If both ovaries are removed, then the individual is unable to produce ovules and experiences menopause.
What are ovaries?The ovaries are two reproductive organs in women which act to generate germinal female cells known as ovules.
The absence of these organs (ovaries) leads to a stage known as menopause and the individual cannot produce sex hormones such as estrogen and progesterone.
In conclusion, if both ovaries are removed, then the individual is unable to produce ovules and experiences menopause.
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A student sets up the following equation to convert a measurement.
(The ? stands for a number the student is going to calculate.)
Fill in the missing part of this equation.
Answer:
[tex]\frac{1 m}{100 cm}[/tex]
Explanation:
The final answer has a different set of units. In particular, meters (m) changes to centimeters (cm). To make this change, you need to multiply the first value by proportions.
When writing these proportions, it is important that they are arranged in a way that allows for the cancellation of units. For instance, since m is located in the denominator, it must be located in the numerator of the conversion.
Proportion:
1 m = 100 cm
The full expression:
[tex]-1.7*10^5\frac{V}{m}[/tex] · [tex]\frac{1 m}{100 cm}[/tex] = [tex]? \frac{V}{cm}[/tex] ^As you can see, the old unit (m) cancels out and you are left with cm in the denominator.
Which carbon atom(s) of pyruvate is(are) first converted to carbon dioxide by pyruvate dehydrogenase complex?
The carbon atom(s) of pyruvate is(are) first converted to carbon dioxide by pyruvate dehydrogenase complex is the second number of carbon of pyruvate goes to oxidation and convert it to CO2 in Krebs cycle.
what is Krebs cycle ?Krebs cycle is also known as citric acid cycle it is the conversion of sugar to the direct energy in the form of ATP which further goes to mitochondria as it is the power house of the human cell.
Pyruvate molecule release second number carbon from the chain and undergoes oxidation to form the CO2.
Therefore, second number carbon atom will converts to carbon dioxide.
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What is the compound number (enter both the number and letter without spaces e. g. 1d, 2h) for trans-cinnamic acid?
99 140-10-3.
99 140-10-3 is the compound number for trans-cinnamic acid.
What do you mean by compound numbers?A subscript is the little number that appears to the right of an element's symbol. That figure represents how many atoms of that element are contained in the complex.What is the purpose of trans-Cinnamic acid?The creation of trans-cinnamic acid's methyl, ethyl, and benzyl esters is its primary usage, while it is also used to make flavors, colors, and medications. These esters play a significant role in perfume composition. The sweetener aspartame is a precursor of the acid.What other name would you give trans-Cinnamic acid?Phenolacrylic acid
The class of chemical compounds known as cinnamic acids includes trans-cinnamic acid, often referred to as (e)-cinnamic acid or phenylacrylic acid. These are organic aromatic compounds that generate 3-phenylprop-2-enoic acid from benzene and a carboxylic acid group.To learn more about trans-cinnamic acid visit:
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How are air temperature and humidity related? 1 colder air can hold more water vapor than warmer air. 2 warmer air and colder air can hold the same amount of water vapor. 3 warmer air can move faster than colder air. 4 warmer air can hold more water vapor than colder air.
Warmer air can hold more water vapor than colder air.
Weather is the atmospheric conditions of a specific area over a short period of time.Precipitation, wind, temperature, atmospheric pressure, relative humidity, cloud, and wind speed are all weather elements.Temperature is a measurement of the degree of coldness or hotness of a physical object (body).Humidity, on the other hand, refers to the concentration (amount) of water vapor in the air. It is high when there is a lot of water vapor in the air and low when there is little water vapor.How can humidity levels affect your home's temperature?Your home's windows are fogged with condensation. A musty odor can be detected in the air inside your home. When you breathe in, you can feel the moisture in the air. These indicators indicate that you should act quickly. Moisture levels in your home raise the overall temperature and make it feel hot.
What is Absolute Humidity & Relative Humidity?Humidity is classified into two types: absolute and relative.
The former describes the humidity present in a parcel of air without taking temperature into account, whereas the latter describes the humidity present in the air while taking temperature into account. The former defines the amount of water content by dividing the parcel's weight by its volume, whereas the latter is calculated by dividing the amount of water content present by the total capacity of the parcel of air to hold multiplied by 100. The former decreases with height, whereas the latter becomes saturated when it reaches 100%.
