Ammonium sulfide and zinc chloride solutions are mixed. what is the balanced chemical reaction?
Answers
Combining zinc chloride and ammonium carbonate aqueous solutions. The chemical process is shown to be balanced as;
(NH₄)2CO₃ (aq ) + ZnCl₂ ( aq ) -------- > ZnCO₃ ( s ) + 2 NH₄Cl (aq )
What is an aqueous solutions?In other words, the ions and molecules that make up the solute (dissolved) are surrounded by the water molecules and incorporated into their web of connections.
The kind of chemical bonds holding something together determines whether or not it will dissolve in water. Examples of watery solutions include rain, seawater, acid, base, and salt solutions.
Solutions that contain water as a solvent are known as aqueous solutions. (For instance, sugar solution).
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Related Questions
These images show models of a sugar molecule made
during photosynthesis and an amino acid molecule.
Which feature of the amino acid molecule could be used to support the idea
that it contains carbon atoms from a sugar molecule?
A. It has a sulfur atom between two of its carbon atoms.
B. It has a chain of carbon atoms bonded to each other.
C. It has fewer oxygen atoms than the sugar molecule.
D. It has a nitrogen atom attached to one of its carbon atoms.
Answers
B. It has a chain of carbon atoms bonded to each other.
This is because sugars are carbohydrates, which are made up of carbon, hydrogen, and oxygen atoms. Amino acids, on the other hand, are made up of carbon, hydrogen, oxygen, and nitrogen atoms. However, during the process of photosynthesis, plants use carbon dioxide from the air to make sugars.
Explanation->>>€Therefore, the carbon atoms in the sugar molecule can be used to make the chain of carbon atoms in the amino acid molecule.
2. A 20-year-old woman goes to the Emergency Department due to symptoms of palpitations, dizziness, sweating, and paresthesia that have not resolved over the past several days. Her history suggests an anxiety disorder, and blood gases and electrolytes are ordered. Her doctor prescribes a benzodiazepine after a positron emission tomography (PET) scan shows increased perfusion in the anterior end of each temporal lobe. Which of the following blood gases would be expected at the time of admission of this patient?
A. pH 7.51; Pa co: 49 mm Hg: [HCO3] = 38 mEq/L; Anion Gap - 12 mEq/L
B. pH 7.44; Pa co2-25 mm Hg; [HCO3] = 16 mEq/L; Anion Gap = 12 mEq/L
C. pH 7.28: Pa coz 60 mm Hg: [HCO3] =26 mEq/L; Anion Gap = 12 mEq/L
D. pH 7.28: Pa co2 20 mm Hg: [HCO3] = 16 mEq/L: Anion Gap = 25 mEq/L
E. pH 7.51: Pa co2 20 mm Hg: [HCO3] = 24 mEq/L; Anion Gap = 12 mEq/L
Answers
The expected blood gas values for this patient at the time of admission of patient is option E. pH 7.51; PaCO₂ = 20 mm Hg; [HCO₃]⁻ = 24 mEq/L; Anion Gap = 12 mEq/L
A 20-year-old woman presents to the Emergency Department with persistent symptoms of palpitations, dizziness, sweating, and paresthesia. She has a history suggestive of an anxiety disorder.
To assess her condition, blood gases and electrolytes are ordered, and a positron emission tomography (PET) scan is performed. The PET scan reveals increased perfusion in the anterior portion of each temporal lobe. Based on these findings, the doctor prescribes a benzodiazepine medication.
The expected blood gas values at the time of admission can be determined by analyzing the given options:
A. pH 7.51; PaCO₂ = 49 mm Hg; [HCO₃]⁻ = 38 mEq/L; Anion Gap = 12 mEq/L
B. pH 7.44; PaCO₂ = 25 mm Hg; [HCO₃]⁻ = 16 mEq/L; Anion Gap = 12 mEq/L
C. pH 7.28; PaCO₂ = 60 mm Hg; [HCO₃]⁻ = 26 mEq/L; Anion Gap = 12 mEq/L
D. pH 7.28; PaCO₂ = 20 mm Hg; [HCO₃]⁻ = 16 mEq/L; Anion Gap = 25 mEq/L
E. pH 7.51; PaCO₂ = 20 mm Hg; [HCO₃]⁻ = 24 mEq/L; Anion Gap = 12 mEq/L
By evaluating the options, the most appropriate choice is:
E. pH 7.51; PaCO₂ = 20 mm Hg; [HCO₃]⁻ = 24 mEq/L; Anion Gap = 12 mEq/L
This option presents a higher pH (alkalosis) and a decreased PaCO₂ (respiratory alkalosis), which could be consistent with the patient's symptoms of hyperventilation due to anxiety. The [HCO₃]⁻ level within the normal range and a normal anion gap further support this interpretation.
