Answer:
fungi
Yeasts are eukaryotic organisms that are included in a group of organisms called “fungi,” which also includes molds and mushrooms. Yeasts can have both positive and negative effects on fermented products consumed by humans and animals.
Explanation:
Answer: Fungi
Explanation:
Yeasts are eukaryotic organisms that are included in a group of organisms called “fungi,” which also includes molds and mushrooms. Yeasts can have both positive and negative effects on fermented products consumed by humans and animals.
compound present in many foods has the formulka c44h86o8np. to which class of molecules does this compound belong?
The class to which the compound present in several foods with the formula C44H86O8NP belongs to is lipids.
What are class of compounds?
Compound Classification Compounds can be divided into ionic and covalent classes based on how they form. When a metal and a non-metal come together, ionic compounds are created. Due to the presence of ions, they are also known as electrovalent compounds.
The MMPE compound is the one that makes up the chemical's molecule. Monomethylphosphatidylethanolamine is referred to as MMPE. It is a member of the lipids class and is found in a variety of foods.
Thus the molecule belongs to the class of lipids.
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PLS HELP!!! WILL MARK BRAINLIEST PICTURE ATTACHED
Compelling questions evoke thought and do not have a straight answer.
What are compelling questions?The term compelling questions could be used to describe those types of questions that could have as many answers as possible based on the perspective of a person. There is no single answer to a compelling question.
The compelling questions are;
Are there conflicts in the world?Is peace possible in the world?How can we eliminate poverty?The term supporting questions refers to the questions that buttress a point. They include;
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Answer: monke.
Explanation: 100% correct
which of the nonsilicate groups contains minerals that are commonly yellow in color, have a metallic luster, and contain important metal ores?
The nonsilicate groups contains minerals that are commonly yellow in color, have a metallic luster, and contain important metal ores.
What are non silicate groups?
Minerals can be categorised as silicate, which means they include silicon and oxygen, or non-silicate, which means they don't. Even though silicate minerals make up the majority of the earth's crust, a number of non-silicate minerals are very significant.
Metallic-looking minerals are opaque, highly reflective, and have a high absorptive index. Galena, pyrite, and other minerals with a metallic lustre are a few examples of native copper, gold, and silver.
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how are pure carbon, oxygen, and hydrogen different from the compound ethenol which contain all three of those elements?
Carbon, Oxygen and Hydrogen are pure elements with their unique properties and ethanol is a compound with completely different properties made with a mixture of these three elements.
Carbon is a greyish black solid in its pure form. Oxygen in its pure form is a colourless, odourless and tasteless gas. Hydrogen is a colourless, odourless, tasteless, non-toxic and highly combustible gas in its pure form.
Ethanol, having all the three mentioned elements is an organic compound with a characteristic pungent taste and wine-like odour. Ethanol is a colourless, flammable and volatile liquid.
Ethanol is generally produced due to natural fermentation of alcohols and sugars. It is chemically written as [tex]C_2H_5OH[/tex] and has a molar mass of 46.07g/mol and boiling point of 78.37℃.
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You have a pcr template sample containing 100 molecules of dsdna. if you ran 5 pcr cycles, what is the highest number of molecules you could have?
Answer:
500
Explanation:
because it is
An object with a mass of 11.0 kg accelerates 7.0 m/s2 when an unknown force is applied to it. What is the amount of the force?
Answer:
77N
Explanation:
f=ma
f=11×7
force= 77N
what is aspirin and what is it used for
Answer: Aspirin is used to reduce fever and to relieve mild to moderate pain from headaches, menstrual periods, arthritis, toothaches, and muscle aches.
Explanation:
Aspirin is in a group of medications called salicylates. It works by stopping the production of certain natural substances that cause fever, pain, swelling, and blood clots. Aspirin is also available in combination with other medications such as antacids, pain relievers, and cough and cold medications.
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Carbon is a group 4a element. how many covalent bonds are there in methane, ch4?
4 covalent bonds will be formed by Group 4A elements. One carbon atom forms a connection with four hydrogen atoms to create the methane molecule (CH4).
What are covalent bonds?When two atoms exchange one or more pairs of electrons, a covalent connection is created. These electrons are being drawn to the two atomic nuclei at the same time.
When the difference between the electronegativities of two atoms is too tiny for an electron transfer to take place to create ions, a covalent bond is formed.