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6.0 mol Al reacts with 4.0 mol O2 to form Al2O3.
4A1+30₂ → 2Al₂O3
How many moles of Al2O3 form when 6.0 mol Al reacts? And how many moles form when 4.0 O2 react?
Answer:
3.0 moles Al₂O₃
Explanation:
We do not know which of the reactants is the limiting reactant. Therefore, you need to convert both of the given mole values into the product. This can be done using the mole-to-mole ratio made up of the balanced equation coefficients.
4 Al + 3 O₂ -----> 2 Al₂O₃
6.0 moles Al 2 moles Al₂O₃
---------------------- x ------------------------- = 3.0 moles Al₂O₃
4 moles Al
4.0 moles O₂ 2 moles Al₂O₃
---------------------- x ------------------------- = 2.7 moles Al₂O₃
3 moles O₂
As you can see, O₂ produces the smaller amount of product. This means O₂ is the limiting reactant. Remember, the limiting reactant is the reactant which runs out before the other reactant(s) are completely reacted. As such, the actual amount of Al₂O₃ produced is 2.7 moles.
However, since this problem is directly addressing how much Al₂O₃ is produced from Al, the answer you most likely are looking for is 3.0 moles Al₂O₃.
How many electrons are transferred in the given redox reaction? zn 2agno3⟶2ag zn(no3)2
The electrons are transferred in the given redox reaction are 2 electrons.
what is redox reaction?When oxidation and reduction that is gaining of electron and loosing of electrons takes place simultaneously in a chemical reaction then it would be known as redox reaction.
In terms of oxygen the gaining of oxygen is oxidation and loosing of oxygen is reduction.
In the given chemical reaction the transfer of two electrons will be as follows
Zn₂ (2e) + AgNo₃ → 2Ag (2e) + Zn(NO₃)₂
It is clear from the reaction their is transfer of two electrons zinc is loosing 2 electrons undergoes to oxidation while silver gets reduced.
Therefore, transfer of only two electrons.
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The reaction between an alcohol and an anomeric carbon of a carbohydrate forms a _____ bond.
What element of a contract refers to both parties receiving some measurable benefit?
a) consideration
b) capacity
c) consent
d) legality
The consideration element is the correct answer.
The exchange of the value is called consideration. The exchange of money is known as value for anything such as services/property, exchange of property, or services.
There are many types of considerations that are given below:
a promise.an act other than a promise,forbearance,money, a small change in a legal connection between the parties,other property.The four important elements of a contract are given below:
Offer & Acceptance,Consideration,Legal Capacity,Legality.If any of the given elements is missing then the contract is voided, and the parties released from the agreement.
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The atomic and mass numbers for four different atoms are given below. Which two are isotopes?
A catalyst that exists in solution with the reaction mixture is called a ______ catalyst. Multiple choice question. homogeneous intermediate enzyme heterogeneous
Answer: Homogeneous catalyst
GIVE BRAINLIEST!!!
(if answer is correct and with explanation)
How could you tell a Ca(NO3)2 solution from a Zn(NO3)2 solution?
Answer:
you better give me brainliest
Explanation:
Zinc nitrate and calcium nitrate solution can be distinguished by reaction with ammonium hydroxide. Zinc forms a white gelatinous ppt. whereas there is no precipitation of calcium hydroxide even with excess of ammonium hydroxide
This is a reaction going on in your muscle cells right this very minute: what is the equilibrium constant for the un-catalyzed reaction?
The equilibrium constant for the un-catalyzed reaction is 0.9
The enzyme triose phosphate isomerase catalyzes the reaction in the forward direction as part of the glycolytic pathway. It follows simple Michaelis-Menten kinetics.
Typical cellular concentrations:
triose phosphate isomerase = 0.1 nM
dihydroxyacetone phosphate = 5 µM
glyceraldehyde-3-phosphate = 2 µM
So, equillibrium constant is
K = [tex]\frac{[P]}{[S]}[/tex]
K = [tex]\frac{ glyceraldehyde-3-phosphate}{dihydroxyacetone phosphate}[/tex]
Therefore, The equilibrium constant for the un-catalyzed reaction is 0.9
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Why does water have a very high boiling point?