In summary, the expected blood gas values for this patient at the time of admission are a higher pH, decreased PaCO₂, normal [HCO₃]⁻, and a normal anion gap, indicative of respiratory alkalosis likely caused by hyperventilation related to her anxiety disorder.
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who noticed that by arranging the elements in order of increasing atomic mass, their properties repeated every eighth element?
Answers
Dmitri Mendeleev observed that when the elements were arranged in order of increasing atomic mass, their properties repeated every eighth element.
Mendeleev proposed his periodic table based on this discovery.The periodic table is arranged in rows and columns. The periodic table is divided into periods (horizontal rows) and groups (vertical columns). The elements in the same group have the same number of valence electrons, which means they share similar properties.
The atomic number, element symbol, element name, atomic mass, and electron configuration of each element are all displayed in the periodic table.The periodic table is a representation of the chemical elements in order of their increasing atomic number. It also shows how the electrons of the atoms are arranged in their respective energy levels.
The periodic table is an essential tool for chemists and other scientists to understand the chemical and physical properties of the elements.
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the average distance from the nucleus of a 3s electron in a chlorine atom is less than that for a 3p electron. in light of this fact, which orbital is higher in energy? would you expect it to require more or less energy to remove a 3s electron from the chlorine atom, as compared with a 2p electron? complete the sentences to explain your answer
Answers
The average distance from the nucleus of a 3s electron in a chlorine atom is less than that for a 3p electron. This indicates that the 3p orbital is higher in energy than the 3s orbital. The 3s orbital is closer to the nucleus, which leads to stronger electrostatic attraction and lower energy.
Removing a 3s electron from a chlorine atom would require less energy compared to removing a 2p electron. This is because the 3s orbital is lower in energy than the 2p orbital. Electrons in lower energy orbitals experience stronger attraction to the nucleus, making them easier to remove.
Additionally, the 3s orbital has a higher principal quantum number (n=3) compared to the 2p orbital (n=2). As the principal quantum number increases, the energy level of the orbital increases. Thus, the 3s orbital is higher in energy than the 2p orbital.
In summary, the 3p orbital is higher in energy than the 3s orbital in a chlorine atom. Removing a 3s electron requires less energy compared to removing a 2p electron due to the lower energy level of the 3s orbital and the stronger attraction to the nucleus.
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3. Draw each structure and determine how many configurational isomers are possible each A. 4-chloro-3-hexen-2-ol B. 2,4-hexadiene C. 3-chloro-1,4-pentadiene 4. Determine for each of the following isomeric pairs whether they are constitutional, isomers or stereoisomers. OH OH OH and OH OH OH and OH and
Answers
The structures provided for the isomeric pairs. Isomers are pairs of compounds with the same molecular formula but different structures.
To determine the number of configurational isomers for each compound, first draw each structure:
4-chloro-3-hexen-2-ol:
The structure of 4-chloro-3-hexen-2-ol contains a double bond between carbons 3 and 4 and an OH group at carbon 2. Since the double bond can have two possible configurations (cis or trans), there are two configurational isomers for this compound.
2,4-hexadiene:
The structure of 2,4-hexadiene contains two double bonds, one between carbons 2 and 3, and another between carbons 4 and 5. Each double bond can have two possible configurations (cis or trans), so there are a total of 2 x 2 = 4 configurational isomers for this compound.
3-chloro-1,4-pentadiene:
The structure of 3-chloro-1,4-pentadiene has a double bond between carbons 1 and 2, another double bond between carbons 4 and 5, and a Cl atom at carbon 3. Since the two double bonds are not adjacent, there are no cis or trans configurations to consider. Therefore, there is only one configurational isomer for this compound.
