The hydroxide ion concentration in the solution is 1.788 × 10⁻¹¹ M. The amount of any ion present in a solution is typically represented in moles per liter as ionic concentration.
What is meant by ionic concentration?An indicator of an environment's ion concentration is an environment's ionic strength. Ions are formed from ionic chemicals when they dissolve in water. Significant aspects like the dissociation constant or the solubility of various salts will be impacted by the total concentration of electrolytes in the solution. Normal brain processes depend on the maintenance of ion concentration homeostasis, and variations in this state can cause a variety of pathological disorders, including seizures.
The equation to calculate pOH of the solution is
pOH = - log[OH⁻]
Given:
pOH = 10.75
Hence, 10.75 = - log[OH⁻]
[OH⁻] = [tex]10^{-10.75}[/tex] = 1.788 × 10⁻¹¹ M
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The complete question is:
The pOH of a solution is 10.75. What is the concentration of OH ions in the solution?
Use [OH-10 POH
3.162 x 10-108 M
1.778 x 10-11 M
1.075 x 102 M
5.623 x 1010 M
When 2 moles of ammonia ([tex]NH_{3}[/tex]) decomposes into nitrogen gas ([tex]N_{2}[/tex]) and hydrogen gas ([tex]H_{2}[/tex]), how many moles of nitrogen gas are produced?
- 1 mole
- 2 moles
- 3 moles
- 4 moles
When 2 moles of ammonia ([tex]NH_{3}[/tex]) decomposes into nitrogen gas ([tex]N_{2}[/tex]) and hydrogen gas ([tex]H_{2}[/tex]), how many hydrogen gas are produced?
- 1 mole
- 2 moles
- 3 moles
- 4 moles
Two moles of ammonia result in one mole of nitrogen and three moles of hydrogen. This process is endothermic.
How many moles of ammonia can you make from 2 moles of nitrogen gas?When we combine two moles of nitrogen with six moles of hydrogen, we get two moles of ammonia.Nitrogen gas and hydrogen gas are produced during the decomposition of ammonia. Two moles of ammonia result in one mole of nitrogen and three moles of hydrogen. This process is endothermic.It takes 6 moles of "H (2)" to produce 4 moles of ammonia, which is equal to "3/cancel(2) xx cancel(4(2))".There are three hydrogen atoms in a mole of NH3. Therefore, there are 6 hydrogen atoms in two moles.To learn more about ammonia refer to:
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how many moles of copper are 4.57 x 10^15 atoms of copper?
There will be 7.58*10^-9 moles of copper atoms in 4.57*10^15 atoms of copper.
what is meant by 1 mole?A substance's mole is equivalent to 6.022 x 1023 of that material (such as atoms, molecules, or ions). The term "Avogadro's number" or "Avogadro's constant" refers to the number 6.022 1023. To convert between mass and the number of particles, use the mole concept.
What is the short definition of Avogadro's number?Avogadro's number, which is equal to 6.02214076 1023, is the number of units in one mole of any material (defined as its molecular weight in grams). Depending on the substance and the nature of the reaction, the units may be electrons, atoms, ions, or molecules.
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A sample compound with a formula mass of 34. 00 amu is found to consist of 0. 44 g h and 6. 92 g o. Find its molecular formula.
The molecular formula of the compound has been [tex]$\mathrm{H}_2 \mathrm{O}_2$[/tex].
How to estimate molecular formula?By calculating the moles of the molecule using the empirical formula, the molecular formula of a chemical has been determined.
The moles of the compound has been given by:
[tex]$\text { Moles }=\frac{\text { Mass }}{\text { Molar mass }}$$[/tex]
The moles of hydrogen in [tex]$\mathbf{0 . 4 4} \mathbf{~ g}$[/tex] :
Moles [tex]$=\frac{0.44}{1}$[/tex] Moles = 0.44 mol
The moles of hydrogen in the compound have been 0.44 mol.
The moles of oxygen in 6.92 gram has been:
Moles [tex]$=\frac{6.92}{16}$[/tex]
Moles [tex]$=0.44 \mathrm{~mol}$[/tex]
The moles of oxygen in the compound have been [tex]$\mathbf{0 . 4 4} \mathrm{mol}$[/tex].
