which of the following is a product of the light reactions of photosynthesis? view available hint(s)for part a which of the following is a product of the light reactions of photosynthesis? glyceraldehyde-3-phosphate high-energy photons water and co2 nadp and rubp oxygen, atp, and nadph

Answer:

yftcwertyuiokjbvchff

Explanation:

The elements with 8 electrons in an outer 'd' subshell belong to Group 8. Therefore, option C is correct.

In periodic table there is an arrangement of chemical element which are arranging in row and column called as group and period. This arrangement of an chemical element is according to their atomic number.

It is known as the periodic table because of the way the elements are arranged. It is widely used in chemistry, physics, and other sciences.

The elements are listed on the periodic table in order from lightest, or smallest, to heaviest, or biggest. The number in the table denotes this number of protons. The elements with 8 electrons in an outer 'd' subshell belong to Group 8.

Thus, option C is correct.

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Answer:

protons, neutrons, negatively, electrons

Explanation:

protons are positive, neutrons are neutral. the entire basis of bonding is chemistry is the distribution of electrons, which are negatively charged particles surrounding the nucleus.

To round the number first we will take into account that the first digit after the decimal represents the tenths place. When a number is greater than 5 we must add 1 to the previous figure to round it, if it is less than 5 we will leave the figure with the same value. Let's see how the rounded number would look:

So, the number rounded to the tenths position will be 62.5

They cannot be divided and still keep the properties of the element; option D.

The elephant have the greatest mass; option A

Atoms are the smallest particle of an element that can take part in a chemical reaction.

Atoms of the same element have the same atomic number or the same number of protons.

Atoms of elements cannot be divided and still keep the properties of the element.

The atoms of calcium, gold, argon, iodine will have the following features in common: they cannot be divided and still keep the properties of the element; option D.

Mass of a substance is the amount of matter present in that substance.

The elephant will have the greatest mass of the other animals.

In conclusion, atoms are the smallest particle of a substance that can take part in a reaction.

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Answer:

1st answer clearance of hormones

the 2nd question im not sure but it take 4 weeks

Explanation:

Answer and Explanation:

In H2O molecules, due to formation of intermolecular hydrogen bonds, there is molecular association. Large amount of energy is required to break these intermolecular hydrogen bonds. Intermolecular hydrogen bonding is not possible in H2S. Hence, its boiling point is lower and is a gas.

Answer:

D)

Explanation:

CH4 + 2O2 = CO2 + 2H2O

1 (L CO2)= 32.5(L CO2)

1 (CH4) = 32.5 (L CH4)

The state of Matter in which the  Forces of Attraction is the Weakest is the gaseous state.

The forces of attraction that depends on the intermolecular attractions or the repulsions. The intermolecular repulsions are greater in the gaseous state than the intermolecular forces of attraction. The molecules have the more randomness in the gaseous state as compared to other states. The state of matter that has the least intermolecular forces of the attraction is the gaseous state because of the reason they are in random in the motion.

Thus, in the gaseous state of the matter, the Forces of Attraction the Weakest.

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Answer:

Bismuth oxalate

Explanation:

Answer:

Since all of them are aqueous solutions, the solvent in each solution is H2O. Based on the Raoult's Law, we only have to determine which solution contains the highest mole fraction of the solvent, H2O. The solution that will have the lowest vapor pressure is a. 0.20 m Na2SO4.

Explanation:

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The density of the carbon tetrachloride sample is 1.58 g/cm³.

We need to know about the density to solve this problem. Density is a unit that measures how dense an object is. Density can be measured by dividing mass by volume. It can be written as

ρ = m / V

where ρ is density, m is mass and V is volume

From the question above, we know that

V = 1 L

m = 1.58 kg

Convert the mass of the sample to grams

m = 1.58 kg

m = 1.58 x 1000 g

m = 1580 g

Convert the volume to cc

V = 1 L = 1 dm³

V = 1 x 1000 cm³

V = 1000 cm³

By substituting the following parameters, we get

ρ = m / V

ρ = 1580 / 1000

ρ = 1.58 g/cm³

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Answer:

A. Each type of cell carries out a specific function for the organism.

Explanation:

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During an elimination reaction in organic chemistry, a new double bond (π bond) is formed, resulting in the creation of an alkene functional group. This process involves the removal of a leaving group and the adjacent hydrogen atom from a molecule, resulting in the formation of a double bond between the two adjacent carbon atoms.

