If four molecules of carbon dioxide enter the Calvin cycle (four "turns" of the cycle), how many G3P molecules are produced and how many are exported? a. 4 G3P made, 1 G3P exported b. 4 G3P made, 2 G3P exported c. 8 G3P made, 1 G3P exported d. 8 G3P made, 4 G3P exported

Answer:

String a piece of twine between the cups. Use a long piece of string to help the sound travel farther. Tie a knot in the end of the string to keep it in the cup. Decorate the cups if desired. One person can hold the phone up to their ear and the other person can talk into the other cup. Keep the string tight or the sound waves won’t travel.

Explanation:

132 gm of CO₂ is generated by combustion of 342 gm of C₈H₁₈.

The molar mass of a chemical compound is defined as the ratio between the mass and the amount of that substance in any sample. A material's molar mass is a bulk characteristic rather than a molecular one.

The molar mass of a substance is its mass expressed in grams per mole. G/mol, or grams per mole, is the sign for molar mass. The ratio between the mass of an isotope and the mass of the isotope carbon is known as the isotopic atomic mass, or mass of a single isotope of any particular element. -12

The reaction is :

C₈H₁₈ + 12.5O₂ ----> 8CO₂ + 9H₂O

Molar mass of C₈H₁₈ is = 12*8 + 18*1 = 114 gm

Molar mass of CO₂ is = 12+ 16*2 = 44gm

44gm of CO₂ is generated by 114 gm of C₈H₁₈

1 gm of CO₂ is generated by 114/44 gm of C₈H₁₈

132 gm of CO₂ is generated by combustion of 114*132/44 = 342 gm of C₈H₁₈

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Answer:helium or the noble gases

Explanation: The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest ionizing energy

Answer:

because it is a sign that there are more producers for the consumers.

Explanation:

An ecosystem consist of the abiotic or inorganic components, the animals[consumers], the plants[producers] and the decomposers. An ecosystem simply means the environment of organisms that are living together and the way these organisms interact with another.

The producers that is the plants are the ones manufacturing food by themselves either by photosynthesis or chemosynthesis and the consumers are the ones relying on the producers for food.

The ecosystem is still healthy even when there's still a lot of consumers in it because it shows that there are come producers that is to say the producers are more also. If this is not the case, then the ecosystem will not be healthy as the consumers will eat the producers until the producers will not be enough.

Answer:The fuel/air mixture may become too minimal

Explanation:While cruising at 9,500 feet MSL, the fuel/air mixture is properly adjusted. What will occur if a descent to 4,500 feet MSL is made without readjusting the mixture

Answer:

8g/mL

Explanation:

Density = Mass/Volume

There is 5.6g of Iron added to the water of 23.60mL and it rose by 0.7mL.

Density = 5.6g/0.7mL of Iron.

The given statement "Diffusion that is assisted by a channel protein or a carrier protein is called facilitated diffusion" is true because there is involvement of channel proteins.

Facilitated diffusion is a type of diffusion that involves the assistance of a channel protein or carrier protein to move molecules across the membrane. A channel protein creates a pore or channel in the membrane through which the molecules can move, while a carrier protein changes its shape to transport the molecules across the membrane. These proteins are selective and allow only specific molecules to pass through, depending on their size and charge.

Facilitated diffusion differs from simple diffusion in that it requires the help of proteins to move molecules across the membrane. In simple diffusion, molecules move down their concentration gradient without the need for any assistance. This means that facilitated diffusion can move molecules from areas of low concentration to areas of high concentration, which is the opposite of the direction of simple diffusion.

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You are using an experimental spectrophotometer. If a detector reading is 45158 (in some unit) for a blank tube and 4119 for your riboflavin sample. Then, the absorbance of the riboflavin sample is 1.30.

Riboflavin, also known as vitamin B2, is a vitamin found in foods and sold as a dietary supplement. Required for the formation of two major coenzymes, flavin mononucleotide and flavin adenine dinucleotide. These coenzymes are involved in energy metabolism, cellular respiration and antibody production, and normal growth and development. Coenzymes are also required for the metabolism of niacin, vitamin B6, and folic acid. Riboflavin is prescribed to treat corneal thinning, and oral administration can reduce the frequency of migraines in adults.

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Answer:

The absorbance of the riboflavin sample is 0.898 AU, which is calculated by subtracting the blank tube reading (45158) from the riboflavin sample reading (4119) and dividing by 45158.