Atoms join together in a covalent bond by exchanging electrons. Nonmetals typically form covalent connections with one another. For instance, each hydrogen (H) and oxygen (O) atom in water (H2O) shares a pair of electrons to form the molecule of two single-bonded hydrogen atoms and one single-bonded oxygen atom.
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educible complexity is the idea that many molecular machines are simply too complex to have formed via evolution.
irreducible complexity is the idea that many molecular machines are simply too complex to have formed via evolution.
What is irreducible complexity?
According to the irreducible complexity (IC) theory, no less complex system would function if some biological systems had evolved by natural selection from a series of minor adjustments to pre-existing functional systems. The creationist theory of intelligent design has made irreducible complexity a core tenet, whereas science rejects both intelligent design and the idea of irreducible complexity. One of the two primary defences of intelligent design, along with specified complexity, is known as irreducible complexity.
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a 71.5 gram sample of cocl2 6 h2o was heated thoroughly in a porcelain crucible, until its weight remained constant. after heating, how many grams of the anhydrous compound remained?
After heating 57.2 grams of the anhydrous compound remained.
First, we convert 66.4 grams of Ba(ClO₄)₂·3H₂O into moles, using its molar mass:
Molar mass of Ba(ClO₄)₂·3H₂O = Molar mass of Ba(ClO₄)₂ + (Molar Mass of H₂O)*3
Molar mass of Ba(ClO₄)₂·3H₂O = 390.23 g/mol
66.4 g ÷ 390.23 g/mol = 0.170 mol Ba(ClO₄)₂·3H₂O
0.170 moles of Ba(ClO₄)₂·3H₂O would produce 0.170 moles of Ba(ClO₄)₂. Meaning we now convert 0.170 moles of Ba(ClO₄)₂ into grams, using the molar mass of Ba(ClO₄)₂:
0.170 mol * 336.23 g/mol = 57.2 g
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What is the difference between nuclear fission and nuclear fusion?
A
Nuclear fusion explodes the nucleus of an atom, while nuclear fission harnesses the atom’s kinetic energy.
B
Nuclear fission splits an atom apart, while nuclear fusion fuses two atoms together.
C
Nuclear fission creates electrical energy, while nuclear fusion creates chemical energy.
D
Nuclear fusion splits hydrogen atoms apart, while nuclear fission fuses uranium atoms together.
Nuclear fission splits an atom apart, while nuclear fusion fuses two atoms together. Option B.
Nuclear fission vs Nuclear fusionIn nuclear fission, a heavy nucleus or atom splits into smaller and lighter nuclei or atoms. Energy is released during this process as well.
In contrast, nuclear fusion has to do with the coming together of 2 or more light nuclei or atoms to form a single heavy nucleus or atom. This process requires that energy is consumed.
Thus, nuclear fission can be thought of as a process that splits an atom apart, while nuclear fusion fuses two atoms together.
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Write the net ionic equation for the precipitation of aluminum phosphate from aqueous solution
The balanced net ionic equation when aqueous solutions of Al(NO₃)₃ and Na₃PO₄ are mixed is:
Al³⁺(aq) + PO4³⁻(aq)(aq) → AlPO₄(s)
Balanced molecular chemical equation:
Al(NO₃)₃ (aq) + Na₃PO₄(aq) → AlPO₄(s) + 3NaNO₃(aq)
The balanced ionic equation:
Al³⁺(aq) + 3NO₃⁻(aq) + 3Na⁺(aq) + PO₄³⁻(aq) → AlPO₄(s) + 3Na⁺(aq) + 3NO₃⁻(aq)
The balanced net ionic equation: Al³⁺(aq) + PO₄³⁻(aq) → AlPO₄(s)
Aluminium phosphate (AlPO₄) is a white solid inorganic compound.
(s) is solid state of matter.
(aq) is aquatic solution
This is an example of the double replacement reactions (double displacement or metathesis reactions), two ionic compounds are exchanged, making two new compounds.
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when gas molecules are cool they are sluggish and they take up less space. question 4 options: true false
Yes this statement is true
when gas molecules are cool they are sluggish and they take up less space this yes this statement is true because when gas is cool in that gas particles they are stop moving about so fast and eventually form liquid and take up less space this process is called as condensation and occur at same temperature as boiling and cooling in gas molecule also decrease the speed of the molecule.
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If a reaction takes several days to occur without an enzyme how quickly can it occur with an enzyme.
If a reaction takes several days to occur without an enzyme it can occur in a few seconds with an enzyme.