The moles have been equivalent to the empirical formula of the compound has been OH.
The mass of the compound has been 34 g/mol.
The mass of the empirical formula has been 17 g.
The formula unit of empirical formula has been:
Formula unit [tex]$=\frac{34}{17}$[/tex]
Formula unit = 2
The molecular formula of the compound has been [tex]$\mathrm{H}_2 \mathrm{O}_2$[/tex].
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How many particles are in 2.5 moles of Argon, Ar?
Answer: 2.5 moles of Argon, Ar contains 15.055 x 10^23 particles. ✅
Explanation:
To find the number of particles in 2.5 moles of Argon, we can use the Avogadro's number. Avogadro's number is the number of atoms, ions or molecules in one mole of a substance. It is defined as 6.022 x 10^23 particles per mole.
To convert moles to particles, we can multiply the number of moles by Avogadro's number.
2.5 moles x 6.022 x 10^23 particles/mole = 15.055 x 10^23 particles
So, 2.5 moles of Argon, Ar contains 15.055 x 10^23 particles.
When NH3(g) reacts with O2(g) to form N2O(g) and H2O(l) , 342 kJ of energy are evolved for each mole of NH3(g) that reacts.
Since 342 kJ of energy are evolved for each mole of NH₃(g), and there are 2 moles of NH₃(g) in the balanced equation, the heat evolved will be2 × 342 kJ = 684 kJ. By convention, when heat is evolved, it takes a negative sign. The balanced thermochemical equation is:
2 NH₃(g) + 2 O₂(g) ⇒ N₂O(g) + 3 H₂O(l) ΔH° = -684 kJ
What is NH3?Ammonia occurs naturally and is produced by human activity. It is an important source of nitrogen which is needed by plants and animals. Bacteria found in the intestines can produce ammonia. Ammonia is a colorless gas with a very distinct odor. This odor is familiar to many people because ammonia is used in smelling salts, many household and industrial cleaners, and window-cleaning products. Ammonia gas can be dissolved in water. This kind of ammonia is called liquid ammonia or aqueous ammonia. Once exposed to open air, liquid ammonia quickly turns into a gas. Ammonia is applied directly into soil on farm fields, and is used to make fertilizers for farm crops, lawns, and plants. Many household and industrial cleaners contain ammonia.
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What is the chemical energy - storage molecule produced from photosynthesis ?
Photosynthesis is essential among most life on the planet. Plants, algae, as well as some kinds of bacteria carry out the process by capturing solar energy to create oxygen (O2) as well as chemical energy stored within glucose (a sugar).
Adenosine triphosphate (ATP), the primary energy-storing molecule within living things, transforms solar energy into chemical energy. The chemical energy required to drive further metabolic reactions would then be provided by ATP, which has been carried throughout the chloroplast.
The thylakoid membrane is the site of light-dependent processes. They need light to function, and their overall conversion of water molecules towards oxygen produces ATP molecules through ADP and Pi as well as NADPH molecules out from reduction of NADP+.
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an apple with a mass of 0.52 kg is hanging in a tree 3.4 meters above the ground.
how much potential energy does it have
Answer:
Explanation:
Mass=0.52kg
Gravitational constant g=9.8
Height h=3.4m
Potential Energy(PE)=h*mg
PE=3.4*0.52*9.81
PE=17.344j
Draw the Lewis structure of SF5+ on paper.
(a) What is the total number of electron pairs in this Lewis structure?
(b) What is the number of nonbonding electron pairs on the central atom?
(c) What is the geometry of the electron pairs around the central atom?
(d) What is the geometry of the molecule?
SF holds ten elections in the central Splunk atam In a tigenal two - tier structure structure, this indicates there are 5 electron pairs annanged. Two are exidl and three of a Fluonne are equatonal.
What are electron pairs used for?Each atom in a bond between two atoms will share 1 electron. The electrons taking part in this connection are referred to as the electron bond pairs. Example: All four hydrogen atoms in the methane molecule form a bond link with the central carbon atom.