Answer:

a. the 3 represents the principal energy level

Explanation:

3 is the principal energy level. The p is the sublevel. 4 is the possible occupying electron.

We call water a universal solvent because it can dissolve many different substances.

Water acts as a solvent due to the polarity of each water molecule. Water molecules have a polar arrangement of oxygen and hydrogen atoms i.e. one side (hydrogen) of each water (H2O) has a slight positive electrical charge and the other side (oxygen) had a slight negative charge.

A substance that displaces most compounds is known as a universal solvent. Because it dissolves more chemicals than any other solvent, water is known as the universal solvent. But no solvent, not even water, can dissolve all chemicals. Like typically dissolves like. This indicates that polar compounds, such salts, are dissolved by polar liquids. Nonpolar solvents can dissolve organic molecules like lipids and other nonpolar substances.

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Answer:

D. Because it can dissolve many different substances.

Explanation:

Answer:

Ka = 9.2x10⁻⁷

Explanation:

The equilibrium of carbonic acid in water is:

H₂CO₃ ⇄ HCO₃⁻ + H⁺

Where Ka is defined as:

Ka = [HCO₃⁻] [H⁺] / [H₂CO₃]

The equilibrium concentration of the species is:

[H₂CO₃] = 1.9x10⁻² - X

[HCO₃⁻] = X

[H⁺] = X

As pH is -log[H⁺]

3.88 = -log[H⁺]

1.318x10⁻⁴ = [H⁺] = X

Replacing:

[H₂CO₃] = 1.9x10⁻² - 1.318x10⁻⁴ = 1.8868x10⁻²

[HCO₃⁻] = 1.318x10⁻⁴

[H⁺] = 1.318x10⁻⁴

Replacing in ka equation:

Ka = [1.318x10⁻⁴] [1.318x10⁻⁴] / [1.8868x10⁻²]

Answer: 9.2 x 10^-7

Explanation:

Answer:

since you only need 11 grams of propane to produce 36 grams of water you can divide 273.6 by 36. This gives us 7.6 which would be our "unit rate". We can then multiply 7.6 by 11 grams, which gives us 83.6.

So the answer is 83.6 moles of propane.

I hope this answers your question(s). Have a good weekend!

Answer:

A.Scientists use genes to explain why evolution happens.

Explanation:

:)

The volumes of N₂ gas and H₂ gas required to form 28.5 grams of N₂H₄ at 30oC and 1.50 atm are 14.3 L and 28.6 L, respectively.

To determine the volumes of N₂ gas and H₂ gas required to form 28.5 grams of N₂H₄ at 30oC and 1.50 atm, we need to use the ideal gas law to calculate the number of moles of each gas needed, and then use the balanced chemical equation to determine the volume of each gas.

Calculate the number of moles of N₂H₄

The molar mass of N₂H₄ is:

Molar mass N₂H₄ = 2 x molar mass N + 4 x molar mass H

Molar mass N₂H₄ = 2 x 14.01 g/mol + 4 x 1.01 g/mol

Molar mass N₂H₄ = 32.05 g/mol

The number of moles of N₂H₄ can be calculated as follows:

n(N₂H₄) = mass / molar mass

n(N₂H₄) = 28.5 g / 32.05 g/mol

n(N₂H₄) = 0.890 mol

Determine the number of moles of N₂ and H₂ required

From the balanced chemical equation, we see that 1 mole of N₂ reacts with 2 moles of H₂ to produce 1 mole of N₂H₄. Therefore, the number of moles of N₂ and H₂ required can be calculated as follows:

n(N₂) = n(N₂H₄) = 0.890 mol

n(H₂) = 2 x n(N₂H₄) = 1.780 mol

Use the ideal gas law to calculate the volumes of N2 and H2

The ideal gas law is given by:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant (0.0821 L atm/mol K), and T is the temperature in Kelvin.

We are given P = 1.50 atm and T = 30oC = 303 K.

For N₂ gas:

n(N₂) = 0.890 mol

R = 0.0821 L atm/mol K

T = 303 K

P = 1.50 atm

Solving for V, we get:

V(N₂) = n(N₂)RT/P

V(N₂) = 0.890 mol x 0.0821 L atm/mol K x 303 K / 1.50 atm

V(N₂) = 14.3 L

For H₂ gas:

n(H₂) = 1.780 mol

R = 0.0821 L atm/mol K

T = 303 K

P = 1.50 atm

Solving for V, we get:

V(H₂) = n(H₂)RT/P

V(H₂) = 1.780 mol x 0.0821 L atm/mol K x 303 K / 1.50 atm

V(H₂) = 28.6 L

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your answer will be Carbon

I just got help from a friend!