What are enzymes?Enzymes are proteins that hasten chemical reactions and act as biological catalysts. The substances which are known as substrates that interact with enzymes, and the enzyme changes the substrates into products, which are other molecules. The majority of cellular metabolic activities must use enzyme catalysis to go forward at rates fast enough to sustain life. An enzyme is a type of biological catalyst that is typically always a protein. It quickens or fastens the particular certain chemical process in the cell. During this reaction, the enzyme is continuously used and is not destroyed.Thus, If a reaction takes several days to occur without an enzyme it can occur in a few seconds with an enzyme.
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Hat is s for one mole of crystalline n2o at 0 k if each molecule can exist in only one of two possible orientations? arrangements with same energy (microstates): nno and onn.
The entropy (S) for one mole of crystalline N₂O at 0 K is 3.28 × 10⁻²² J/K.
What is Entropy (S) ?The quantity of thermal energy per unit of temperature in a system that cannot be utilized to carry out meaningful work is termed as entropy.It is denoted by S. Since work is generated by ordered molecular movement, entropy also acts as a substitute for a system's molecular disorder or unpredictability. Entropy theory offers deep insights into how frequently common events spontaneously change.Boltzmann's entropy formula that gives the relation between the absolute entropy S of a thermodynamic system and the number of possible microstates is given as follows :S = k logW , Where K is Boltzmann's constant.
From the given question,
S = (1.38 × 10⁻²³) (6.022 × 10⁻²²)
S = 3.28 × 10⁻²² J/K
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the hydrogens and oxygen of a water molecule are held together by bonds. select all that apply.
The hydrogens and oxygen of a water molecule are held together by covalent bond
The bond which is formed by mutual sharing of electron called as covalent bond
In water molecule the hydrogens and oxygen are connected with covalent bond means mutually sharing of electron. water molecule consists of two atoms of hydrogen linked by covalent bonds to the same atom of oxygen. atoms of oxygen are electronegative and attract the shared electrons in their covalent bonds.
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Hydrogen bonds do not form between two hydrogen atoms. where do hydrogen bonds form?
Hydrogen bonds do not form between two hydrogen atoms. where do hydrogen bonds form?
hydrogen bonds act between adjacent molecules and between atoms of the same molecule. hydrogen bonds form between a slight positive change on the hydrogen atom of a polar covalent bond.
What is molecules?
According to the context, the term may or may not include ions that meet this requirement. A molecule is a collection of two or more atoms held together by the attractive forces known as chemical bonds.
Therefore,
Hydrogen bonds do not form between two hydrogen atoms. where do hydrogen bonds form?
hydrogen bonds act between adjacent molecules and between atoms of the same molecule. hydrogen bonds form between a slight positive change on the hydrogen atom of a polar covalent bond and a slight negative charge on an oxygen atom of another polar covalent bond.
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Which row shows correct statements about the speed at which a gas diffuses?
effect of temperature
diffusion is faster at higher temperatures
diffusion is faster at lower temperatures
diffusion is faster at higher temperatures
diffusion is faster at lower temperatures
ABCD
А
В
с
effect of molecular mass
higher molecular mass diffuses faster
higher molecular mass diffuses faster
lower molecular mass diffuses faster
lower molecular mass diffuses faster
The speed of diffusion of gases is faster at a higher temperature and when the molecular mass of the gas is lower.
Transport that is done passively is called diffusion. Unless the concentration is uniform throughout a space, a single material goes from an area of high concentration to one of low concentration.
Because thermal energy is a function of temperature, molecules move randomly and continuously based on their mass, their surroundings, and their internal energy. This motion takes into consideration the diffusion of molecules across the medium in which they are situated. A material moves into any place that is open to it until it fills the entire area equally.
Molecules will continue to move about in a region after a material has entirely diffused across it, eliminating the gradient of concentration. However, there will not be any net molecule movement from one location to another. We refer to this absence of a gradient of concentration where there is no net movement of the material as dynamic equilibrium. Although diffusion will continue when a substance's concentration gradient is present, a number of things influence the diffusion rate:
(i) Molecular mass: Since heavier molecules travel more slowly, they diffuse more slowly as a result. For lighter molecules, diffusion occurs quicker.
(ii) Temperature: Higher temperatures boost energy, which in turn causes molecules to move more quickly and speed up the diffusion process. Lower temperatures reduce the energy of the molecules, which lowers the diffusion rate.