What do lone pair and an electron pair mean?Bond pairs refer to the shared electron pairs that exist between the bound atoms. Bonding may not involve all of the valence electrons. Lone pair of electrons are defined as electron pairs without a partner in a bond. For instance, there really are seven bond pairings but no lone pair in C2H6 (ethane).
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Identify the least reactive element from the following.A816 XB1020 XC1123 XD919 X
1020 X is the least reactive element. The least reactive elements are the inert gases. Inert gases have an atomic number of 2, 10, 18, 36, 54, and 86.
What does an atomic number mean?The quantity of protons in an atom's nucleus is known as the atomic number. The amount of protons determines an element's identity.
The atomic number is where?The number of protons in an atom's nucleus, that is also equivalent to the amount of electron inside an uncharged atom, is indicated by the word "atomic number," which is typically represented by the letter Z. The neutron number is a representation of the amount of neutrons (N).
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The correct question is
Identify the least reactive element of the following?
A) 168X
B) 2010X
C) 2311X
D) 199X
a log is added to a camp fire and is bured. this is an example of a change.
Answer:
Chemical Change
Explanation:
A log is added to a camp fire and is burned. This is an example of a chemical change.
Write a statement that summarizes the results of the experiment.
Scientific law is a brief assertion that condenses the findings of several observations and experiments.
How do you summarize the results of an experiment?Give a general overview of the subject at hand, referencing any pertinent research. Give an explanation of how your experiment might add to earlier discoveries. Shorten the introduction. Try to keep your experiment's specific methodology and data a secret.
Along with tabulating the data and diagramming the process, it also describes how it was done. A science project should demonstrate whether the experiment was effective or not and make suggestions for additional research. A science project summary should make the project easier to understand for others.
The goal of summarization is to condense a large body of text. Either unnecessary or extraneous content has to be removed, or the most important portion of a lengthy paper is to be made immediately obvious.
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If a bond cleave next to the heteroatoms such as oxygen, sulfur and nitrogen generates a resonance stabilized cation. For instance, breaking the bond among carbon after alcohol radical generates a carbocation which is stabilized by resonance. This is named alpha cleavage and it is usually found in alcohols.
The Alpha cleavage of the alcohols is when a bond will cleave next to the heteroatoms to generates the resonance stabilization of the cation. This cleavage generally found in the alcohols.
The bond cleavage next to the heteroatoms like as oxygen, sulfur and the nitrogen will generates the cations that is resonance stabilize. The cleavage of bond in between the carbon and the carbon that is next to atom generated the cation and it is resonance stabilized. This Alpha bond cleavage is generally found in the alcohols.
Thus, the alpha bond cleavage is breaking of the carbon - carbon bond that is adjacent to carbon attached to the functional group.
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What do covalent bond and organic compound have in common?
Answer:
Covalent bonds are much more common in organic chemistry than ionic bonds. A covalent bond consists of the simultaneous attraction of two nuclei for one or more pairs of electrons. The electrons located between the two nuclei are bonding electrons.
Explanation:
Atom Valence
Oxygen 2
Sulfur 2
Nitrogen 3
Carbon 4
Copper metal, Cu(s), will spontaneously reduce which of the following?
a) Fe2+ and Ag+
b) Fe2+
c) Ag+
d) Al3+
e) Fe2+ and Al3+
Cu(s), will spontaneously reduce Fe2+ and Ag+. Thus option A is the answer.
A redox (reduction-oxidation) reaction is a chemical reaction in which one species (the reducing agent) loses electrons, while another species (the oxidizing agent) gains electrons. The reducing agent is said to be reduced, while the oxidizing agent is said to be "oxidized." In this case, copper metal, Cu(s), is the reducing agent, and [tex]Fe2+[/tex] and [tex]Ag+[/tex] are the oxidizing agents.
In the redox reaction, copper metal will lose electrons and is oxidized to Cu2+. The Fe2+ and Ag+ ions will gain electrons and be reduced to Fe and Ag, respectively. This process is spontaneous because the final state of the reaction is more stable than the initial state.