Select one:
A. because it forms a three-dimensional pattern called a crystal lattice
B. because it has strong attractions that hold the water molecules together
C. because it is a molecular compound
D. because it does not conduct an electric current
Answer:
B
Explanation:
Hydrogen bonding holds the water molecules together
2.5 moles of a gas is enclosed in a 87.2 L cylinder with a moveable piston at 425 K and 1.0 atm. An additional 2.5 moles of gas is added to the system and it is cooled to 273 K. The cylinder changes volume to maintain the pressure. What is the volume in the final system?
Answer:
112 L
Explanation:
Since the pressure is being held constant, you can use the following variation of the Ideal Gas Law to find the new volume:
[tex]\frac{V_1}{T_1N_1}=\frac{V_2}{T_2N_2}[/tex]
In this equation, "V₁", "T₁", and "N₁" represent the initial volume, temperature, and moles. "V₂", "T₂", and "N₂" represent the final volume, temperature, and moles.
V₁ = 87.2 L V₂ = ? L
T₁ = 425 K T₂ = 273 K
N₁ = 2.5 moles N₂ = 2.5 + 2.5 = 5.0 moles
[tex]\frac{V_1}{T_1N_1}=\frac{V_2}{T_2N_2}[/tex] <----- Formula
[tex]\frac{87.2 L}{(425K)(2.5 moles)}=\frac{V_2}{(273 K)(5.0 moles)}[/tex] <----- Insert values
[tex]\frac{87.2 L}{1062.5}=\frac{V_2}{1365}[/tex] <----- Simplify denominators
[tex]0.08207=\frac{V_2}{1365}[/tex] <----- Simplify left side
[tex]112L={V_2}[/tex] <----- Multiply both sides by 1365
Consider the tetrahedral intermediate and the two leaving groups, methoxide and amide anion. does this reaction favor reactants or products?
The reaction of tetrahedral intermediate and the two leaving groups, methoxide and amide anion favour product.
What is leaving group?A leaving group is a group of atoms or an atom which is able to break away from a molecule as a stable species or with a lone pair, breaking the bond between the molecule and itself.
What is intermediate?A stage is come before forming product. This stage is termed as transition stage and the reactant at this stage is termed as intermediate.
According to Le Châtelier's Principle, a reactions always tend towards the equilibrium, the reaction produces more products from the excess reactant, that's why it causing the system to shift to the left which allows the system to reach equilibrium.
Due to this reason, this reaction shift towards product.
Thus, we concluded that the reaction of tetrahedral intermediate and the two leaving groups, methoxide and amide anion favour product.
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The heat of fusion (δhfus) of benzene (c6h6) is 10. 0kjmol while its heat of vaporization (δhvap) is 34. 1kjmol. estimate the enthalpy of sublimation (δhsub) of benzene.
The heat of fusion (δhfus) of benzene (c6h6) is 10. 0kjmol while its heat of vaporization (δhvap) is 34. 1kjmol then enthalpy of sublimation (δhsub) of benzene is 44.1 kJ mol.
The heat of fusion is amount of heat involved during conversion of solid into liquid.
Solid → liquid
The heat of vaporization is amount of heat involved during conversion of liquid into vapor.
liquid → vapor
The enthalpy of sublimation is amount of energy involved during conversion of solid into vapor.
Solid → vapor
The enthalpy of sublimation is equal to sum of heat of fusion and heat of vaporization .
Mathematically, heat of sublimation = heat of fusion + heat of vaporization .
heat of sublimation = 10. 0 kJmol + 34. 1 kJmol. = 44.1 kJ mol
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Consider the reaction shown.
4 HCl(g) + O₂(g) → 2Cl₂(g) + 2 H₂O(g)
Calculate the number of grams of Cl2, formed when 0.125 mol HCl reacts with an excess of 0₂.
mass:
Answer:
4.43 g Cl₂
Explanation:
To find the mass of Cl₂, you need to (1) convert moles HCl to moles Cl₂ (via the mole-to-mole ratio from equation coefficients) and then (2) convert moles Cl₂ to grams (via the molar mass). It is important to arrange the conversions/ratios in a way that allows for the cancellation of units. The final answer should have 3 significant figures like the given value.