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indicate whether each property of water is due to the cohesion of water molecules or the adhesion of water molecules.
Cohesion;
High specific heatWater readily dissolves table salt (NaCl)High heat of vaporization Water is a liquid rather than a gas at room temperatureAdhesion;
Water clings to the sides of a glass tubeSubstances made of polar molecules get wet when dipped in waterPaper towels readily absorbs water.What are the forces of adhesion and cohesion?We know that the forces of adhesion are the forces that hold molecules to the surface of the vessel that contains it while the forces of cohesion is the force that holds the molecules of the water together.
Let us now try to see the properties individually;
Cohesion;
High specific heatWater readily dissolves table salt (NaCl)High heat of vaporization Water is a liquid rather than a gas at room temperatureAdhesion;
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suppose you were given a substance and asked to determine whether it was a plasma. what characteristics would be true of the substance for it to be a plasma? check all that apply. the particles in the substance would collide more often.
Plasmas that heat up at the same temperature as their surroundings.
What are Plasmas ?In the substance known as plasma, a large number of electrons are free to move about among the atomic nuclei. The fourth state of matter, after solid, liquid, and gas, has been referred to as plasma. In a sample of matter that is solid, liquid, or gaseous, the electrons typically stick with the same atomic nucleus.
Although plasmas resemble gases, their atoms differ because they are composed of free electrons and ions of an element like neon (Ne). When you look around, you don't come across spontaneously occurring plasmas very frequently. They aren't occurrences that occur frequently on Earth.
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The reaction of a(n) _____ with an alcohol cannot be used to prepare an ester. group of answer choices acid halide carboxylic acid acid anhydride amide
The reaction of an amide with alcohol cannot be used to prepare an ester.
Ester can be defined as a compound that is achieved by the reaction of ternary acid with a chemical compound having -OH(hydroxide) as the functional group.
The amides generally do not react with alcohol because the amides have poor leaving group properties so the preparation of esters is not possible.
The acid halides undergo a nucleophilic substitution reaction with alcohol which results in the formation of the ester with HCL as the by-product.
Fischer esterification is a process that uses an acid catalyst to prepare esters from the reaction of carboxylic acid and alcohol. The hydroxide bond of carboxylic acid and the hydrogen bond of the alcohol is broken and react to form water resulting in esterification.
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the reaction a(g) ⇌ b(g) has an equilibrium constant that is less than one. what can you conclude about ∆g° for the reaction?
For this reaction: ΔG⁰>0.
Balanced chemical reaction A(g) ⇌ (g)
ΔG° indicates that all reactants and products are in their standard states.
ΔG° = R·T·lnK.
ΔG° is Gibbs free energy
T is the temperature on the Kelvin scale
R is the ideal gas constant
The equilibrium constant (K) is the ratio of the partial pressures or the concentrations of products to reactants.
Gibbs free energy (G) determines if reaction will proceed spontaneously, nonspontaneously or in equilibrium processes.
If K < 1, than ΔG° > 0.
Reactants (in this example A) are favored over products (in this example B) at equilibrium.
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why is getting a new haircut considered as physical change?
Answer:
Explanation:
You aren't truly changing your hair, after all. It will regrow, and it is still hair; nothing has changed. Without changing the actual identity, a physical change can modify one or more physical properties. Therefore, getting a haircut is a physical change
Molecular chaperones can work by creating an ""isolation chamber. "" what is the purpose of this chamber?.
The purpose of this "isolation chamber" until protein folding is complete, this chamber prevents unfolded proteins from interacting with other proteins in the cytosol.
What is Isolation chamber?
For limited environmental stimulation therapy, a sensory deprivation tank—also known as an isolation tank or a flotation tank—is employed (REST). A foot or less of salt water is contained within the tank, which is dark and silent.
Heat shock protein chaperones are divided into Hsp60, Hsp70, Hsp90, Hsp104, and tiny Hsps based on their measured molecular weights. Heat shock protein chaperones are proteins expressed in response to elevated temperatures or other cellular stressors. The Hsp60 family of protein chaperones, also known as chaperonins, are present in mitochondria, the cytosol of eukaryotes, and the cytoplasm of prokaryotes. They are distinguished by a stacked double-ring structure.
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PLEASE HELP ILL RATE 5 STARS !!!!
Safety measures need to be taken when experimenting with compressed hydrogen (H)
and nitrogen (N). Ammonia is produced by the Haber process which uses hydrogen gas
from methane (CH4). What WHMIS symbols would you see on the containers of
hydrogen gas, nitrogen gas and methane gas? What safety precautions would an
individual need to take when handling these chemicals?
