1 = - ΔH / R ( 1/ T2 - 1/ T1)
ln 100/40 = -ΔH / 8.314 ( 1/312.5 - 1/ 296.8)
ln2.5 = -ΔH/ 8.314 (-0.0001)
0.916 × 8.314 = ΔH 0.0001
ΔH = 76156.2 J/mol
ΔH = 76.15 kJ/mol
Thus, the heat of vaporization is 76.15 kJ/mol.
To learn more about vapor pressure here
https://brainly.com/question/12904410
#SPJ4
A food worker is putting chemicals into clean spray bottles what must the food worker include.
To prevent mixing up, the food worker must carefully mark the spray bottle with what is inside to assure that accident hapen.
Since chemicals are dangerous, it is best top store them in their own special location and to stay away from sanitizing chemicals when preparing food to prevent contamination.
Chemicals labels must be included on all substances that are poisonous, oxidizing, corrosive, reactive, carcinogenic, or flammable, as well as any liquids or gases that are under pressure, such as liquid nitrogen tanks and compressed air cylinders.
Chemicals should also never be kept close to food or surfaces that come into contact with it. To prevent cross-contamination, the chemical storage space for food workers needs to be isolated from the food storage area. Chemical spills into food are relatively simple to happen if they are stored close to locations where food is prepared.
Learn more about chemical storage here https://brainly.com/question/8038400
#SPJ4
the ka (hco3-) is the equilibrium constant for what reaction
Ka (HCO₃⁻) is the equilibrium constant for the reaction given as,
HCO₃⁻ + H₂O → H₃O⁺ + CO₃²⁻
The equilibrium constant of a chemical reaction is basically defined as the value of its reaction quotient at chemical equilibrium, a state approached by a dynamic chemical reaction after enough time has passed and at that point of time its composition has no measurable tendency towards further change.
Ka means acid dissociation constant that means it dissociates into solution and produces H₃O⁺.
So the Equation that represents this situation is given as,
HCO₃⁻ + H₂O → H₃O⁺ + CO₃²⁻
For any equilibrium equation aA + bB ⇌ cC + dD, the equilibrium constant, can be calculated using the formula K = [C]^c[D]^d / [A]^a[B]^b , where K is a constant.
Learn more about equilibrium constant from the link given below.
https://brainly.com/question/29118688
#SPJ4
how many carbon atoms are in 5 moles of ethane, c2h6?
Carbon atoms in 5 moles of ethane (C₂H₆) = 6 carbons.
Carbon is the six-atomic chemical element with the symbol C. As a nonmetallic, tetravalent member of group 14 on the periodic table, it has four electrons available to create covalent chemical bonds.
Two (2) moles of carbon atoms make up 1 mole of C₂H₆.
Hence, the carbon atoms are there in 3 moles of C₂H₆:
= 2 × 3 = 6
Six moles of hydrogen atoms make up 1 mole of C₂H₆
Carbon atoms are there in 3 moles of C₂H₆
= 3 × 6 = 18
Ethane makes up 6.023 x 10²³ molecules in 1 mole of C₂H₆
Molecular weight in 3 moles of C₂H₆
= 3 × 6.023 × 10²³
= 18.069 × 10²³
Learn more about carbon here: https://brainly.com/question/29749044
#SPJ4
in the 100ml graduated cylinder, which sediment will settl eout of suspension first and sink to the bottom and why?
The particle with the highest density will settle out first and sink to the bottom.
The settling of particles in a suspension depends on their density and size. In general, particles with a higher density will settle out of suspension faster and sink to the bottom of the container. This is because the force of gravity acting on the particles is proportional to their mass, and their mass is proportional to their density. Hence, particles with a higher density will experience a greater force of gravity and will settle out of suspension faster.
So, in conclusion, in a 100 ml graduated cylinder, the particle with the highest density will settle out of suspension first and sink to the bottom due to the force of gravity acting on the particles, which is proportional to their mass and density.
To learn more about suspension, visit:
https://brainly.com/question/21110685#
#SPJ11
calculate the molarity (m) of 1.625 moles of agno3 in 3.25 liters solution.
The molarity (m) of 1.625 moles of AgNO3 in 3.25 liters of solution is 0.5 molar (M).
What is molarity?
Molarity (m) is a unit of concentration that represents the amount of solute present in a solution per unit volume of the solution. It is defined as the ratio of the number of moles of solute present in the solution to the volume of the solution in liters.
To calculate the molarity of 1.625 moles of AgNO3 in 3.25 liters of solution:
m = moles of solute / liters of solution = 1.625 moles / 3.25 liters = 0.5 M
So, the molarity of the solution is 0.5 M, which means there are 0.5 moles of AgNO3 per liter of solution.
To learn more about molarity:
https://brainly.com/question/14469428
#SPJ4
how do we know when a chemical equation is balanced?
A chemical equation is considered balanced when the number of atoms of each element is equal on both sides of the equation.