In elimination reactions, a strong base or acid is often used to abstract the proton from the adjacent carbon atom, generating a carbanion intermediate. The leaving group is then expelled from the molecule, and the carbanion intermediate undergoes a rearrangement to form a more stable carbocation. Finally, the base or another molecule acts as a nucleophile, capturing a proton from the carbocation to form the double bond. This newly formed double bond represents the alkene functional group and is characteristic of elimination reactions in organic chemistry.

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Answer:

Correct Answer is no. 2.

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4. Bubbles formed.

The mass of the nitrogen gas is approximately 949 grams.

The mass of the nitrogen gas can be calculated using the ideal gas law, which states:

PV = nRT

Where P is the pressure, V is the volume, n is the number of moles of gas, R is the gas constant, and T is the temperature in Kelvin. R is the ideal gas constant ( 0.08206 Latm/molK )

Given thw volume of the Nitrogen gas to be 759l, at ST, temperature equals 273.15 K and pressure 1 atm.

we can rearrange the ideal gas law to solve for n:

PV = nRT

n = PV / RT

Plug in the values

n = ( 1 atm × 759 L ) / ( 0.08206 Latm/molK × 273.15 K )

n = 33.86 mol

Finally, we can calculate the mass of the nitrogen gas using the molar mass of nitrogen:

m = n × M

Where M = 28.02 g/mol is the molar mass of nitrogen.

m = 33.86 mol × 28.02 g/mol

m = 949 g

Therefore, the mass is 949 g.

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The inside of the flask and burette tip are rinsed with water during titration to ensure that all the reagents are completely transferred and react with each other, thus providing accurate results.

During titration, it is crucial to have an accurate measurement of the reagents being used. Rinsing the inside of the flask and burette tip with water helps remove any residual reagent from previous experiments or handling. This ensures that the exact amount of reagent is introduced into the flask, leading to a more precise reaction.

Additionally, rinsing the burette tip with the titrant solution ensures that the initial reading of the burette is accurate. Any water droplets present in the tip can cause a difference in volume, which may lead to inaccurate results.
If the flask and burette tip are not rinsed properly, residual reagents or water droplets may interfere with the reaction, causing an inaccurate measurement of the endpoint. This can lead to errors in determining the concentration of the analyte.
Rinsing the inside of the flask and burette tip with water during titration is a critical step to ensure accurate measurements and reliable results. It helps remove any residual reagents and ensures that the proper amount of reagent is introduced into the flask for a complete reaction. Failure to do so may lead to errors in the outcome of the titration.

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The substance in the image above would be classified as a mixture of elements (option E).

A compound is a substance formed by chemical bonding of two or more elements in definite proportions by weight.

On the other hand, a mixture is made when two or more substances are combined, but they are not combined chemically.

According to this question, an image is shown with two different substances or elements as distinguished by coloration (white and purple). These elements are combined but not chemically bonded, hence, is a mixture.

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The effect of changing the temperature of the nitric acid on the rate of reaction. (Include measuring the volume of carbon dioxide gas produced) is Rate of reaction increases.

When we increase the temperature of the reaction the rate of reaction also increases. With the increase of the temperature of the nitric acid HNO₃, the rate of the reaction also increases as the molecule moves faster. Arrhenius equation given as :'

k = Ae^(Ea / RT)

or, ln k = -Ea /RT + ln A

where,

k = rate constant

A = Arrhenius constant

Ea = activation energy

R = gas constant

T = temperature

Thus, The effect of changing the temperature of the nitric acid on the rate of reaction. (Include measuring the volume of carbon dioxide gas produced) is Rate of reaction increases.

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If the concentration of the base (sodium hydroxide or potassium hydroxide) is increased, then the value of the slope of the trend line would also increase. This is because the slope of the trend line represents the rate of the reaction, which is directly proportional to the concentration of the reactants.

