When water is added to a compound in a chemical equation, a new compound can be formed via hydrolysis.
What is hydrolysis?It refers to any chemical process when a water molecule breaks one or more chemical bonds. When water is the nucleophile, the phrase is used generically to refer to substitution, elimination, and solvation processes.
The cleavage of biomolecules known as biological hydrolysis occurs when a water molecule is consumed in order to cause the division of a bigger molecule into its component parts. Scarification is the process of hydrolyzing a carbohydrate into its individual sugar molecules, as occurs when sucrose is broken down into glucose and fructose.
A condensation reaction, in which two molecules combine to form a bigger one and expel a water molecule, can be reversed by a hydrolysis reaction. Thus, condensation builds up by removing water, but hydrolysis breaks down by adding water.
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A european automobile has a gas mileage of 17 km/l. what is the gas mileage in miles/gallon?
The gas mileage is 39.986 miles/gallon.
A gallon is a unit of volume in both the US customary and imperial systems of measurement. The US gallon is defined as 231 cubic inches (3.785 liters).
1 km = 0.621371 mi;
1 L = 0.264172 gal
a gas mileage = 17 km/L
d(automobile) = 17 km x 0.621371 km/mi
d(automobile) = 10.563 mi; the distance
V(automobile) = 1 L x 0.264172 L/gal
V(automobile) = 0.264172 gal; the volume of an automobile
a gas mileage = d(automobile) ÷ V(automobile)
a gas mileage = 10.563 mi ÷ 0.264172 gal
a gas mileage = 39.986 mi/gal
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Sodium benzoate is a widely used food preservative. what type of cells can utilize sodium benzoate as a carbon and energy source?
Sodium benzoate is a widely used food preservative. The type of cell that can utilize sodium benzoate as a carbon and energy source is pseudomonas cell.
What are pseudomonas cells?Psuedomonas cells are simple cell. They are gram-negative or gram-positive bacteria. These cells infect humans, animals, and plants.
They grew on fruits and vegetables. They also infect or contaminate food. So they are very harmful to all living organisms.
Thus, a common food preservative is sodium benzoate. Pseudomonas cells are the only kind of cell that can use sodium benzoate as both a carbon and an energy source.
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In chemical communication between cells, a ________ cell secretes a chemical messenger that binds to ________ on the ________ cell.
In chemical communication between cells, a secretory cell secretes a chemical messenger that binds to receptors on the target cell.
Cells are the basic building blocks of all living things. The human body is made up of trillions of cells. They give structure to the body, absorb nutrients from food, convert those nutrients into energy, and perform specific functions. In multicellular organisms, such as higher plants and animals, specialized cell groups are organized into tissues and organs.
Cells can be used as the basis for describing organisms as unicellular or multicellular. Unicellular organisms are organisms that have only one cell, i.e. single-celled organisms. Prokaryotes and protists are examples. Multicellular organisms are organisms with more than one cell. Examples are plants and animals.
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check the box next to each image that represents a substance that is a mixture
Ramelteon is a hypnotic agent used in the treatment of insomnia: what is the molecular formula of this compound? enter your answer in form of cxhynzow
Ramelteon is a hypnotic agent used in the treatment of insomnia. The molecular formula of this compound is C16H21NO2.
The molecular formula is the number of elements that are present in a compound. The molecular formula is calculated in terms of the empirical formula since the empirical formula is just the same or a multiple of the molecular formula.
The formula is :
n=M/mass of the empirical formula
Where,
M is the molar mass and n is an integer.
For example, the molecular formula of Caffeine C8H10N4O2 and its empirical formula is C4H5N2O.
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What do you know about the sun from experience?
Answer:
Sun
Explanation:
he sun is a big ball of burning plasma it cuases light the sun is the seco d hottest object in the universe the sun another fact is we learned the sun isn't even a solid it's bassiclly a ball of energy or a constant flaming ball of plasma hydrogen and heluim if the sun went out we would live in darkness forever not to mention we would frezze to death
A tetrahedral carbon is ____________ hybridized while a linear carbon is ____________ hybridized.
A tetrahedral carbon is sp3 hybridized while a linear carbon is sp hybridized.
Carbon is a chemical element with the symbol C and atomic number 6. It is a non-metal and is tetravalent. That atom donates four electrons to form a covalent chemical bond. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025% of the Earth's crust.
Carbon is an essential element for all life forms on earth. Carbon uptake and release are part of all plant and animal life, whether these life forms take up carbon to help make food or release carbon as part of respiration. Carbon is constantly moving from place to place. Carbon is also found in fossil fuels such as petroleum (crude oil), coal, and natural gas. Carbon is also found in dead, decaying animals and animal waste soils. Carbon is stored in the biosphere of plants and trees.