Percent yield is a measure of the efficiency of a chemical reaction and is defined as the ratio of the actual yield of the product obtained in the reaction to the theoretical yield of the product that could be obtained based on stoichiometry, multiplied by 100.

Percent yield is expressed as a percentage, and it is a measure of how much of the reactants were actually converted into the desired product. In a perfect reaction, all of the reactants would be converted into the desired product, and the actual yield would be equal to the theoretical yield. In this case, the percent yield would be 100%.

However, in practice, it is not always possible to achieve a 100% yield due to various factors such as incomplete reactions, side reactions, loss of product during isolation, or impurities in the starting materials. Therefore, percent yield values below 100% are common and are often used to evaluate the effectiveness of a reaction.

The actual yield, on the other hand, is the amount of product that is actually obtained from the reaction. Therefore, by definition, the percent yield cannot be greater than 100%.

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Answer:D. Ratio of oxygen/nitrogen

Explanation: the ratio will never change no matter the air pressure!

The number of molecules in 10.0 gram of NaOH is 15 * 10²².

To solve this question, we need to understand some terms of mole concept,

Mole - It is the amount of substance containing same number of molecules or atoms as there are atoms in 12 gram of carbon-12 isotope.

Molecules - It is group of atoms bonded together, representing the smallest fundamental unit of a chemical compound taking part in chemical reaction.

Molecular weight - The sum of atomic masses of all atoms in molecules.

Avogadro number - It is the number of atoms, ions, electrons, molecules in one mole of substance. It is represented as NA.

NA = 6.0 * 10²³ (approx)

To calculate the number of molecules, we apply the formulae,

no. of molecules = moles * NA

moles = weight / molecular weight

moles = 10.0 / 40

          = 0.25

Substituting this value to calculate number of molecules,

no. of molecules = 0.25 * 6.0 * 10²³

                            = 15 * 10²²

Therefore the number of molecules of in 10.0 g of NaOH is 15 * 10²².

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Answer:

This took forever T-T

Explanation:

1. The condition of the soil has a big impact on the environment. Good soil helps plants grow, supports different kinds of life, and prevents erosion. It also keeps nutrients in balance and affects the quality of water and air. If the soil is unhealthy or polluted, it can harm plants, animals, and the overall ecosystem.

2. The dodo bird is an example of a species that no longer exists. It used to live on an island called Mauritius. Sadly, people hunted the dodo bird for food and destroyed its habitat. They also introduced other animals that harmed the dodo bird's population. Because of these reasons, the dodo bird became extinct. This affected the environment because the dodo bird played a role in spreading seeds and helping plants grow.

3. The Sumatran orangutan is a species in danger of disappearing. Its biggest threats are losing its home due to forests being cut down for palm oil, illegal hunting, and being taken as pets. People are working to protect the orangutans by preserving their habitat, rescuing and rehabilitating them, and educating communities about their importance.

4. Central Park in New York City is a natural area created in 1857. It was made for people to enjoy nature in the middle of the city. People can do many outdoor activities there like walking, picnicking, and playing sports. The park is also home to various birds and animals, which adds to the city's biodiversity.

5. When a certain environment, like a forest or a desert, is damaged or in danger, it has a big impact on the whole ecosystem. Many different plants and animals depend on each other in these environments. If something harms or destroys their homes, it can lead to the loss of species, disruption of food chains, and less diversity. It can also affect important processes like water and carbon cycles, and even influence the climate. People who rely on these environments for resources and livelihoods are also affected. That's why it's important to protect and take care of these natural areas.

No, the observation of an 80.00% mass percentage of carbon in an impure sample of the same hydrocarbon is not consistent with an impurity that contains no carbon.

Since the impure sample of the hydrocarbon is found to have a mass percentage of carbon of 80.00%, it indicates that carbon is a major component of the sample. The high percentage suggests that the impurity is not solely responsible for the carbon content in the sample. If the impurity contained no carbon, the mass percentage of carbon in the sample would be significantly lower.

The observed high carbon content suggests that the impurity, if present, is likely to contribute to the carbon content of the sample. It could be a different compound or a carbon-containing impurity mixed with the hydrocarbon. The presence of carbon in the impure sample could arise from various sources such as incomplete purification, contamination during handling, or the inherent composition of the original hydrocarbon source.