The gas should not subjected to excessive pressure and that fire extinguishers are always handy.
What is the Haber process?The Haber process is the process that could be used for the production of ammonia gas. The process involves the bringing together of the hydrogen and the oxygen gas under pressure. We know that this reaction is favored when the pressure is increased and the temperature is lowered. The temperature has to be lowered because the process is an exothermic reaction and could only move forward at lower temperature.
The word exothermic means that heat is given out in the process. The heat of the reactants is greater than the heat of the products. We know that risk of explosion is greater for an exothermic gas under pressure.
Given that methane is a highly combustible gas and it is transported under pressure, we must ensure that the gas is not subjected to excessive pressure and that fire extinguishers are always handy.
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The endocrine system is controlled by two types of feedback, _______ feedback_____ and_______ feedback.
Answer:
positive and negative
Explanation:
A conductor is distinguished from an insulator with the same number of atoms by the number of:_____.
A conductor is distinguished from an insulator with the same number of atoms by the number of nearly free electrons.
What are conductors and insulators?Whether an object is made of conductive or nonconductive material affects how it behaves once it has been charged. Electrons can move freely between particles when they are in conductors, which are substances. The charge can be transported across the whole surface of an object constructed of a conducting substance.
A charge is swiftly dispersed across the full surface of the object if it is applied to it at a specific point. The motion of the electrons causes the distribution of charge. A charged object will constantly disperse its charge until the overall repulsive interactions between surplus electrons are minimized because conductors allow electrons to be moved from particle to particle.
Insulators, as opposed to conductors, are substances that prevent electrons from freely moving from one atom or molecule to another.
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The complete question is:
"A conductor is distinguished from an insulator with the same number of atoms by the number of:
A. nearly free atoms
B. electrons
C. nearly free electrons
D. protons
E. molecules"
There is a relationship between force , mass , and speed true or false
Answer:
True.
Explanation:
According to this, an object's rate of change in velocity is directly proportional to the force used and moves in the direction of the applied force. The following formula encapsulates it: force (N) = mass (kg) x acceleration (m/s2). A constant mass item will therefore accelerate in direct proportion to the force exerted.
Answer:
true, I am pretty sure it's true
The covalent bonds linking distant cysteine amino acid residues in protien tertiary structures true or false?.
The assertion it is true that ' the covalent bonds linking distant cysteine amino acid residues in protein tertiary structures .
In the tertiary structure, a protein disulfide isomerase forms a disulfide link between the two -SH groups when two cysteines are placed near together . The disulfide bond can be regarded as a component of the polypeptide of amino acid , which makes up the fundamental structure of proteins , due to its nature .
Cysteine plays a clear role in the tertiary structure of protein s. These residues build disulfide bridges that connect the polypeptide chain fragments , some of which are situated widely apart from one another in terms of their fundamental structure .
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tin(iv) sulfide, sns2, a yellow pigment, can be produced using the following reaction. snbr4(aq) 2na2s(aq)⟶4nabr(aq) sns2(s) suppose a student adds 35.2 ml of a 0.419 m solution of snbr4 to 51.1 ml of a 0.203 m solution of na2s.
The theoretical yield of SnS₂ will be 4.20 gram can be produced using the following reaction
From the equation of the reaction:
The mole ratio of the reactant is 1:2.
Mole of 35.2 mL, 0.419 M SnBr₄ = 0.419 x 35.2/100 = 0.147 mols
Mole of 51.1 mL, 0.203 M Na₂S = 0.203 x 51.1/1000 = 0.0103 moles
Thus, Na₂S is in excess while SnBr4 is limiting.
Mole ratio of SnBr₄ and SnS₂ = 1:1
Equivalent mole of SnS₂ = 0.023 moles
Mass of 0.023 moles SnS₂ = 0.023 x 182.81 = 4.20 grams
Theoretical Yield Formula :The quantity of a product obtained from a reaction which is expressed in terms of the yield of the reaction. the quantity of product predicted by stoichiometry is called the theoretical yield, whereas the quantity obtained actually is called the actual yield.
Is theoretical yield the limiting reactant?
A limiting reagent may be a chemical reactant that limits the amount of product that is formed. The limiting reagent gives the littlest yield of product calculated from the reagents (reactants) available. This smallest yield of product is named the theoretical yield.
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