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Explain hydrogen bonding. how many hydrogen bonds can a single water molecule form
Hydrogen bonding is a unique type of dipole-dipole enchantment among molecules, now not a covalent bond to a hydrogen atom. It results from the attractive pressure between a hydrogen atom covalently bonded to a very electronegative atom consisting of a N, O, or F atom and some other very electronegative atom.
A single water molecule can form 4 Hydrogen Bonds.
A hydrogen atom this is linked to a exceptionally electronegative atom and some other relatively electronegative atom that is nearby engage with each other to form hydrogen bonds, which are an unique kind of attractive intermolecular interactions. This system is known as hydrogen bonding. Hydrogen, as an example, is covalently related to the more electronegative oxygen atom in water molecules (H2O).
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If you have purchased used machinery and it does not come with maintenance instructions, you should __________.
If you have purchased used machinery and it does not come with maintenance instructions, you should contact the manufacturer or check their website.
New machinery always come with maintenance instructions.
With an used machinery that is not always a case.
Machinery manufacturer is the best place to get help for some issues.
The manufacturer can provide necessary informations about maintenance instructions and other important informations about their products.
Another place to find necessary informations is website of the manufacturer of the used machinery. Website usually have many others usefull informations about the product. Many manufacturer optimize their information pages.
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Enter the molecular equation representing aqueous acetic acid neutralized by aqueous barium hydroxide. express your answer as a balanced molecular equation. identify all of the phases in your answer.
The molecular equation representing aqueous acetic acid neutralized by aqueous barium hydroxide:
2CH₃COOH(aq) + Ba(OH)₂(aq) → (CH₃COO)₂Ba(aq) + 2H₂O(l).
CH₃COOH is acetic acid
Ba(OH)₂ is barium hydroxide
(CH₃COO)₂Ba is barium acetate
H₂O is water
Acetic acid is an acid and barium hydroxide is a base. They form salt and water and neutralization reaction takes place.
Neutralization is is reaction in which an acid (in this example acetic acid CH₃COOH) and a base (in this example barium hydroxide) react quantitatively with each other.
Reactants and products are present in undissociated form in molecular equations.
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Determine the empirical formula of a compound containing 48.38 grams of carbon, 6.74 grams of hydrogen, and 53.5 grams of oxygen.
in an experiment, the molar mass of the compound was determined to be 180.15 g/mol. what is the molecular formula of the compound?
do not send links as an answer
Answer:
First, I will convert from grams to moles. This will give me approximately 4.032 moles of carbon, 6.740 moles of hydrogen, and 3.344 moles of oxygen. Then, I will calculate the mole ratio, using whole numbers. I must also identify the least amount of moles in an element for this step, which is oxygen at 3.344 moles.
Oxygen = 3.344/3.344 = 1
Carbon = 4.032/3.344 = 1
Hydrogen = 6.740/3.344 = 2
The empirical formula will be COH2.
Now that we have the molar mass of the molecular formula, we can calculate for the molecular formula. First, we will begin by discovering the molar mass of the empirical formula, which will be C molar mass x 1 + O molar mass x 1 + H molar mass x 2. That will be equal to 60.949. After that, we can divide the molecular mass by the empirical formula molar mass, giving us approximately 3. Now we will multiply the empirical formula by 3, giving us our molecular formula, which will be equal to C3O3H6.
Select the correct mass for each of the samples described below.
8.32 × 10^20 formula units CaBr2
Answer:
Explanation:
To determine the mass of each compound, we need to convert them into units of moles first. We use avogadros number to do this and use the molar mass of the compounds to convert to mass.
3.01 × 1023 molecules H2O ( 1 mole / 6.022x10^23 kg) (18.02 g / 1 mole) = 9.01 g
8.32 × 1020 formula units CaBr2 ( 1 mole / 6.022x10^23 kg) (199.89 g / 1 mole) = 0.28 g
1.93 × 1026 molecules XeF6 ( 1 mole / 6.022x10^23 kg) (245.28 g / 1 mole) = 78610.16 g
In the absence of stability information water containing formulations (prepared from ingredients in solid form) should be assigned by a beyond-use date that is:______.
In the absence of stability information water containing formulations (prepared from ingredients in solid form) should be assigned by a beyond-use date that is: no later than 14 days when stored at cold temperature.
When to use beyond-use dates when preparing suspension?