The reaction can be written as:
[tex]Cu(s) + Fe^{2+} -- > Cu^{2+} + Fe(s)[/tex]
[tex]Cu(s) + Fe^{2+} -- > Cu^{2+} + Fe(s)[/tex]
In summary, copper metal is a stronger reducing agent than Fe2+ and Ag+ ions, which is why the reaction is spontaneous.
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A dragster, waits for the green light and speeds to 127 m/s in 11 seconds. What is the acceleration?
Answer: it would be x=7.5 m/s because you put x= 60-0 over 8 and i think dvide
Complete the following sentences on the acid-base properties of salts.
1. A salt consisting of the conjugate base of a ____________ and conjugate acid of a ____________ will be neutral since neither will react with water.
2. The salt consisting of the conjugate base of a ____________ and the conjugate acid of a ____________ will be acidic since the conjugate ____________ of a ____________ is acidic.
3. A salt consisting of the conjugate base of a ____________ and the conjugate acid of a ____________ will be basic since the conjugate ____________ of a ____________ is basic.
4. A salt consisting of the conjugate base of a ____________ and conjugate acid of a ____________ can be either acidic or basic depending on the relative Ka and Kb of the respective ions.
Word Bank: Weak base, Weak acid, Strong base, Base, Strong acid, Acid
The acid - base properties of the salt :'
1) Strong acids and strong base
2) Strong acid , weak base, acid and weak acid
3) Weak acid, strong base , base and the weak acid
4) Weak acid and the weak base
1) A salt consisting of the conjugate base of a strong acid and conjugate acid of a strong base will be neutral since neither will react with water.
2) The salt consisting of the conjugate base of a strong acid and the conjugate acid of a weak base will be acidic since the conjugate acid of a weak acid is acidic.
3) A salt consisting of the conjugate base of a weak acid and the conjugate acid of a strong base will be basic since the conjugate base of a weak acid is basic.
4) A salt consisting of the conjugate base of a weak acid and conjugate acid of a weak base can be either acidic or basic depending on the relative Ka and Kb of the respective ions.
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Draw the structure of acetylsalicylic acid. Circle the ester group. List two things which might be done in order to help facilitate the recrystallization of acetylsalicylic acid. What did your ferric chloride test indicate? List several common inert ingredients of aspirin.
Acetylsalicylic acid (ASA) is commonly known as Aspirin. Its structure contains a benzene ring on the left side and two functional groups, carboxylic acid and ester group linked to it.
The molecular formula of acetylsalicylic acid is C₉H₈O₄ and the expanded formula is CH₃COOC₆H₄COOH.
The crude aspirin should be dissolved in a small amount of warm ethanol to aid in the recrystallization of acetylsalicylic acid. Water will then be added, and the solution will be gradually cooled and chilled. The ASA will recrystallize, leaving the solid impurities dissolved in the solution.
The ferric chloride test detects the presence of phenol. The formation of purple color indicates a positive test result.
Several common inert ingredients of aspirin are:
Colloidal silicon dioxideCornstarchCroscarmellose sodiumHypromelloseIron oxide red Microcrystalline cellulosePolyethylene glycolPolysorbate 80Stearic acid Titanium dioxideLearn more about recrystallization here
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A set of chemistry exam scores are normally distributed with a mean of 707070 points and a standard deviation of 555 points. What proportion of exam scores are between 686868 and 737373 points? you may round your answer to four decimal places.
The proportion of exams scores between 68 and 73 points is 38.09%.
First, we need to calculate the z-score of both points.
Formula for z-score is:
z-score = (x – mean) / SD
In this case, given that:
Mean = 70
SD = 5
So, for exam score 68 points:
z-score = (68 – 70) / 5
= –2 / 5
= –0.4
And, for exam score 73 points:
z-score = (73 – 70) / 5
= 3 / 5
= 0.6
Thus, the probability:
P (68 < x < 73) = P (–0.4 < z < 0.6)
By using the z-table:
P (–0.4 < z < 0.6)
= (0.5 – 0.3446) + (0.7258 – 0.5)
= 0.3809
= 38.09%
Hence, the proportion of exams scores between 68 and 73 points is 38.09%.