When the concentration of the base is increased, there are more reactant molecules available to react with the acid. This results in a faster reaction rate and a steeper slope on the trend line. Conversely, if the concentration of the base is decreased, there are fewer reactant molecules available, resulting in a slower reaction rate and a flatter slope on the trend line.

It is important to note that the slope of the trend line is only a representation of the rate of the reaction, and does not necessarily indicate the mechanism or efficiency of the reaction. Therefore, while increasing the concentration of the base may result in a faster reaction rate, it may not necessarily be the most efficient or cost-effective way to achieve the desired outcome. Other factors, such as temperature and catalysts, should also be considered when optimizing reaction conditions.

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2x grams = 4x grams, this equation shows that the total mass of the products is equal to the total mass of the reactants, thereby demonstrating the conservation of mass in the reaction.

Compare the total mass of the reactants with the total mass of the products.

Given that x grams of nitrogen react, determine the mass of nitrogen using the molar mass of nitrogen, which is 28 grams per mole. Therefore, the mass of nitrogen is x grams.

Since nitrogen reacts with hydrogen in a 1:3 ratio to form ammonia, the mass of hydrogen can be calculated by multiplying the mass of nitrogen by 3. So, the mass of hydrogen is 3x grams.

The balanced chemical equation for the reaction is:

N₂ + 3H₂ ⇒ 2NH₃

According to the equation, 2 moles of ammonia are produced for every 1 mole of nitrogen (N2) that reacts. The molar mass of ammonia is approximately 17 grams per mole.

Mass of ammonia (NH3) = 2 × (molar mass of ammonia) × moles of ammonia

Mass of ammonia (NH3) = 2 × 17 × (x / molar mass of nitrogen)

Mass of ammonia (NH3) = 34x / 28 grams

Therefore, the total mass of the products (2x grams of ammonia) is equal to the total mass of the reactants (x grams of nitrogen + 3x grams of hydrogen):

Total mass of products = Total mass of reactants

2x grams = x grams + 3x grams

2x grams = 4x grams

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Answer:

measurements are important to do calculations to get correct results and without them scientists cannot form theories

The percentage composition of each element in hydrogen peroxide is 11.19% hydrogen and 88.81% oxygen.

The percentage composition of each element in hydrogen peroxide H2O2 can be calculated by first determining the molar mass of the compound. The molar mass of hydrogen peroxide is 34.0147 g/mol. This can be calculated by adding the atomic masses of two hydrogen atoms (2 x 1.0079 g/mol) and two oxygen atoms (2 x 15.9994 g/mol).
Next, we can calculate the percentage composition of each element by dividing the atomic mass of each element by the total molar mass and multiplying by 100%. For hydrogen, the atomic mass is 2.0159 g/mol, so the percentage composition of hydrogen in hydrogen peroxide is (2 x 2.0159 g/mol / 34.0147 g/mol) x 100% = 11.19%. For oxygen, the atomic mass is 15.9994 g/mol, so the percentage composition of oxygen in hydrogen peroxide is (2 x 15.9994 g/mol / 34.0147 g/mol) x 100% = 88.81%.
Therefore, the percentage composition of each element in hydrogen peroxide is 11.19% hydrogen and 88.81% oxygen. This composition can be used to determine the properties and behavior of hydrogen peroxide in various chemical reactions and applications.

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Beans are processed through 'nibbing'. During the nibbing process, the roasted cocoa beans are crushed and ground into a paste called cocoa mass or cocoa liquor.

This cocoa mass can then be further processed to separate the cocoa solids from the cocoa butter, which is the fat component of the cocoa bean. The separated cocoa solids and cocoa butter are used in the production of chocolate. Pure cocoa mass (cocoa paste) in solid or semi-solid form is known as chocolate liquor. It includes about equal amounts of cocoa butter and solid cocoa, much like the cocoa beans (nibs) from which it is made. It is made from fermented, dried, roasted, and separated from their skins cocoa beans. To make cocoa mass (cocoa paste), the beans are pulverised.