It seems that the structures provided for the isomeric pairs.
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Please help How many moles of a gas sample are in 5.0 L container at 215 K and 342 kPa(The gas constant is 8.31 L kPa/mol K) Round your answer to one decimal place and enter the number only with no units.
Answers
Answer
1.0 mol
Explanation
Given:
Volume, V = 5.0 L
Temperature, T = 215 K
Pressure, P = 342 kPa
The gas constant, R = 8.31 L kPa/mol K
What to find:
The number of moles of the gas sample.
Step-step-solution:
The number of moles of the gas can be determine using the ideal gas equation formula:
\(PV=nRT\)Put the given values into the formula and calculate for n:
\(\begin{gathered} 342\times5.0=n\times8.31\times215 \\ 1710=1786.65n \\ \text{Divide both sides by 1786.65} \\ \frac{1710}{1786.65}=\frac{1786.65n}{1786.65} \\ n=0.9571\text{ mol} \\ To\text{ one decimal place,} \\ n=1.0\text{ mol} \end{gathered}\)The number of moles of the gas sample is 1.0 mol.
Consider the half reaction below.
Which statement best describes what is taking place?
Chlorine is losing electrons and being oxidized. Chlorine is losing electrons and being reduced. Chlorine is gaining electrons and being oxidized. Chlorine is gaining electrons and being reduced.
Answers
Answer:
balancing of charges of both sides
Answer:
A
Explanation:
A...............................
write a balanced equation for the decomposition reaction described, using the smallest possible integer coefficients. when carbonic acid decomposes, water and carbon dioxide are formed.
Answers
When carbonic acid decomposes, water and carbon dioxide are formed. The balanced chemical equation for the reaction can be represented as follows:Carbonic acid is a weak inorganic acid that forms when carbon dioxide is dissolved in water.
Carbonic acid is also present in fizzy drinks and soda water. When carbonic acid decomposes, water and carbon dioxide are formed.The balanced chemical equation for the decomposition reaction of carbonic acid can be represented as:H2CO3 → H2O + CO2The above reaction is an example of a decomposition reaction, which means that a single compound breaks down into two or more simpler substances.
Here, carbonic acid, which is a compound, breaks down into water and carbon dioxide gas.Balancing chemical equations is an important concept in chemistry that is used to describe chemical reactions. It involves the use of coefficients to balance the number of atoms of each element on both sides of the equation. The coefficients are the smallest possible integers that ensure that the law of conservation of mass is obeyed.
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To bake a cake I used 150 grams of flour, 70 grams of sugar, and 45 grams of milk. After going through a chemical change by baking the ingredients to make the cake, how many grams will the cake weigh? Will it be more, less, or equal to what we started with? Explain.
Answers
The cake should weigh 265 grams ordinarily. However, it could weigh less.
Chemical reactions and the law of conservation of massAccording to the law of conservation of mass, masses can neither be created nor destroyed during the course of chemical reactions. However, masses can be converted from one form to another.
Going by this law, the mass of the resulting cake from the illustration should be the cumulative mass of the ingredients of the cake.
However, during the process of baking, some mass might have been converted to gas and escaped into the atmosphere. Thus, the final cake may weigh less than the cumulative mass of the ingredients.
In the absence of conversion of mass to gas and no ingredient spillage during the entire process, the mass of the cake should be the cumulative mass of the ingredients.
Thus:
Mass of the cake = 150 + 70 + 45
= 265 grams
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Is this the correct lewis dot structure for PO₃¹⁻?
Answers
Answer:
No
Explanation:
In the formula XS04, the symbol X could represent the element*
O (1) AI
O (2) Ar
O (3) Mg
0 (4) Na
Answers
When ions are tightly surrounded by solvent molecules they are said to be _____.
Answers
When ions are tightly attached to solvent molecules they are called as solvated ions.
When separation occurs, the solute is divided into ions or molecules, and every ion or molecule is surrounded by a solvent. The bonding between the solute particles and solvent molecules is called solvation. A solvated ion or molecule is surrounded by solvent molecules. For example, when we add NaCl to water, the NaCl molecules split into Na⁺ and Cl⁻ ions. These ions of sodium and chlorine then get surrounded by water molecules. We can call the ion water mixture a solution and the surrounded ions of sodium and chlorine as solvated ions.