To determine the exact nature of the impurity and its contribution to the carbon content, further analysis and characterization techniques would be required. These may include spectroscopic methods, elemental analysis, or chromatographic techniques to identify and quantify the impurity components.

In summary, the high mass percentage of carbon in the impure sample suggests that the impurity itself is likely to contain carbon, indicating that the observation is not consistent with an impurity that contains no carbon.

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Answer:

Ok so the earth layers are

Crust, the surface of the earth

Mantle, where the lava usually comes from or how volcanos form due to the tectonic plates moving

outer core

inner core is the hottest

if you are asking for the compositional and mechanical layers that would be

Crust, mantle, core, Lithosphere, Asthenoshpere, Mesosphere, out core, and inner core

Mechanical: Lithosphere, Asthenosphere, mesosphere, outer and inner core

Compostional: Crust, Mantle, and core

There must have been 0.10mol of \(C_{2} H_{2} O\) in the container at the beginning.

 \(C_{2} H_{2} O\) + \(2O_{2}\) = \(2CO_{2}\) + \(H_{2} O\)

The above reaction makes it quite evident that 1 mol of \(C_{2} H_{2} O\) combines to create 2 mol of \(CO_{2}\) and \(O_{2}\) is given in excess that \(C_{2} H_{2} O\) alone controls a product's formation. Therefore, here, O is an excess reactant and \(C_{2} H_{2} O\) is a limiting reactant.

It takes 6 times as much \(C_{2} H_{2} O\) to produce 1 mol of \(CO_{2}\) from 0.05 mol of \(C_{2} H_{2} O\).

Now, 0.6 divided by 6 mol of reactant is required for 0.60 moles of \(CO_{2}\)to produce, which translates to

moles of \(C_{2} H_{2} O\) = 0.6/6 = 0.1 mol .

Therefore, \(C_{2} H_{2} O\) must have been present in the container in an initial concentration of 0.10mol.

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Answer:

i think you mean what is the kingdom of plants, but its "Kingdom Plantae".

Kingdom Plantae traits: eukaryotic/have nucleus, multicellular and autotrophic. (they photosynthesis)

2nd largest kingdom

Answer:

Introduction: All the plants are placed in the Kingdom- Plantae, according to the five-kingdom classification by R.H. Whittaker. The Kingdom- Plantae consists of multicellular plants with eukaryotic organization and chlorophyllous cells.

Explanation:

What is the kingdom for plants called?

What are the 3 plant kingdoms?

Kingdom Plantae Organisms

Ferns: They fall under the division Pteridophyta and are known to have vascular tissue. ...

Mosses: They fall under the division Bryophyta and have no vascular system. ...

Cone-bearing plants: They fall under the division Spermatophyta, sub-division gymnosperms

Approximately 777.6 grams of water is needed to make 7.2 moles of glucose based on the balanced equation.

The balanced equation provided is:

6CO2 + 6H2O -> C6H12O6 + 6O2

From the equation, we can see that for every 6 moles of water (H2O), 1 mole of glucose (C6H12O6) is produced. Therefore, we need to determine the amount of water required to produce 7.2 moles of glucose.

The mole ratio between water and glucose is 6:1. This means that for every 6 moles of water, we obtain 1 mole of glucose. To find the amount of water needed for 7.2 moles of glucose, we set up a proportion using the mole ratio:

(6 moles H2O / 1 mole glucose) = (x moles H2O / 7.2 moles glucose)

Solving for x, we can cross-multiply:

6 moles H2O * 7.2 moles glucose = x moles H2O * 1 mole glucose

43.2 moles H2O = x moles H2O

Therefore, we need 43.2 moles of water to produce 7.2 moles of glucose.

To convert moles of water to grams, we need to know the molar mass of water, which is approximately 18 g/mol. Using the molar mass, we can calculate the mass of water needed:

Mass of water = moles of water * molar mass of water

Mass of water = 43.2 moles * 18 g/mol

Mass of water = 777.6 g

Therefore, approximately 777.6 grams of water is needed to make 7.2 moles of glucose based on the balanced equation.

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Answer:

electric charges.

Explanation:

Conduction involves the transfer of electric charge or thermal energy due to the movement of particles. When the conduction relates to electric charge, it is known as electrical conduction.

An electron can be defined as subatomic particles that are negatively charged and as such has a magnitude of -1.

An electric current is produced when electric charges (electrons) move continuously and it's measured in Amperes through the use of an ammeter.