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Please help
Solid sodium reacts with fluorine gas.
The theoretical yield of the reaction is calculated as 28.2 g NaF.
25.9 g NaF were recovered after the reaction.
What is the percent yield of for the reaction?
2Na + F2 → 2NaF [ ? ]%
Considering the definition of percent yield, the percent yield for the reaction is 91.84%.
Definition of percent yieldThe percent yield is the ratio between the actual yield and the theoretical yield expressed as a percentage.
The percent yield is calculated as:
percent yield= (actual yield÷ percent yield)×100%
where:
The actual yield is the amount of product obtained from a chemical reaction.The theoretical yield is the amount of product that is obtained from the stoichiometric equation using the limiting reagent to determine the product.Percent yield in this case.In this case, you know:
Actual yield= 25.9 gTheoretical yield= 28.2 gReplacing in the definition of percent yield:
percent yield= (25.9 g÷ 28.2 g)×100%
Solving:
percent yield= 91.84%
Finally, the percent yield is 91.84%.
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Arrange the following compounds in order of decreasing boiling point. Rank from largest to smallest.
Sort the items in ascending size. Alcohol (primary>secondary>tertiary) > Amines (primary>secondary>tertiary) compounds with a lower boiling point are ALKANES in that order.
What exactly is indeed a compound element?A compound in chemistry is a substance composed of two or more separate chemical elements mixed together in a certain proportion. When the elements are combined, they react with one another and create chemical connections that are challenging to dissolve. These bonds are formed as a result as atoms sharing or trading electrons.
How are compounds made?Whenever a group of atoms unite to form a pure material, compounds are created. These can be reduced to their component atoms. The atoms of a reactants interact during chemical reactions to create new compounds. Reacting species are known as reactants, while the results of the reaction are known as products.
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The correct question is
List the following compounds in order of decreasing boiling point: Rank from largest to smallest. To rank items as equivalent, overlap them.
In the preindustrial era, settlements were more likely to be near sources of surface water than in the industrial era.a. True b. False
Pre-industrial villages were more likely to be found close to surface water sources than industrial ones were. is Valid
Why has groundwater increased?The growing population is the main cause of the growth in groundwater use. The increased usage of groundwater is a result of both urbanization and pollution. Groundwater cannot be successfully sourced from contaminated rivers, lakes, or springs. Between pre- and post-industrial eras, groundwater use reduced.
Similar issues arise when water is extracted from the ground quicker than it can be replaced. As a result of pumping, groundwater storage volume is falling in several parts of the United States. The main cause of ongoing groundwater pumping is groundwater depletion. The Ogallala Aquifer is the country's biggest aquifer. The High Plains aquifer system, which extends from Texas to South Dakota, supports a portion of eight different states.
Therefore the correct answer is option b ) true .
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How many grams are in 12 atoms of carbon?
12 atoms of carbon is equal to 12 x 12.011 grams, or 144.132 grams.
The atomic mass of carbon is 12.011 g/mol, which means that one mole of carbon contains 12.011 grams. Therefore, to find the mass of 12 atoms of carbon, we need to multiply 12.011 by 12, which equals to 144.132 grams.
This is because 1 mole of any element is equal to 6.022 x 1023 atoms. To calculate the mass of 12 atoms, we need to divide 12 by 6.022 x 1023, which is equal to 1.99 x 10-23 moles.
Once we have this number, we can multiply it by 12.011 to get the mass of 12 atoms of carbon. This gives us the final answer of 144.132 grams for 12 atoms of carbon.
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7. The relative atomic mass of lithium is 6.94 and its atomic number is 3. Which one
statement below can be correctly deduced from this information?
A) All ions of lithium contain three electrons.
B) All atoms of lithium contain equal numbers of electrons and neutrons.
C) Some atoms of lithium contain more than three electrons.
D) All atoms of lithium contain three protons.
Lithium is an alkali metal with the atomic number = 3 and an atomic mass of 6.941 g/mol. All ions of lithium contain three electrons.