How is a chemical equation balanced?
A chemical equation is considered balanced when the number of atoms of each element is equal on both sides of the equation. This means that the same number of atoms of each element must be present on both the reactant side and the product side of the equation.
To balance a chemical equation, you can adjust the coefficients (the numbers in front of the chemical formulas) to make sure that the number of atoms of each element is equal on both sides. You can use simple arithmetic to determine the correct coefficients. For example, if a reactant contains 2 atoms of hydrogen and a product contains 4 atoms of hydrogen, you would need to add a coefficient of 2 in front of the reactant to balance the equation.
Once you have balanced the equation, it should have the same number of atoms of each element on both sides and the same charge on both sides. You can check this by counting the number of atoms of each element and the total charge on each side of the equation.
It is important to note that the balancing of chemical equations is based on the principle of conservation of matter, which states that matter cannot be created or destroyed in a chemical reaction. Therefore, the total number of atoms of each element must be conserved in a balanced chemical equation.
To learn more about chemical equations:
https://brainly.com/question/26694427
#SPJ4
Which box to pick for this answer
In the aqueous solution, the electrolyte CuSO_4 dissociates into Cu^2+ and SO^2- ions as well as H+ and OH ions.
What are inert electrodes for electrolysis?A few examples of inert electrodes include graphite and platinum. Metals like copper, silver, and gold are examples of reactive electrodes. The electrolysis of diluted sulfuric acid using graphite electrodes as the cathode and anode is an illustration of electrolysis utilizing inert electrodes. As a result, aqueous CuSO4 is electrolyzed with inert electrodes to create Cu at the cathode and O2 at the anode.
An inert electrode is one that doesn't contribute chemically to the electrode reaction; it solely acts as an electron source or sink. As inert electrodes, precious metals, mercury, and carbon are frequently utilized.
To know more about aqueous solution, visit:
https://brainly.com/question/19587902
#SPJ1
what is the bond order of the n-o bonds in the nitrosyl fluoride molecule?
The bond order of the N-O bonds in nitrosyl fluoride (NOF) is 1.5.
Bond order refers to the number of chemical bonds present between two atoms in a molecule. It is calculated based on the number of electrons involved in bonding and can range from zero to a maximum of 3 for a covalent bond.
In nitrosyl fluoride (NOF), the nitrogen (N) atom and the oxygen (O) atom are joined by a single covalent bond, which involves the sharing of two electrons. However, the bond is not a simple single bond, but rather a resonance hybrid of two contributing structures, both of which have a bond order of 1.5. This results in a bond order of 1.5 for the N-O bond in nitrosyl fluoride.
The concept of bond order is important because it provides insight into the stability of a molecule and helps to predict the bond lengths and strengths of the bonds in the molecule.
Learn more about bond order here:
https://brainly.com/question/2705237
#SPJ4
consider the reaction when aqueous solutions of chromium(iii) acetate and ammonium carbonate are combined. the net ionic equation for this reaction is:
Cr(C₂H₃O₂)₃(aq) + 3 NH₄CO₃(aq) → Cr(CO₃)₃(s) + 3 NH₄C₂H₃O₂(aq)
The balanced chemical equation for this reaction is:
Cr(C₂H₃O₂)₃(aq) + 3 NH₄CO₃(aq) → Cr(CO₃)₃(s) + 3NH₄C₂H₃O₂(aq)
What is a balanced chemical reaction?A balanced chemical reaction is a chemical equation in which the number of atoms of each element is the same on both sides of the equation. This means that the equation satisfies the law of conservation of matter, which states that matter cannot be created or destroyed in a chemical reaction. Balancing a chemical equation involves adjusting the coefficients (the numbers in front of the chemical formulas) so that the number of atoms of each element is equal on both sides of the equation.
To know more about atoms, visit:
https://brainly.com/question/29695801
#SPJ4
The net ionic equation for this reaction is Cr3+ + CO3 2- → Cr(CO3)3 (s).
What is reaction?Reaction is the response of a system to certain stimuli. It is a process in which an organism or inanimate object responds to external stimuli by a physical or chemical change. It can be a physical or chemical process, in which some form of energy is transformed into another form of energy. Reactions can be as simple as a single chemical reaction or as complex as a series of biochemical reactions. In addition, reactions can be either spontaneous or catalyzed, meaning that they are either initiated by an external force or caused by the presence of a catalyst.
The reaction occurs when aqueous solutions of chromium(III) acetate and ammonium carbonate are combined. The reaction is a precipitation reaction, in which a solid precipitate is formed from the reaction of two aqueous solutions. The net ionic equation for this reaction is:
Cr3+ + CO3 2- → Cr(CO3)3 (s)
In this equation, chromium(III) cations (Cr3+) react with carbonate anions (CO3 2-) to form an insoluble chromium(III) carbonate precipitate (Cr(CO3)3 (s)).
To learn more about reaction
https://brainly.com/question/24795637
#SPJ4
How do acid and base react with each other reaction?