When using manufactured solid dosage forms to prepare a solution or aqueous suspension, the compound is additionally to consider factors such as hydrolysis and the freeze-thaw property of the final preparation before assigning a beyond-use date.
What is solution and suspension?
While suspensions are heterogeneous mixtures, solutions are homogeneous mixtures. The particles of a suspension may be seen with the open eye, whereas the particles of an answer are at the ion or molecular level and cannot be seen with it.
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What parts of polypeptide participate in bonds that hold together secondary structure? tertiary structure?
The parts of polypeptide participate in bonds that hold together secondary structure and tertiary Secondary structure shape is supplied via way of means of hydrogen bonds among atoms withinside the polypeptide spine of proteins. Interactions among the aspect chain atoms of the amino acid subunits shape the confirmation.
The Secondary structure shape includes nearby packing of the polypeptide chain into α-helices and β-sheets via way of means of hydrogen bonding among the peptide bond and the significant carbon spine. Tertiary (3D) shape is the form that outcomes from secondary structural folding decided via way of means of interactions among amino acid aspect chains.
Secondary structure outcomes from hydrogen bonds that shape among atoms withinside the polypeptide spine. A hydrogen bond is shaped among a partially bad oxygen atom and a partially effective nitrogen atom.
The tertiary structure is stabilized via way of means of aspect chain purposeful corporations inclusive of numerous interactions, in particular hydrogen bonds, salt bridges, covalent disulfide bonds, and hydrophobic interactions.
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5. Kinetic and potential energy both relate to:
a. Heat
b. Light
c. Motion
Answer:
C. Motion
Explanation:
Potential energy is the energy stored within an object.
Kinetic energy is the energy an object posesses due to its motion.
Ionic compounds are different from covalent compounds because they do not share electrons is it true or false
Ionic compounds are formed from ionic bonds which occur when there is electron transfer, while covalent compounds share electrons. Hence, the answer is true.
What are covalent compounds?Covalent compounds are compounds formed by covalent bonds. Atoms form compounds to achieve a stable electronic configuration. Covalent compounds do this by sharing their electrons. Covalent bonds are weaker than ionic compounds and mostly form gases.
What are ionic compounds?Ionic compounds achieve the stable electronic configuration of noble gases by gaining or giving away their electrons. When this happens, the atoms get attracted to each other by electrostatic forces. Atoms that give away their electrons become positively charged cations and atoms that receive electrons become negatively charged anions.
Therefore, the major difference between ionic compounds and covalent compounds is that covalent compounds share electrons and ionic compounds transfer electrons.
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What multiplicities are observed for the signals in the off-resonance decoupled 13c nmr spectrum of (2e)-3-chloroacrylaldehyde?
A singlet, a triplet, and a quartet multiplicities are observed for the signals in the off-resonance decoupled 13c NMR spectrum of (2e)-3-chloroacrylaldehyde
A spectrum is defined as the characteristic wavelengths of electromagnetic radiation (or parts thereof) emitted or absorbed by an object or substance, atoms or molecules. Multiple: Spectrum. A spectral line is an otherwise smooth and continuous spectral dark or bright line resulting from the emission or absorption of light in a narrow frequency range compared to adjacent frequencies.
These applications include Voice of America broadcasting, weather services, radar and voice communication systems for controlling commercial and civil air and sea traffic, weather satellite systems, flood warning and water control systems, and time signals.
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If the acid A has a pKa of 5 compared acid B with Pka of 9,how much stronger is acid A over B
Acid A is 10^4 = 10000 times stronger than B. This istrue if acid A has a pKa of 5 compared acid B with Pka of 9.
Acid strength is quantified by the acid dissociation constant (Ka). The acid is more potent the higher the value. A higher pka indicates lower acidity. Therefore, a weaker acid results from a greater pKa and a smaller Ka. A weaker acid is one with a higher pKa.
Since pKa = -log10(Ka), an acid is 10 times stronger for each pKa value of 1 below another. Acid A is therefore 10^4 = 10000 times stronger than acid B.
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Aspartate has three ionizable groups with pka values of 1.88, 9.60, and 3.65. what is the average net charge of aspartate at ph 3.65?
Aspartate has three ionizable groups with pka values of 1.88, 9.60, and 3.65. The average net charge of aspartate at ph 3.65 is - 0.5.
What Is Aspartate Amino Acid?Aspartate, like glutamic acid and glutamate, is the anion of aspartic acid. Aspartic acid is a -amino acid with a net negative charge. It is the most well-known form of amino acid that occurs in physiological conditions of the body.