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If a perfume bottle is opened at one end of a room, the odor will quickly be detected on the other side of the room. Why?
A.The molecules are diffusing.
B.The molecules are being compressed.
C.Your sense of smell improves.
D.The molecules are condensing.
Answers
The molecules are dispersing, in answer. When the perfume bottle is opened, the scent's molecules randomly shift from a region of high concentration (near the opening) to a region of low concentration (further from the opening).
The building blocks of matter, molecules are made up of two or more atoms connected by chemical bonds. They are extremely small, usually measured in nanometers or angstroms, and are always moving because of thermal energy. Molecules' size, shape, and chemical characteristics all have an impact on how they behave because they affect how they interact with one another and their environment. In numerous chemical and biological processes, including chemical reactions, photosynthesis, and the transmission of nerve impulses, molecules are essential. They are also in charge of a lot of the material's physical characteristics, including colour, odour, and viscosity. Chemistry, biochemistry, and other scientific disciplines all depend heavily on the study of molecules.
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what made alchemy unscientific in its practices
Answers
The answer is that they were were not based on evidence and experiment and that made alchemy unscientific in its practices.
Alchemy is an old practice that might be thought of as a forerunner of chemistry.
The term alchemy is derived from the Arabic al-kimiyya, which is derived from Greek. Alchemy's fundamental notions focus around the transformation of one substance into another, often transforming a basic metal like lead or iron into a "noble" metal like silver or gold
The alchemist's main ambitions were to find the Stone of Knowledge, the medium of Eternal Youth and Health, and metal transmutation.
To conclude with we can say Alchemy is based on magic and occultism rather than true investigation and facts. Many of the items in it have been utilised as fundamentals for certain chemistry, although the vast majority of them are wrong and inaccurate.
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PLEASE HELP ME!!
1) When a metal forms a metal oxide, why does the mass increase?
2) When an acid reacts with a metal, why does the mass decrease?
Answers
Answer:
masses are constant in chemical reactions
Explanation:
I assume you are asking why you might get more mass out of a reaction between a metal and an acid with respect to the mass of the metal you put in.......
Metals tend to form salts in acids.......
When metals form metal oxides, the oxide layer causes the extra mass. When acids reacts with metals, they form their metallic salts.
What are metals?Metals are electropositive elements. In periodic table, the s block elements and d- block elements are metals. They are electron rich and easily loss one or more electrons from their valance shell.
Metals reacts with nonmetals such as oxygen, nitrogen, carbon etc. by donating electrons to them. Electronegative elements such as oxygen easily reacts with metals forming metal oxides.
Acids reacts with metals with donating the hydrogen ion or proton into the metal. That's why anionic acids are less mass than the acids with the protonated form.
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Question 8 (2 points)
(02.02 LC)
A mixture contains nuts, drink mix, orange slices, and berries. Which part of this mixture is soluble in water? (2 points)
а
Berries
Ob
Drink mix
Ос
Nuts
Od
Orange slices
Question 9 (2 points)
(02.02 LC)
which of the following dissolve in water? (2 points)
Answers
Answer:
B. Drink Mix
Explanation:
Assuming the drink mix is something like Kool-aid, it is soluble in water. The rest are solids that cannot be dissolved in water.
23. The temperature of the Sun's corona (i.e., the Sun's outer atmosphere) is most nearly equal to:
a) 1,000,000 ºK
b) 4000 ºK
c) 15,000,000 ºK
d) 100 ºK
e) 6000 (or 5800) ºK
Answers
The correct option is (a) 1,000,000ºK.
The temperature of the Sun's corona is most nearly equal to option (a) 1,000,000ºK. The corona is the outermost layer of the Sun's atmosphere and is composed of highly ionized gas. The temperature of the corona is much higher than the temperature of the Sun's visible surface (the photosphere), which has a temperature of about 5,500 ºC (or 5,800 ºK). The reason for the high temperature of the corona is still not fully understood, but it is thought to be related to the Sun's magnetic field and the transfer of energy from the Sun's interior to its outer atmosphere.
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Which of the following is the principal positively charged ion inside body cells?
a. Sodium.
b. Potassium.
c. Calcium.
d. Chloride.