When an acid as well as a base react together in order produce salt as well as water as products, it is known as a neutralization reaction.
Acids and bases react with each other, they produce salt as well as water as products. This kind of reaction is known as a neutralization reaction. It is known as a neutralization reaction because in it, an acid gets neutralized by a base.
For example, when sulfuric acid reacts with base like sodium hydroxide, it results in the formation of sodium sulfate, salt, and water. The reaction is given as:
H₂SO₄ + NaOH → Na₂SO₄ + H₂O
To know more about neutralization reaction here
https://brainly.com/question/28970253
#SPJ4
When an aqueous solution of NaOH is added to an aqueous solution of potassium dichromate, K2Cr2O, the dichromate ion is converted to...
(A) CO42-
(B) CrO2
(C) Cr3+ (D) Cr2O. (E) Cr(OH)
When an aqueous solution of NaOH will be added to an aqueous solution of potassium dichromate, K₂Cr₂O, the dichromate ion is converted to Cro₄²⁻.
K₂Cr₂O₇ + 2NaOH → K₂Cr₂O₄ + Na₂CrO₄ + H₂O
Potassium dichromate,(K₂Cr₂O₇), is a common inorganic chemical reagent, which is most commonly used as an oxidizing agent in various laboratory as well as industrial applications. As with all hexavalent chromium compounds, it is acutely and chronically harmful for health. It is a crystalline ionic solid having a very bright, red-orange color. This salt is popular in laboratory because it is not a deliquescent, in contrast to the more industrially relevant salt of sodium dichromate.
To know more about potassium dichromate here
https://brainly.com/question/18851117
#SPJ4
an atom has 16 neutrons and a mass number of 30. what is the atomic number, z, of this atom?
An atom has the 16 neutrons and the mass number of 30. The atomic number, Z of this atom is 14 as the number of the proton is 14.
The number of the neutrons = 16 neutrons
The mass number of the atom = 30
The expression for the mass number is as follows :
The mass number = neutrons + protons
The number of the protons = Mass number - neutrons
The number of the protons = 30 - 16
The mass number of the protons = 14 protons
The atomic number of an atom = the number of the protons
The atomic number of an atom = 14
To learn more about atomic number here
https://brainly.com/question/16858932
#SPJ4
Which is a structural isomer of 3-ethyl-3-methylhexane? A. 0 2,2,3,3-tetramethylpentane B. 0 2,8-dimethylnonane C. 0 2,7-dimethyloctane D. 3,3-diethyloctane
The correct answer is B, 2,8-dimethylnonane. It is the structural isomer of 3-ethyl-3-methylhexane.
What are structural isomers?Structural isomers, also known as constitutional isomers, are molecules with the same molecular formula but different arrangements of atoms in the molecule. They have a different structural formula and therefore different physical and chemical properties. The physical and chemical properties of structural isomers can be significantly different due to differences in their molecular structure.
Physical properties, such as boiling point, melting point, and solubility, can vary due to differences in intermolecular forces, such as dipole-dipole interactions and hydrogen bonding.
Chemical properties, such as reactivity and reactivity towards specific reagents, can also be different due to differences in the arrangement of functional groups and the orientation of bonds in the molecule. For example, different structural isomers can have different boiling points, reactivity towards certain reagents, and melting points.
To know more about hydrogen bonding, visit:
https://brainly.com/question/15099999
#SPJ4
According to the question, 3,3-diethyloctane is a structural isomer of 3-ethyl-3-methylhexane.
What are structural isomers?
Structural isomers, also known as constitutional isomers, are molecules with the same molecular formula but different arrangements of atoms in the molecule. They have a different structural formula and therefore different physical and chemical properties. The physical and chemical properties of structural isomers can be significantly different due to differences in their molecular structure.
Structural isomers are compounds with the same molecular formula but different structural formulas. In this case, 3-ethyl-3-methylhexane has the molecular formula C8H18, while 3,3-diethyloctane has the same molecular formula of C8H18, but the atoms are arranged differently.
To know more about structural isomers
https://brainly.com/question/3947075
#SPJ4
how does the octet rule help to determine the number of bonds between two atoms
The tendency of an atom to favor eight electrons in its valence shell is known as the "octet rule." Less than eight electrons per atom increase the likelihood of interaction, which leads to more stable compounds. Atoms will respond in order to achieve the most stable state.
When there are eight electrons around the atom, the arrangement is stable. Own electrons and some shared electrons can combine to form this octet. As a result, an atom keeps creating connections until an octet of electrons is formed. Lewis refers to this as the "octet rule."
Due to the fact that all orbitals will be filled, a whole octet is exceedingly stable. Atoms with higher levels of stability have less energy, therefore reactions that boost atom stability will release energy in the form of heat or light, whereas reactions that lower stability must absorb energy, making the environment colder.
Learn more about octet rule here https://brainly.com/question/865531
#SPJ4