4 HCl(g) + O₂(g) -----> 2 Cl₂(g) + 2 H₂O(g)
^ ^
Molar Mass (Cl₂): 2(35.453 g/mol)
Molar Mass (Cl₂): 70.906 g/mol
0.125 moles HCl 2 moles Cl₂ 70.906 g
-------------------------- x ---------------------- x ------------------- = 4.43 g Cl₂
4 moles HCl 1 mole
Write the balanced equation for the reaction of 1 mol of naoh with 1 mol of h2po4
Answer:
3 NaOH + H₃PO₄ -----> Na₃PO₄ + 3 H₂O
Explanation:
This appears to be a double-displacement reaction. In these reactions, the cation of one compound is swapped with the cation of another. Therefore, Na⁺ (from NaOH) is swapped with H⁺ (from H₃PO₄). When constructing the new compounds, you may need to alter the amount of each ion within a particular compound to to make it neutral.
New Product #1: Na₃PO₄
----------> Na⁺ and PO₄³⁻
----------> +1 + 1 + 1 + (-3) = 0
New Product #2: H₂O (or HOH)
----------> H⁺ and OH⁻
----------> +1 + (-1) = 0
Now that you know the products, you need to balance the chemical equation. An equation is balanced when there is an equal amount of each element on both sides. These amounts can be modified by adding coefficients.
The unbalanced equation:
NaOH + H₃PO₄ -----> Na₃PO₄ + H₂O
Reactants: 1 sodium, 5 oxygen, 4 hydrogen, 1 phosphorus
Products: 3 sodium, 5 oxygen, 2 hydrogen, 1 phosphorus
The balanced equation:
3 NaOH + H₃PO₄ -----> Na₃PO₄ + 3 H₂O
Reactants: 3 sodium, 7 oxygen, 6 hydrogen, 1 phosphorus
Products: 3 sodium, 7 oxygen, 6 hydrogen, 1 phosphorus
**I was having trouble balancing the equation with the reactant H₂PO₄⁻. From my experience, I believe this compound may have been mistyped. As such, I used H₃PO₄. Please let me know if the reactant was written properly**
What do the solubility rules tell you about the way to separate the second group of cations?
The second set of cations can be separated using solubility-product constants.
The creation of a new bond between the molecules of the solute and the solvent is known as solubility. Solubility is the greatest amount of solute that can be dissolved in a known amount of solvent at a specific temperature.
The amount of oil that will dissolve in the water column at a specific temperature and pressure is known as its solubility in water. The compound's water solubility increases with increasing polarity. The high water solubility of BTEX chemicals is one reason why they are found in groundwater so frequently. The ability of a medicine to dissolve is essential to its effectiveness. A drug substance cannot be absorbed without it, which results in limited bioavailability.
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What are the three forms of water found on Earth?
Answer:
By form if you mean states then it's,
Water is found on Earth as drinking water (liquid), water vapour (gas) and ice (solid).
How might the yield of 1-bromobutane be affected if water was not added, and what product(s) would be favored?
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If only 0.500 mol of NO2(g) is placed in a 1.0 L container and the reaction is allowed to come to equilibrium, 0.186 mol of N2O4(g) is formed. Find the value of Keq.
Solve using ICE table.
The equilibrium constant of the system is 11.3.
What is the value of Keq?We know that the equilibrium constant shows the extent to which reactants are converted into products.
Now;
2NO2 ⇄ N2O4
[NO2] = 0.500 mol /1 L = 0.500 M
[N2O4] = 0.186 mol /1 L = 0.186 M
The ICE table is;
2NO2 ⇄ N2O4
I 0.5 0
C -2x +x
E 0.5 - 2x 0.186
The concentration of NO2 at equilibrium = 0.5 - 2(0.186) = 0.128
Keq = 0.186/( 0.128)^2
Keq = 11.3
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For every one nadh molecule oxidized at complex i, how many total hydrogen ions are pumped across all of the complexes from the mitochondrial matrix to the inner membrane space?.
10
For every one NADH molecule oxidized at complex i , 10 total hydrogen ions are pumped across all of the complexes from the mitochondrial matrix to the inner membrane space.
How many complexes are involved in mitochondrial electron transport?4 proteins
The oxidative phosphorylation process, also known as the electron transport chain, is a collection of four protein complexes that combine redox events to produce an electrochemical gradient that results in the production of ATP. Both photosynthesis and cellular respiration take place in mitochondria.What distinguishes Complex 1 from Complex 2 in particular?Complex I pulls four protons from the matrix into the intermembrane gap and absorbs high energy electrons from NADH. Succinate dehydrogenase is in Complex II. In the Krebs cycle, Complex II transforms succinate to fumarate and produces FADH2. Directly obtaining FADH2, Complex II provides two electrons to electron transport system..To learn more about mitochondrial matrix visit:
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If the percent yield for the following reaction is 65.0%, how many grams of KClO3 are needed to produce 8.00 g of O2?
Taking into account definition of percent yield, 31.42 grams of KClO₃ are needed to produce 8.00 g of O₂.
Reaction stoichiometryIn first place, the balanced reaction is:
2 KClO₃ → 2 KCl + 3 O₂
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
KClO₃: 2 moles KCl: 2 molesO₂: 3 molesThe molar mass of the compounds is:
KClO₃: 122.55 g/moleKCl: 74.55 g/moleO₂: 32 g/moleThen, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
KClO₃: 2 moles× 122.55 g/mole= 245.1 gramsKCl: 2 moles× 74.55 g/mole= 149.1 gramsO₂: 3 moles× 32 g/mole= 96 gramsPercent yieldThe percent yield is the ratio of the actual return to the theoretical return expressed as a percentage.
The percent yield is calculated as the experimental yield divided by the theoretical yield multiplied by 100%:
percent yield= (actual yield÷ theorical yield)×100
where the theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product, that is, it is the maximum amount of product that could be formed from the given amounts of reagents.
Percent yield for the reaction in this caseIn this case, you know:
actual yield= 8 gramstheorical yield= ?percent yield= 65%Replacing in the definition of percent yields:
65= (8 grams÷ theorical yield)×100
Solving:
theorical yield= (8 grams÷ 65)×100
theorical yield= 12.31 grams
Then, this means that you need to find the mass of KClO₃ would theoretically produce 12.31 g of O₂.
Mass of KClO₃ requiredThe following rule of three can be applied: If by reaction stoichiometry 96 grams of O₂ are produced by 245.1 grams of KClO₃, 12.31 grams of O₂ are produced by how much mass of KClO₃?
[tex]mass of KClO_{3} =\frac{12.31 grams of O_{2}x245.1 gramsof KClO_{3} }{96 grams of O_{2}}[/tex]
mass of KClO₃= 31.43 grams
Finally, 31.42 grams of KClO₃ are needed to produce 8.00 g of O₂.
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write a careful description of a metal or an alloy . Use the correct scientific terms.
Explain which properties of metals are particularly suited to the function it has. a) The name of the instrument/ things /apparatus
b) i) If you choose an alloy: please states the name of all the metals that are consisted
in that alloy
ii) If you choose a single type of metal: Please state the metal.
c) Please include explanation in no:2 The example of properties are sonorous,
malleable and so on…..
d) please include descriptions that can fit atleast 2 slides, thank you and have a great/blessing day!
Brass is an alloy of copper and zinc and is durable, malleable and sonorous.
What are alloys?Alloys are products which are obtained from a mixture of two or more metallic elements.
Alloys are preferred to the individual elements because they combine the desirable properties of their component elements.
An example of an alloy is brass.
Brass is mixture of copper and zinc. It combines the shiny and anti-rust properties of zinc with the durability and sonorous property of copper.
It very sonorous and malleable and is used in many musical instruments.
In conclusion, alloys are produced by mixing two or more metals together.
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What chemical compound do motor-neuron axon terminals release?
a. epinephrine
b. norepinephrine
c. sodium ions
d. acetylcholine
e. nicotinic acid
Option (d) acetylcholine is the right answer.
Acetylcholine is the chemical compound released by the motor-neuron axon terminals.
Acetylcholine:The parasympathetic nervous system, a portion of the autonomic nervous system (a branch of the peripheral nervous system), which contracts smooth muscles, widens blood vessels, increases body secretions, and decreases heart rate, uses acetylcholine as its primary neurotransmitter.The function of Acetylcholine: Acetylcholine is used at the neuromuscular junctions in the somatic nervous system to start motor neurons firing and control voluntary movements.Chemically speaking, acetylcholine is an organic chemical that is an ester of acetic acid and choline.
Process of acetylcholine:Choline acetyltransferase catalyzes the reaction in which acetyl coenzyme A (acetyl CoA, which is made from glucose) and choline are combined to form acetylcholine (CAT). Acetylcholine is one of the neuron's transmitters, and the existence of CAT in a neuron is clear evidence of this.To learn more about motor-neuron axon terminals visit:
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An ion of a single pure element always has an oxidation number of ________. a. 1 b. magnitude equal to its atomic number c. 0 d. none of these
The oxidation state of a pure element is always zero.
The oxidation state for a pure ion is equivalent to its ionic charge.
What is oxidation state?
The oxidation state or oxidation number, is the hypothetical charge of an atom if all of its bonds to different atoms were fully ionic. The oxidation state may be positive, negative or zero.
What are the rules to write the oxidation number?
1. The atoms in pure elements have oxidation number of ZERO.
2. The more-electronegative element in a binary molecular compound is assigned the number equal to the negative charge it would have as an anion. The less-electronegative element is assigned the number equal to the positive charge it would have as a cation.
3. Fluorine always has an oxidation number of -1 in compounds because it is the most electronegative element.
4. Oxygen is usually -2 unless in peroxides (then it is -1) or with fluorine.
5. Hydrogen has +1 in all compounds containing elements that are more electronegative than it, and is -1 in compounds with metals.
6. The algebraic sum of the oxidation numbers of all atoms in a neutral compound is zero.
7. The algebraic sum of the oxidation numbers of all atoms in a polyatomic ion is equal to the charge of the ion.
8. Although rules 1-7 apply to covalently bonded atoms, oxidation numbers can also be assigned to atoms in ionic compound. Monoatomic ions have oxidation numbers equal to their ionic charge.
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Is it possible for the entropy of both a closed system and its surroundings to decrease during the process?
Only when heat is transferred from the system to its surroundings does a closed system suffer a decrease in entropy.
Only when heat is transferred from the system to its surroundings does a closed system suffer a decrease in entropy. Every internally reversible operation in a closed system generates entropy. Entropy remains constant in an adiabatic and internally reversible process of a closed system. Isolated systems' entropy cannot diminish.
When a system is not isolated but is in contact with its surroundings, the entropy of the open system may drop, requiring a balancing rise in the entropy of the surroundings. During a process, the entropy of an isolated system constantly increases, or in the case of a reversible process, remains constant (it never decreases).
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If an atom were scaled up to the size of a sports arena, the space filled by the positive charges inside the atom (according to the work of ernest rutherford early in this century) would be:______.
If an atom were scaled up to the size of a sports arena, the space filled by the positive charges inside the atom (according to the work of ernest Rutherford early in this century) would be very small (perhaps size of the soccer ball).
A classical atoms based on Rutherford's model is doomed to collapse. An atom has highly non-uniform mass distribution in Rutherford's model.The positively charges part of the atom possess most of the mass in Rutherford's model. The positive charge and most of the mass of the atom were densely concentrated in extremely small region . This small region is called nucleus according Rutherford's model.
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The _____ is the mass of tissue lying beside the fetus that allows nutrients and oxygen to pass from the mother's blood to the baby's blood
A sizable organ that grows during pregnancy is the placenta. It is typically at the top or side of the uterine wall where it is attached. The placenta and your baby are joined by the umbilical cord. Through the placenta's filtering of the mother's blood and the umbilical cord, your baby receives oxygen, glucose, and other nutrients.
A sizable organ that grows during pregnancy is the placenta. It is typically at the top or side of the uterine wall where it is attached. The placenta and your baby are joined by the umbilical cord.
Blood from the mother filters oxygen, glucose, and other nutrients before traveling via the placenta and reaching your baby through the umbilical cord.
Blood from the mother filters oxygen, glucose, and other nutrients before traveling via the placenta and reaching your baby through the umbilical cord. Additionally, the placenta filters out elements that can be dangerous to your unborn child and eliminates waste products and carbon dioxide from your unborn child's blood.
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