Answers
Potassium is the principal positively charged ion (cation) inside body cells. Option B is correct.
Potassium plays a crucial role in maintaining the resting membrane potential and proper functioning of cells, particularly in nerve and muscle cells. The concentration of potassium inside the cell is higher compared to the extracellular fluid. This concentration gradient is maintained through the action of ion pumps, such as the sodium-potassium pump, which actively transports potassium into the cell and sodium out of the cell.
Sodium is the principal positively charged ion outside the cell, while calcium is involved in various cellular processes but is not the principal cation inside cells. Chloride is a negatively charged ion (anion) and is predominantly found outside the cell. Therefore, the principal positively charged ion inside body cells is potassium. Option B is correct.
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What is the mass of 3.50 mol of Zn atoms? A. 18.7g. B. 229g. C. 0.0535g
Answers
Answer:
B; 229g of Zn
Explanation:
To convert mol of Zn, we must find the atomic mass of Zn. This is 65.38.
Multiply 3.5 mol of zn by 65.38.
3.50 mol of Zn*65.38g = 228.83g of Zn
Therefore, the mass = 229g of Zn
isobutane c4h10 is one of the components of natural gas T/F
Answers
The statement "isobutane c4h10 is one of the components of natural gas" is True.
Natural gas is a fossil fuel primarily composed of hydrocarbon gases, and its exact composition can vary depending on the source.
Isobutane is a branched-chain alkane, specifically a butane isomer, that can be found in natural gas deposits.
Natural gas typically consists of methane (CH4) as the main component, which can make up a significant portion, sometimes more than 90% of the composition.
However, natural gas can also contain other hydrocarbons such as ethane (C2H6), propane (C3H8), and butanes, including isobutane (C4H10). These components are often present in smaller amounts compared to methane.
Isobutane is commonly used as a fuel and a refrigerant.
It has a higher energy density than methane, making it suitable for various applications, including as a fuel additive or a component in liquefied petroleum gas (LPG).
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The figure represents three identical containers connected by valves that can be closed or opened to allow gas movement between the containers. At the beginning of a student's investigation, the valves are closed and the two outer containers are completely empty. The middle container holds particles of an ideal gas at a pressure of 9 atm. After the valves are opened and enough time has passed for net movement of particles between the containers to stop, the pressure of gas in the middle container will be closest to which of the following?
1.5 atm
2 atm
3 atm
9 atm
Answers
After valves are opened and enough time has passed for net movement of particles between containers to stop, pressure of gas in middle container will be closest to 3 atmospheres as pressure will be halved after opening valves.
What is pressure ?Pressure is defined as the force applied on an object perpendicular to it's surface per unit area over which it is distributed.Gauge pressure is a pressure which is related with the ambient pressure.
There are various units by which pressure is expressed most of which are derived units which are obtained from unit of force divided by unit of area . The SI unit of pressure is pascal .
Pressure will be halved after opening valves as it will be bifurcated ,thus, 9/2=4.5 which is closest 3 atmospheres.
Thus,the pressure of gas in the middle container will be closest to 3 atmospheres.
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the square-planar complex has chloride ligands in a cis configuration. no trans isomer is known. choose the correct explanation for why the trans compound is not possible.
Answers
The trans compound is not possible in the square-planar complex with cis chloride ligands due to steric hindrance.
Why is the trans compound not possible in the square-planar complex with cis chloride ligands?
In a square-planar complex, the ligands are arranged around the central metal atom in a flat, square shape. The term "cis" refers to the arrangement of ligands on the same side of the coordination plane, while "trans" refers to the arrangement of ligands on opposite sides of the coordination plane.
The reason why the trans compound is not possible in this case is due to steric hindrance. Steric hindrance refers to the repulsion or clash between atoms or groups that are in close proximity to each other. In the square-planar complex with cis chloride ligands, if a trans compound were to form, the chloride ligands would be positioned directly opposite each other, leading to significant steric repulsion between them. This repulsion makes the trans configuration highly unfavorable and unstable, preventing its formation.
Therefore, the absence of a trans isomer in this square-planar complex with cis chloride ligands is a result of the strong steric hindrance that prevents the ligands from adopting a trans configuration.