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

\( V = IR\)

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

The mass of NO2 produced by the reaction is 24.61g when the initial mass of 16.07g NO, an excess of O2 is converted to product NO2.

Given the chemical reaction: 2NO(g) + O2(g) + 2NO2(g)

The equation is balanced.

The initial mass of NO is (m) = 16.07g

Here first we calculate the number of moles of NO is used = mass/Molar mass of NO

moles of NO used = 16.07/30 = 0.535

An excess of O2 is used so we can neglect that.

Now calculate the moles of NO2 produced.

moles of NO2 =  0.535 x 2 mol(NO2) / 2mol(NO) =  0.535

we can determine that NO is the limiting reactant.

To convert from moles to mass, use the product's molar masses.

Molar mass of NO2 = 46g/mole

Then the mass of NO2 produced = 0.535 x 46 x 1 = 24.61g

Hence the mass of NO2 produced by the reaction is 24.61g

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Dilution of the solution can be calculated by the formula of the molarity and volume. The initial volume of 2.50 M solution was 30 mL.

Molar concentration or the dilution factor is in an inverse relationship and with an increase in the dilution, the molarity of the solution decreases.

Given,

Initial molarity = 2.50 M

initial volume = ?

Final molarity = 0.750 M

Final volume = 100.0 ml

Substituting values in the formula:

\(\begin{aligned}\rm V_{1} &= \rm \dfrac{M_{2}V_{2}}{M_{1}}\\\\&= \dfrac{0.750 \times 100}{2.50}\\\\&= 30 \;\rm mL\end{aligned}\)

Therefore, 30 mL was the initial volume of the solution before it was diluted.

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The atomic mass of M is 95.94 g/mol, and M is Barium (Ba) regarding a 1.42 g sample of a pure compound, with formula m2so4.

The balanced chemical equation for the reaction between M2SO4 and CaCl2 is:

From the equation, we can see that 1 mole of M2SO4 reacts with 1 mole of CaSO4, so the number of moles of M2SO4 in the original sample is equal to the number of moles of CaSO4 precipitated:

The molar mass of M2SO4 can be calculated using the mass of the sample and the number of moles:

Since the formula for M2SO4 contains two M atoms, the atomic mass of M is half of the molar mass of M2SO4:

Looking at the periodic table, the only element with an atomic mass close to 71 g/mol is Barium (Ba). Therefore, M is Barium (Ba).

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The volume of carbon dioxide produced, when 32 g of methane burn completely in oxygen at room temperature and pressure, is approximately 49.6 dm³.

After balancing  chemical reaction for methane combustion, the  equation becomes

CH₄ + 2O₂ → CO₂ + 2H₂O

This equation shows that for every one mole of methane that reacts, one mole of carbon dioxide is produced.

First, we need to determine the number of moles of methane in 32 g of the compound.

Methane's molar mass is 16.04 g/mol, therefore:

32 g / 16.04 g/mol = 1.995 mol

This means that 1.995 mol of methane will react with oxygen to produce 1.995 mol of carbon dioxide.

Next, we can use the ideal gas law to calculate the volume of carbon dioxide

produced. At room temperature and pressure (which is typically taken to be 25°C and 1 atm), the ideal gas law can be written as:

PV = n*R*T

Where, pressure= P, V= volume, n= number of moles, R= gas constant, T= temperature.

Since we know that 1.995 mol of carbon dioxide is produced, we can plug in the values for n and T (in Kelvin, so T = 298 K) and solve for V:

V = (n*R*T)/P

= ((1.995 mol)*(0.0821 L•atm/mol•K)*(298 K))/(1 atm) ≈ 49.6 L

However, the question asks for the volume in dm3, which is the same as  liters.

Therefore, the volume of carbon dioxide produced is approximately 49.6 dm³.

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When Mendeleev developed his periodic table, he placed the greatest emphasis on organizing the elements based on their chemical properties and atomic weights.

Mendeleev developed the first periodic table of the elements based on the periodicity observed in the chemical properties and atomic weights of the elements. He placed the greatest emphasis on organizing the elements based on their chemical properties and atomic weights.

Mendeleev arranged the elements in horizontal rows called periods and vertical columns called groups. He arranged the elements in the order of increasing atomic weights and grouped them according to their chemical properties.He also left gaps in his table for elements that were yet to be discovered. He made predictions of the properties of the undiscovered elements based on the properties of the elements in the same group or period as the gaps.

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