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P1 = P2 and since momentum is conserved, 21 = (6.0)(2.77) + (0.70). (vpin). 4.38 = 0.70 vpin, vpin = 6.3 m/s to the right, 21 = 16.62 + 0.70 vpin, 

The bowling ball is solely affected by friction, hence Ff is used in place of F and equals mass times acceleration. The normal force (mass times gravity) multiplied by the friction coefficient equals the friction force, which also equals mass times acceleration.

The falling ball travels a distance of d = 12 9.8 (m/s2) t2, with a speed of v = 9.8 (m/s2) t as a function of time. The ball travels 4.9 m in a second. The falling ball's velocity is v = -9.8 (m/s2) t j, and its position is r = (4.9 m - 12 9.8 (m/s2) t2) j as a function of time.

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Answer: The standard enthalpy of reaction is reported in 10.568943 kilojoules (kJ), and the answer should be rounded to three decimal places 10.569 kJ.

The standard enthalpy of reaction is defined as the amount of energy released or absorbed when one mole of reactants undergoes a chemical reaction under standard conditions.

It is denoted by ΔH° and is measured in kilojoules (kJ).To report your answer to three digits after the decimal, you need to round your answer to three decimal places. For example, if your answer is 10.568943 kJ, you should report it as 10.569 kJ.

Therefore, the answer to the question is the standard enthalpy of reaction is reported in kilojoules (kJ), and the answer should be rounded to three decimal places.

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Answer:

The first one is Propane

The second one is HEPTANE

The third one is octane

The 4th is butane

the 5th is decane

The structures have been named according to IUPAC as \(\rm C_3H_8\) Propane, \(\rm C_7H_{16}\) Heptane, \(\rm C_8H_{18}\) Octane, \(\rm C_4H_{10}\) Butane, and \(\rm C_{10}H_{22}\) Decane.

The images has been the representation of the ball and stick structure of the compounds. The central balls have been the representation of the carbon atom , with small balls attached to the sticks have been the representation of the hydrogen attached.

The following structures has been given as:

The structures have been named according to IUPAC as \(\rm C_3H_8\) Propane, \(\rm C_7H_{16}\) Heptane, \(\rm C_8H_{18}\) Octane, \(\rm C_4H_{10}\) Butane, and \(\rm C_{10}H_{22}\) Decane.

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The concentration of AB at 21 s is 0.526 M.

The data below show the concentration of AB versus time for the following reaction:

AB(g)→A(g)+B(g)Time (s)  [AB] (M)0  0.95050  0.459100  0.302150  0.225200  0.180250  0.149300  0.128350  0.112400  0.0994450  0.0894500  0.0812

Determine the value of the rate constant:

The reaction is a first-order reaction. The concentration of AB changes as follows:

[AB]t = [AB]0e^-ktln

([AB]t/[AB]0) = -ktln

(0.459/0.950) = -k(

0.693)k = 1.88 × 10^-3 s^-1

The rate constant value is 1.88 × 10^-3 s^-1.

Predict the concentration of AB at 21 s.

The formula for a first-order reaction is given by ln

([A]t/[A]0) = -ktln([AB]t

[AB]0) = -kt[AB]t = [AB]0 e^-kt

[AB]t = (0.950) e^-(1.88 × 10^-3)(21)[AB]t = 0.526 M.

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The element that can be found in both plays and stories is "characters."

Characters are an essential element of both plays and stories. They are the individuals or entities that drive the narrative, interact with each other, and contribute to the development of the plot. In plays, characters are typically portrayed by actors who perform their roles on stage, while in stories, characters are described and depicted through written words.

Characters can be central or supporting figures in a play or story, and they play a vital role in engaging the audience or readers. They have distinct personalities, motivations, and relationships that influence the events and conflicts within the narrative. Through their actions, dialogue, and character development, they contribute to the overall themes and messages conveyed by the play or story.

Whether it is a theatrical production or a written narrative, the presence and portrayal of characters are fundamental to creating engaging and compelling plays and stories.

Thus, the element that can be found in both plays and stories is "characters."

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Answer:

ionic bonding or covalent

Explanation: