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Oxygen carried in a hemoglobin molecule is bound to a/an

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Oxygen carried in a hemoglobin molecule is bound to an iron atom. 
The red blood cells contain a pigment called hemoglobin, each molecule of which binds four oxygen molecules.
This protein carries oxygen to the cells and carbon dioxide to the lungs. 
It is the iron atom that binds oxygen as the blood travels between the lungs and the tissues.

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-What is the mole fraction of Nitrogen? A. 0.056 B. 0.167 C. 0.667 D. 0.611 E. 0.733 -What is the mole fraction of carbon dioxide A. 0.056 B. 0.067 C. 0.256 D. 0.667 E. 0.757 -What is the mole fraction of Oxygen? A. 0.167 B. 0.267 C. 0.278 D. 0.467 E. 0.578

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-What is the mole fraction of Nitrogen? A. 0.056 B. 0.167 C. 0.667 D. 0.611 E. 0.733 -What is the mole fraction of carbon dioxide A. 0.056 B. 0.067 C. 0.256 D. 0.667 E. 0.757 -What is the mole fraction of Oxygen? A. 0.167 B. 0.267 C. 0.278 D. 0.467 E. 0.578

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The chemical formula of lithium carbonate is Li2CO3. Which statement below best describes the types and number of atoms of each element making up this substance? A. Two lithium atoms; one calcium atom; one oxygen atom B. One lithium atom; three carbon atoms; three oxygen atoms C. One lithium atom; one carbon atom D. Two lithium atoms; one carbon atom; three oxygen atoms

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The chemical formula of lithium carbonate is Li2CO3. Which statement below best describes the types and number of atoms of each element making up this substance? A. Two lithium atoms; one calcium atom; one oxygen atom B. One lithium atom; three carbon atoms; three oxygen atoms C. One lithium atom; one carbon atom D. Two lithium atoms; one carbon atom; three oxygen atoms

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If 5.0 liters of carbon dioxide gas are produced by the reaction below at STP, how many liters of oxygen gas were used in the reaction? 2CO (g) + O2 (g) yields 2CO2 (g) 10.0 L 7.5 L 5.0 L 2.5 L

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If 5.0 liters of carbon dioxide gas are produced by the reaction below at STP, how many liters of oxygen gas were used in the reaction? 2CO (g) + O2 (g) yields 2CO2 (g) 10.0 L 7.5 L 5.0 L 2.5 L

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What is the name is the ionic compound CaO 1 calcium oxygen 2 calcium oxide 3 calcium (I) oxide 4 calcium (II) oxide

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What is the name is the ionic compound CaO 1 calcium oxygen 2 calcium oxide 3 calcium (I) oxide 4 calcium (II) oxide

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Air tiny air sacs through which oxygen and carbon dioxide pass in the and out of the bloodstream

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Air tiny air sacs through which oxygen and carbon dioxide pass in the and out of the bloodstream

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When might an organism rely on fermentation to produce the energy it needs? In situations where oxygen is no longer available Never because it will not produce the oxygen needed Only when oxygen supplies are in abundance When the Krebs cycle will not produce the energy needed

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When might an organism rely on fermentation to produce the energy it needs? In situations where oxygen is no longer available Never because it will not produce the oxygen needed Only when oxygen supplies are in abundance When the Krebs cycle will not produce the energy needed

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The term anaerobic refers to instances when the body does not take in enough oxygen to meet the needs of an activity true or false

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The term anaerobic refers to instances when the body does not take in enough oxygen to meet the needs of an activity true or false

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Why is an ecosystem’s net primary production (NPP) lower than its gross primary production (GPP)? A.NPP reflects the loss of matter due to respiration by the primary producers. B.NPP reflects the gain of oxygen due to respiration by the primary producers. C.GPP reflects the loss of matter due to respiration by the primary producers.

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Hi. I think it would be A. Heres how NPP and GPP work:

NPP stands for net primary productivity and GPP means gross primary productivity. GPP is basically the entire amount that an ecosystem or area has. NPP is the amount minus the amount lost to the environment. You might already know that as you go up the food chain energy is lost in respiration and doesn’t get absorbed by the thing that eats it. Therefore, the NPP=GPP-lost energy. 

If you have any questions about this please comment 🙂 sorry if this was unclear at all.

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How does cellular respiration explain why animals breathe rapidly when they are running? Energy is used up while running, and cellular respiration needs oxygen to produce more energy. Energy is used up while running, and cellular respiration needs carbon dioxide to produce more energy. Glucose is used up while running, and cellular respiration needs oxygen to make glucose. Glucose is used up while running, and cellular respiration needs carbon dioxide to make glucose.

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Answer is: Energy is used up while running, and cellular respiration needs oxygen to produce more energy.

Cellular respiration creates an energy molecule when glucose is broken down.

Balanced chemical reaction for cellular respiration (convert biochemical energy):  

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy, or:

glucose + oxygen → carbon dioxide + water + energy .

Carbon dioxide and water are released during cellular respiration.

This reaction is exothermic (energy is released).

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How many moles of oxygen are in 52.5 grams of oxygen gas?

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An oxygen gas is a diatomic molecule which means that each molecule is composed of 2 atoms. Its symbol is O2. 

Each oxygen atom has a molar mass of 16 g/mol. The molar mass of oxygen gas is calculated below,
                         molar mass = 2 x (16 g/mol) = 32 g/mol

To determine the number of moles in 52.5 grams of oxygen, divide the given mass by the calculated molar mass.
 
                                 n = 52.5 grams / (32 gram/ mol)
                                     n = 1.64 moles

Thus, there are 1.64 moles of oxygen gas. 

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If 1 g of hydrogen combines completely with 8 g of oxygen to form water, how many grams of hydrogen does it take to combine completely with 64 g of oxygen?

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The balanced chemical reaction would be:

2H2 + O2 = 2H2O

We are given the amount of oxygen to react with hydrogen. To determine the amount of hydrogen needed for the oxygen to completely react, we use the balanced reaction to relate the substances. We do as follows:

64 g O2 ( 1 mol / 32 g ) ( 2 mol H2 / 1 mol O2 ) ( 2.02 g / 1 mol ) = 8.08 g of hydrogen gas needed

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An oxygen bottle containing a fixed volume of o2 gas has a pressure of 800.00 mm hg and a temperature of 295k. if the bottle is heated to 328k what will the pressure of o2 gas be within the bottle and which law will you use to solve it?

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The equation for how temperature changes the resistance R is: 

R=R₀(1+α(T-T₀)), where R₀ is the resistance at T₀=20°C, T is the temperature for which we want to calculate the resistance and α is the temperature coefficient for resistance. 

The resistance of the copper wire increases by 18% or by 0.18, so the new value for the resistance is R=1.18*R₀.

T₀=20°C
=0.0068
R=1.18*R₀

Now we need to input that into the equation for resistance change and solve for temperature T.  

1.18R₀=R₀(1+α(T-20)), R₀ cancels out,

1.18=1+α(T-20),

1.18-1=α(T-20), we divide by α,

0.18/α=T-20, we put 20 on the left side,

26.47+20=T

T=46.47°C

So the temperature on which the resistance of copper wire will increase by 18% is T=46.47°C. 

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Determine the empirical formula for a compound that is 70.79% carbon, 8.91% hydrogen, 4.59% nitrogen, and 15.72% oxygen.

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Determine the empirical formula for a compound that is 70.79% carbon, 8.91% hydrogen, 4.59% nitrogen, and 15.72% oxygen.

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If the mass of one mole of hydrogen is 1.01 grams; phosphorus, 30.97 grams; and oxygen, 16.0 grams, what is the molar mass of phosphoric acid (H3PO4)?

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The balanced chemical reaction is as shown below,

                 N₂ + 3H₂  –> 2NH₃

The equation shows that every 3 moles of hydrogen, H2, there would be 2 moles of ammonia, NH3, that is going to be formed. Using this concept, we solve for the unknown in this item. 

Since we are restricted only of the number of hydrogen, it becomes our limiting reactant. 

          (6 moles H2) x (2 moles NH3/3 moles H2) = 4 moles NH3

Therefore, given enough amount of N2, the amount of NH3 that can be formed out of the 6 moles of H2 is equal to 4 moles. 

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The cell membrane of a red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Since other substances are blocked from coming in, this is membrane is called: A) perforated B) semi-permeable C) non-conductive D) permeable

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Correct answer: C). Genetically different haploid cells

Meiosis is a type of cell division in which four haploid cells are produced, which are genetically different from the parent. It reduces the chromosome number exactly half as contained in the parent. That is why it is called as a reductional division.

In the first round of meiosis I homologous pairs of chromosome separate and the sister chromatids separate during meiosis II.

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A type of exercise that is done at a pace that uses oxygen faster that the body can replenish it

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Individuals eliminate alcohol from their bodies at an approximate rate of .015 BAL per hour. Correct answer: C Once alcohol has entered your bloodstream, your body will begin to metabolize it at a rate of 20 milligrams per deciliter (mg/dL) per hour. Despite the fact that alcohol is metabolized at a constant rate, some people may feel the effects of alcohol for longer amounts of time. The reason is because BAL is affected by several factors, like age, weight, medications…

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6. A substance that enters Earth's cycles and does harm to living things is A. oxygen. B. hydrogen. C. freshwater. D. a pollutant.

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6. A substance that enters Earth’s cycles and does harm to living things is A. oxygen. B. hydrogen. C. freshwater. D. a pollutant.

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If 38.7 grams of lithium chlorate decomposes, how many grams of oxygen gas can be produced? 2LiClO3 → 2LiCl + 3O2 41.1 g O2 20.6 g O2 9.13 g O2 6.85 g O2

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If 38.7 grams of lithium chlorate decomposes, how many grams of oxygen gas can be produced? 2LiClO3 → 2LiCl + 3O2 41.1 g O2 20.6 g O2 9.13 g O2 6.85 g O2

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A 30-year-old male presents with acute shortness of breath, widespread hives, and facial swelling. he denies any past medical history and takes no medications. during your assessment, you hear wheezing over all the lung fields. his blood pressure is 90/50 mm hg and his heart rate is 110 beats/min. in addition to giving him high-flow oxygen, the most important treatment for this patient is:

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1. The answer is “C”.

“Identical twins” who have been raised apart are typically more similar in intelligence level than biological siblings raised together because they have been born with the same genetic code.

Identical twins originate from a single fertilized egg that parts into two. Before it parts, it is either male or female. After it parts, there are either two guys or two females. The two sections of the fertilized egg embed in the uterus and every create one of the twins.  

Identical twins have the equivalent hereditary source. No immediate reason for monozygotic twinning has been resolved; it isn’t innate. Monozygotic twins speak to around 33% all things considered. They may look strikingly comparative, and it might be hard to reveal to them separated.

2. The answer is “A”.

Lawrence Kohlberg felt that one of the only ways individuals will accomplish the objectives in each of his six stages was to participate in “consensus democracy” in small group settings.

Lawrence Kohlberg felt that the best way to support development through these stages was by discourse of good problems and by investment in consensus democracy inside small groups. Consensus democracy was rule by understanding of the gathering, not larger part rule. This would invigorate and widen the reasoning of youngsters and grown-ups, enabling them to advance starting with one phase then onto the next.

3. The answer is “D.  showing a learner how to correct common mistakes”.

The term scaffolding alludes to a procedure in which instructors display or exhibit how to take care of an issue, and afterward venture back, offering support as required. Analyst and instructional architect Jerome Bruner first utilized the term ‘scaffolding’ in this setting, harking back to the 1960s. The hypothesis is that when understudies are given the help they require while discovering some new information, they stand a superior possibility of utilizing that learning freely. Bruner suggests positive association and three methods of portrayal amid educating: activities, pictures, and dialect.  

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(a) How much negative charge is on each oxygen of the carbonate ion?

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(a) How much negative charge is on each oxygen of the carbonate ion?

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A substance contains 35.0 g nitrogen, 5.05 g hydrogen, and 60.0 g of oxygen. how many grams of hydrogen are there in a 153-g sample of this substance

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0.300 M IKI represents the
concentration which is in molarity of a potassium iodide solution. This means
that for every liter of solution there are 0.300 moles of potassium iodide. Knowing
that molarity is a ratio of solute to solution.

By using a conversion factor:

100 ml x (1L / 1000 mL) x (0.300
mol Kl / 1 L) x (166.0g / 1 mol Kl) = 4.98 g

Therefore, in the first
conversion by simply converting the unit of volume to liter, Molarity is in L
where the volume is in liters. The next step is converted in moles from volume
by using molarity as a conversion factor which is similar to how density can be
used to convert between volume and mass. After converting to moles it is simply
used as molar mass of Kl which is obtained from periodic table to convert from
mole to grams.

In order to get the grams of IKI
to create a 100 mL solution of 0.600 M IKI, use the same formula as above:

100 ml x (1L / 1000 mL) x (0.600
mol Kl / 1 L) x (166.0g / 1 mol Kl) = 9.96 g

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A(n) ______ reduces the pressure of compressed oxygen inside the oxygen cylinder to a level more appropriate for patient care.

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1. The answer is “C”.

“Identical twins” who have been raised apart are typically more similar in intelligence level than biological siblings raised together because they have been born with the same genetic code.

Identical twins originate from a single fertilized egg that parts into two. Before it parts, it is either male or female. After it parts, there are either two guys or two females. The two sections of the fertilized egg embed in the uterus and every create one of the twins.  

Identical twins have the equivalent hereditary source. No immediate reason for monozygotic twinning has been resolved; it isn’t innate. Monozygotic twins speak to around 33% all things considered. They may look strikingly comparative, and it might be hard to reveal to them separated.

2. The answer is “A”.

Lawrence Kohlberg felt that one of the only ways individuals will accomplish the objectives in each of his six stages was to participate in “consensus democracy” in small group settings.

Lawrence Kohlberg felt that the best way to support development through these stages was by discourse of good problems and by investment in consensus democracy inside small groups. Consensus democracy was rule by understanding of the gathering, not larger part rule. This would invigorate and widen the reasoning of youngsters and grown-ups, enabling them to advance starting with one phase then onto the next.

3. The answer is “D.  showing a learner how to correct common mistakes”.

The term scaffolding alludes to a procedure in which instructors display or exhibit how to take care of an issue, and afterward venture back, offering support as required. Analyst and instructional architect Jerome Bruner first utilized the term ‘scaffolding’ in this setting, harking back to the 1960s. The hypothesis is that when understudies are given the help they require while discovering some new information, they stand a superior possibility of utilizing that learning freely. Bruner suggests positive association and three methods of portrayal amid educating: activities, pictures, and dialect.  

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Abnormally curved fingernails and stunted growth of the fingers associated with a chronic lack of oxygen in patients with cystic fibrosis is known as:

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Chronic sore throat, kidney problems, dehydration, gastrointestinal problems, and dental problems are complications commonly experienced by individuals who suffer from bulimia nervosa. It is an eating disorder that is characterized by repeated binge eating and compensatory behaviors like vomiting, fasting, excess exercise and inappropriate use of drugs for weight control. People who has this are obsessed with body weight and shape. Signs of a person having this disorder are rapid changes in weight, bloated, always tired, irregular menstrual period, constipated and many more. There are a number of risks that is associated with this disorder which includes ulcers, osteoporosis, chronic indigestion and risk of infertility.

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A scientist adds heat to each of the following substances. Which will probably absorb the most heat before its temperature changes significantly? 50 g of solid copper 50 g of solid iron 50 g of liquid water 50 g of sand Question 2(Multiple Choice Worth 2 points) A drop of water placed on a smooth, dry surface will form a dome-shaped droplet instead of flowing outward in different directions. Which of these best explains this observation? The bonds between hydrogen and oxygen atoms are very strong. The electrons in the atoms attract the electrons in the other atoms. Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid. Water molecules near the surface produce more buoyant force than water molecules within the liquid. Question 3(Multiple Choice Worth 2 points) Which of these best explains what happens when the ionic substance calcium chloride (CaCl2) dissolves in water? The oxygen atoms in the water molecules are attracted to the Ca2+ ions. The oxygen atoms in the water molecules are attracted to the Cl− ions. The hydrogen atoms in the water molecules are attracted to the Ca2+ ions. The oxygen atoms in the water molecules are attracted to the H+ ions. Question 4(Multiple Choice Worth 2 points) Which of these statements about water is true? Its atoms share electrons equally. It can dissolve all known substances. Its molecules are farther apart in the solid state than in the liquid state. It has a lower specific heat than nearly all known metals.

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The gravitational force Fg between two objects is given by the equation:

Fg=(G*m₁*m₂)/r₂, where G=6.67*10^-11 m³ kg⁻¹ s⁻² is the gravitational constant, m₁ and m₂ are the masses of the two bodies and r is the distance between those bodies. 

Due to the gravitational attraction the pencil and the eraser will attract if we there is no friction on the surface. 

m₁=10 g=0.01 kg is the mass of the pencil
m₂=20 g=0.02 kg is the mass of the eraser
r=2.5 cm = 0.025 m

First we calculate the Fg:

Fg={(6.67*10^-11)*0.01*0.02}/(0.025²)=2.1344*10^-11 N

To get the velocity v of the pencil:

v²=2as, where a is the acceleration of the pencil and s is the path. In our case s=r so we can write:

v²=2ar

a=Fg/m₁= 2.133*10^-9 m/s²

v²=2*(2.133*10^-9)*0.025=1.0665*10^-10

v=√(1.0665*10^-10)=1.0327*10^-5 m/s

We have the velocity and the acceleration, so we can calculate the time t with the equation:

t=v/a=(1.0327*10^-5)/(2.133*10^-9)=4841.6 s

1 hour has 3600 s so when we divide time t in seconds by 3600 we get time T in hours:

T=t/3600=4841.6/3600=1.3449 h. 

So the time for the pencil and eraser to touch is T=1.3449 hours. 

Also time T can be expressed like T= 1h and 20 mins and 41.64 s

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