What Is lithium the drug used for?Lithium is a type of medicine known as a mood stabiliser. It's used to treat mood disorders such as: mania (feeling highly excited, overactive or distracted) hypo-mania (similar to mania, but less severe)
What lithium does to the brain?At a neuronal level, lithium reduces excitatory (dopamine and glutamate) but increases inhibitory (GABA) neurotransmission; however, these broad effects are underpinned by complex neurotransmitter systems that strive to achieve homeostasis by way of compensatory changes.
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How many moles of o2 are needed to react with 12 moles of c2h6?2C2H6 + 702 — 4CO2 + 6H20
21 moles of O2 are needed to react with 12 moles of C2H6.
The balanced chemical equation for the combustion of ethane (C2H6) is:
2C2H6 + 7O2 -> 4CO2 + 6H2O.
From the balanced equation, we can see that for every 2 moles of C2H6 that react, 7 moles of O2 are needed.
Since you have 12 moles of C2H6, the number of moles of O2 needed for the reaction would be:
12 moles C2H6 / 2 moles C2H6/7 moles O2 = 12 moles C2H6 / 2/7 moles O2 = 12*7/2 = 42/2 = 21 moles O2.
Therefore, 21 moles of O2 are needed to react with 12 moles of C2H6.
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Complete the table below.
some binary molecular compounds
name; chemical formula
disulfur heptoxide; ___
sulfur tetroxide; ___
disulfur trioxide; ___
sulfur dioxide; SO2
The chemical name and the chemical formula of compound is menioned as : disulfur heptoxide; S2O7 ,sulfur tetroxide; SO4 , disulfur trioxide; S2O3 , sulfur dioxide ; SO2
Disulfur heptoxide is a binary molecular compound with the chemical formula S2O7. It is composed of two sulfur atoms and seven oxygen atoms. It is an unstable compound that exists only in the gaseous state, it is a powerful oxidizer and is highly reactive. It is often used as a reagent in laboratories and in industry, but it is not found naturally and is not used as a commercial product.
Sulfur tetroxide (SO4) is a binary molecular compound, which is composed of sulfur and oxygen atoms. It has the chemical formula SO4. It is a colorless solid or a colorless or yellowish liquid that has a pungent, suffocating odor and is hygroscopic. It is a strong oxidizing agent and is used in the production of sulfuric acid.
Disulfur trioxide (S2O3) is a binary molecular compound, which is composed of sulfur and oxygen atoms. It has the chemical formula S2O3. It is a highly unstable compound that is not found naturally, it is a powerful oxidizing agent and is highly reactive.
Sulfur dioxide (SO2) is a binary molecular compound, which is composed of sulfur and oxygen atoms. It has the chemical formula SO2. It is a colorless gas with a strong, choking odor. It is a reducing agent and is used as a preservative in food and wine, and as a reducing agent in various chemical reactions.
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Hannah is trying to figure out how tooth size is determined in two different wolves. In wolf 1, the copies of the gene are different from each other. In wolf 2, the copies of the gene are the same as each other. How does this affect how many types of proteins there are in each tooth cell?
A) Wolf 1 has one type of protein for the tooth size feature. Wolf 2 has one type of protein for the tooth size feature.
B) Wolf 1 has two types of protein for the tooth size feature. Wolf 2 has one type of protein for the tooth size feature.
C) Wolf 1 has two types of protein for the tooth size feature. Wolf 2 has two types of protein for the tooth size feature.
D) It is impossible to say anything about proteins from the given information.
The way the copies of the gene in the wolves affects the number of types of proteins in each tooth cell is B) Wolf 1 has two types of protein for the tooth size feature. Wolf 2 has one type of protein for the tooth size feature.
How does genes affect protein ?The gene that determines tooth size in wolves is located on a specific chromosome, each individual has two copies of that chromosome, one inherited from each parent.
If the copies of the gene in Wolf 1 are different from each other, it means that the wolf is heterozygous for that gene, meaning it has two different versions of the gene, one inherited from each parent. This leads to the production of two different types of proteins in each tooth cell, and thus a variation of tooth size in Wolf 1.