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Identify this reaction
In pic
Answers
Answer:
Double displacement
Explanation:
Atmospheric pressure on the peak of Mt, Everest can be as low as 150.0 mmHg, which is why climbers need to bring oxygen tanks for the last part of the climb. If the climbers carry 10.00 L tanks with an internal gas pressure of 3.400 x 10⁴ mmHg, what will be the volume of the gas be when it is released from the tanks?
Answers
Answer:
The volume of the gas when it is released from the tanks will be equal to 10.00 L x (150.0 mmHg / 3.400 x 10⁴ mmHg) = 0.004412 L.
Explanation:
If there are no chemical controls which can be implemented at your worksite, what can you do to protect yourself?.
Answers
If there are no chemical controls which can be implemented at your worksite than one should wear recommended PPE for protection .
PPE means personal protective equipment .PPE at the worksite is selected to reduce the risk to health and safety .PPE includes aprons , overalls , gloves , footwear face shields , chemical resistant glasses , and respirators .The PPE and administrative control measures depends upon the behavior and supervision of human .The efficacy of PPE depends entirely on the workers following the procedures and instructions appropriately .
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What is the missing word? When biofuels are burned they release the same amount of carbon dioxide as was removed from the atmosphere
by the plant. Biofuels are therefore described as being carbon___
Answers
Answer:
Many scientists view biofuels as inherently carbon-neutral: they assume the carbon dioxide (CO2) plants absorb from the air as they grow completely offsets, or “neutralizes,” the CO2 emitted when fuels made from plants burn.
Explanation:
put in your own words, happy to help
To solve such this we must know the concept of combustion reaction. Therefore, the missing word is neutral that is Biofuels are therefore described as being carbon neutral.
What is chemical reaction?Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.
When biofuels are burned they release the same amount of carbon dioxide as was removed from the atmosphere by the plant. Biofuels are therefore described as being carbon neutral. the products of combustion reaction are carbon dioxide and water.
Therefore, the missing word is neutral.
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what is the name of the compound Cu(IO3)
Answers
Answer:
Copper Iodate
Cu(IO3) is Copper Iodate
1. State the general period and group trends among
main-group elements with respect to each of the
following properties:
a. atomic radii
b. first ionization energy
c. electron affinity
d. ionic radii
e. electronegativity
Answers
The general period and group trends among the main-group elements with respect to each of the following properties are as follows:
atomic radii - increase down the group; decrease across a periodfirst ionization energy - decrease down the group; increase across a periodelectron affinity - decrease down the group; increase across a periodionic radii - increase down the group; decrease across a periodelectronegativity - decrease down the group; increase across a periodWhat are periodic trends?Periodic trends are the trends followed by the properties of the elements going down a group or across a period in the periodic table.
The properties of elements that show periodic trends include:
a. atomic radii - the size of an atom of an element
b. first ionization energy - the energy required to remove a valence electron
c. electron affinity - the energy required to add an electron to a neutral atom
d. ionic radii - the size of the ion of an element
e. electronegativity - the ability to attract electrons
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Does anyone know any top brainly users that are good at chemistry?
Answers
Answer:
yes
Explanation:
Answer:
These people were ranked best at chemistry
Explanation:
The reaction of benzaldehyde with acetone and sodium hydroxide produces ____Choose :- stilbene- dibenzylideneacetone- benzocaine- anthracene- triphenyl methanolThis is an axample of ____ reaction.Choose :- a diels alder- a wittig- an aldol condensation
Answers
The condensation reaction of benzaldehyde with acetone and sodium hydroxide produces dibenzylideneacetone. This is an example of an aldol condensation.
Two molecules of benzaldehyde (aldehyde) and one molecule of acetone are condensed in this process (ketone). The carbonyl carbon of benzaldehyde is added to the nucleophile acetone. The formation of the nucleophile, an enolate ion, is the initial step in the process.
In organic chemistry, an aldol condensation is a condensation reaction in which an enol or enolate ion combines with a carbonyl chemical to produce a - hydroxy aldehyde or -hydroxy ketone, which is then dehydrated to produce a conjugated enone.
A condensation process when two molecules of the same type are condensed. This aldol condensation is a self-condensation reaction since the final product is formed when two acetone molecules join.
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