Relation between Asparagine and aspartic acid. Asparagine's amide group is easily hydrolyzed to amino and carboxyl groups to form aspartic acid. This transformation is linked to the molecular basis of ageing. It is found on the surface as well as inside proteins due to the ability of the amide group of molecules to form hydrogen bonds.Asparagine is a derivative of aspartic acid, as we can see. In the carbon distal to the carbon, asparagine has an amide functional group. Aspartic acid has a carboxyl group in its acidic form.Asparagine's side chain has no electric charge, making it polar.The fundamental and primary distinction is that aspartic acid has a C4 carbon, whereas Asparagine has an amide group.Because asparagine residues can be changed to form complex carbohydrate chains, they are important. It can also form a cycle within a peptide or protein to produce an amide, which then opens to produce aspartic acid.Asparagine's main function as a -amino acid is that it can be used in the biosynthesis of proteins, whereas Aspartic Acid, due to its overall negative charge, plays an important role in the synthesis of other amino acids.Aspartic acid is also involved in the synthesis of citric acid and the urea cycle.Learn more about Aspartic acid here:-
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The specific heat capacity of an object depends only on the substance from which the object is made. true false
True, the specific heat capacity of an object depends only on the substance from which the object is made.
Specific heat capacity is defined as the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.
The SI unit of specific heat capacity is joule per kelvin per kilogram.
The specific heat capacity at constant volume is written as,
[tex]C_{V} = (du/dt)_{V}[/tex]
The specific heat capacity at constant pressure is written as,
[tex]C_{P} = (dh/dT)_{P}[/tex]
here, u is the internal energy of system in kJ/kmol and h is the enthalpy of system in kJ/kmol.
For an Ideal gas the relation between heat capacity at constant volume and at constant pressure can be written as ,
[tex]C_{P} - C_{V} = R[/tex]
Specific heat capacity is an intensive property i.e., independent of quantity. No matter how much substance we have, its ability to absorb heat energy at a particular temperature is the same.
So, we can say that the specific heat capacity of an object depends only on the substance from which the object is made and not on its quantity.
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Convert 1.9 kJ into the following units:
a. calories [answer: 450 cal]
b. Joules [answer: 1,900 J]
please show me the work, thank youu
Conevrting 1.9 kilojoule(kJ) into:
a) 1.9 kJ = 450 cal
b) 1.9 kJ = 1900 J
Similar to how kilometers measure distance, a kilojoule is a unit used to measure energy. Some nations continue to utilize the Calories (Cal) system, which was once used to quantify food energy. These are the conversions: 1 kJ = 0.2 Cal.
A calorie is a unit of energy measurement. Typically, the energy content of meals and beverages is determined in terms of calories. You must consume fewer calories each day than your body uses up in order to lose weight. Calories are necessary for human survival. Without energy, the body's cells would die, the heart and lungs would stop pumping, and the organs wouldn't be able to carry out essential life tasks. Through their consumption of food and liquids, people can absorb this energy.
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How many residues separate amino acids that are stabilized by hydrogen bonds in α helices?.
The number of residues separated amino acids that are stabilized by hydrogen bond in α helices is 3.6 amino acids residue.
When the two or more amino acid combine to form a peptide and the water is removed then the remain of each amino acid is called amino - acids residue.
The amino group of one amino acid interacts with carboxyl group of other amino acid to form peptide bond.
The α helix is stabilized by hydrogen bonds between the carbonyl oxygen and amino group of every third residue in the helical turn and with each helical turn consists 3.6 amino group.
Thus, alpha - helices have 3.6 amino acids residue per turn. This means that helix 36 amino acids long form 10 turns.
Therefore, number of residues separated amino acids that are stabilized by hydrogen bond in α helices is 3.6 amino acids residue.
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Nitrogen gas is the major component of air. a sample of nitrogen gas in a glass bulb weighs 243 mg. what is this mass in si base units of mass (kilograms)?
Nitrogen gas is the major component of air. a sample of nitrogen gas in a glass bulb weighs 243 mg. 2.43 × 10-4 kg is this mass in si base units of mass (kilograms).
Nitrogen, or N, using its scientific abbreviation, is a colorless, odorless element. Nitrogen is in the ground under our feet, in the water we drink, and in the air, we breathe. In fact, nitrogen is the most abundant element in the Earth's atmosphere, with approximately 78% of the atmosphere being composed of nitrogen.
Nitrogen is commonly used during sample preparation for chemical analysis. Used to concentrate and reduce the volume of liquid samples. Nitrogen is also important for the chemical industry. It is used in the production of fertilizers, nitric acid, nylon, dyes, and explosives*. Exposure to very high concentrations of pure nitrogen can cause dizziness, drowsiness, displacing oxygen from the air, unconsciousness, and death.