If the copies of the gene in Wolf 2 are the same as each other, it means that the wolf is homozygous for that gene, meaning it has two identical copies of the gene inherited from the same parent.
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This immense range began to form between 40 and 50 million years ago when two large landmasses India and Eurasia driven by plate movement interacted
This immense mountain range began to form between 40 and 50 million years ago, when two large landmasses, India and Eurasia, driven by plate movement, collided is referred to as Himalaya and is therefore denoted as option B.
What is a Mountain?This is referred to as an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock.
The pressure of the impinging plates from the immense mountain ranges when India and Eurasia collided and was relieved by thrusting skyward, formed what is known as the Himalaya mountains which is why option B was chosen as the correct choice.
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The full question is:
This immense mountain range began to form between 40 and 50 million years ago, when two large landmasses, India and Eurasia, driven by plate movement, collided. Because both these continental landmasses have about the same density, one plate could not be subducted under the other. The pressure of the impinging plates could only be relieved by thrusting skyward, and forming the _______________ Mountains.
A) Eurasian
B) Himalaya
C) Rocky
D) Ural
Bacterial fermentation of sugars usually results in results in ___________ end products. end products whereas breakdown of proteins and amino acids the formation of __________
Multiple Choice
O acidic........alkaline
O acidic.....alcoholic
O alkaline.......sulfide
O alcohol........acidic
O alkaline........acidic
In most cases, acidic byproducts of bacterial fermentation of carbohydrates are produced. while proteins & amino acids break down, alkaline is produced as an end result.
What outcomes from bacterial fermentation?SCFAs and fuel dioxide, methane, and hydrogen—are the byproducts of fermentation. Colonic bacteria also digest proteins and poorly absorbed starches from the upper GI tract in additional to nonstarch polysaccharides.
Where does fermentation of bacteria take place?All animals' gastrointestinal tracts undergo fermentation, although the degree of fermentation varies depending on the number of microbes present, which is typically highest inside the large bowel.
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What part of the small intestine is the most important for nutrient absorption and what else occurs at this location what makes the small intestine unique?
Part of the small intestine is the most important for nutrient absorption is the jejunum and what else occurs at this location what makes the small intestine unique is it contains villi which increase the surface area to aid absorption.
The small intestine is part of the digestive tract which consists of villi, circular muscles, longitudinal muscles, mucous lining, and epithelium. In the small intestine, a chemical digestion process occurs where enzymes break down complex organic matter molecules into simpler molecules which are then absorbed by the epithelial cells.
Jejunum is part of the small intestine which is red in color because it contains lots of blood vessels and is located between the duodenum and ileum. Jejunum is the most important part of the small intestine because it absorbs most of the nutrients from food and water so that it can be used by the body. In the jejunum there are folds or projections called villi. Villi function to expand the surface of the small intestine which helps the absorption process.
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Neon has three naturally occurring isotopes. In a sample of neon, 80.75% of the atoms are Ne-20, which is an isotope of neon with 10 neutrons and a mass of 19.99 AMU. Another 0.25% of the atoms are Ne-21, which is an isotope of neon with 11 neutrons and a mass of 20.99 AMU. The final 19% of the atoms are Ne-22, which is an isotope of neon with 12 neutrons and a mass of 21.99 AMU. What is the atomic mass of neon? Show your work.
The average atomic mass of neon is derived from the isotopic masses and percentage abundance. The average atomic mass of neon is 20.37 amu.
What are isotopes?Isotopes are atoms of same element with different atomic mass numbers. Almost all elements have two or more isotopes but not all of them are stable in nature.
The average atomic mass can be calculated from the isotopic mass and and percentage abundance as follows:
atomic mass = ∑ (isotopic mass × %abundance /100 )
Apply the isotopic mass and abundance of all isotopes given as follows:
atomic mass of neon = (80.75/100 ×19.99 amu) + (0.25/100 ×20.99 amu) + (19/100 × 21.99 amu) = 20.37 amu.
Therefore, the atomic mass of neon is 20.37 amu.
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