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If+a+mixture+of+quartz+and+bauxite+contains+78%+quartz,+this+means+that+_______.+(select+all+that+apply.)
If a mixture of quartz and bauxite contains 78% of quartz this means
There are 78gm of quartz in 100 gm of mixture/
There are 78gm of quartz for every 22 gm of bauxite.
There are 117gm of quartz for every 150gm of mixture.
If there is 78% of quartz in mixture of quartz and bauxite then
78% of quartz in 100% of mixture
If we suppose we have 100gm of mixture
Then ,
78% of 100 gm = 78gm
i.e. we have 78gm of quartz in mixture
100gm = quartz+ bauxite
100gm +78gm + bauxite
100- 78 = bauxite
Therefore bauxite = 22gm
Thus in 100 gm of mixture there is 78 gm of quartz and 22gm of bauxite.
If we suppose we have 150gm of mixture
Then ,
78% of 150 gm = 117gm
i.e. we have 117gm of quartz in mixture
150gm = quartz+ bauxite
150gm = 117gm + bauxite
150- 117 = bauxite
Therefore bauxite = 33gm
Thus in 150 gm of mixture there is 117gm of quartz and 33gm of bauxite.
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Which of the following chemicals does not occur naturally?
Answer:
Explanation:
O2
The revival of jansenism, which centered on miracles that allegedly happened at the grave of a jansenist priest, is evidence of what development within french catholicism?
The evidence of the revival of Jansenism is the desire of ordinary people to connect themselves to what they saw as the direct work of God.
What is Jansenism?Jansenism is a theological movement that is done with the mixing of Catholicism. It was active in France's kingdom.
Primarily throughout the seventeenth and eighteenth centuries, Jansenism flourished inside Roman Catholicism before being denounced as heresy in 1653 by Pope Innocent X.
Thus, the yearning of common people to participate in what they perceived as God's direct action is proof of the rebirth of Jansenism.
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Which are nutrition components that must appear on the nutrition facts food label?
Total calories (kcal), calories from fat, saturated fat, trans fat, cholesterol, sodium, total carbs, fiber, sugars, protein, vitamin A, vitamin C, calcium & iron are nutrition components that must appear on the nutrition facts food label.
Nutrition is an important factor in health and development. Better nutrition is associated with improved infant, child, and maternal health, stronger immune systems, safer pregnancies and births, reduced risk of non-communicable diseases (such as diabetes and cardiovascular disease), and longer lifespans. doing. Healthy children learn better. Well-nourished people are more productive and can create opportunities to gradually break the cycle of poverty and hunger.
Malnutrition in all its forms poses a significant threat to human health. I'm facing Malnutrition has several forms and including undernutrition (wasting or underdevelopment), inadequate vitamins or minerals, overweight, obesity, and consequent diet-related noncommunicable diseases.
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(a) the element with one more proton in its nucleus than a chlorine atom
false assertion because An electron has a negative charge, whereas a proton has a positive charge. The element has one extra proton in its nucleus than a chlorine atom. The charges are opposing yet of equal magnitude.
A proton is what?A proton is a stable subatomic particle with the symbols p, H+, or 1H+ and an electric charge of +1 e. Its mass is 1836 times greater than that of an electron and only slightly less than that of a neutron.
A proton is a stable subatomic particle with the symbols p, H+, or 1H+ and an elementary electric charge of +1 e. Its mass is 1836 times that of an electron and slightly less than that of a neutron.
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Which could represent the reaction mixture after the complete combustion of acetaldehyde, ch3cho?
The term that represents the reaction mixture after the complete combustion of acetaldehyde, ch3cho is H-O-H, O-C-O. The correct option is b.
What is complete combustion?Complete combustion is the process of consuming all oxygen in the reaction. In the process of combustion, oxygen is needed for the process. In incomplete combustion, oxygen is not present in the reaction.
In incomplete combustion, less energy is produced because of less oxygen in the reaction.
The inorganic substance that is showing the complete combustion process is H-O-H, O-C-O.
Thus, the correct option is b. H-O-H, O-C-O.
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The question is incomplete. Your most probably complete question is given below:
a. C-O; O-H, O-C
b. H-O-H, O-C-O
c. H-C-C-C-H
d. C-O, O-C, H-H
e. O-C-H, H-H-H
4. Which of the following careers requires the study of chemistry? (Choose all that apply)
1. Pharmacist
2. Doctor
3. Nurse
4. Science teacher