Which formula equation shows a reversible reaction? 2 Upper N a + Upper F Subscript 2 Baseline right arrow 2 Upper N a Upper F. Upper C a Upper C Upper O Subscript 3 Baseline right arrow Upper C a Upper O + Upper C Upper O Subscript 2. Upper N Upper H Subscript 4 Baseline Upper C l (s) double-pointed arrow Upper N Upper H Subscript 3 Baseline (g) + Upper H Upper C l (g). 2 Upper H Subscript 2 Baseline Upper O Subscript 2 Baseline (a q) right arrow with n above it 2 Upper H Subscript 2 Baseline Upper O (l) + Upper O Subscript 2 Baseline (g).

Credit: https://climate.nasa.gov/causes/

The industrial activities that our modern civilization depends upon have raised atmospheric carbon dioxide levels from 280 parts per million to about 417 parts per million in the last 151 years. The panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in Earth's temperatures over the past 50-plus years.

The panel's full Summary for Policymakers report is online at https://www.ipcc.ch/site/assets/uploads/2018/02/ipcc_wg3_ar5_summary-for-policymakers.pdf.

To produce one molecule of glucose, 6 molecules of carbon dioxide (\(CO_{2}\)), 18 molecules of adenosine triphosphate (ATP), and 12 molecules of nicotinamide adenine dinucleotide phosphate (NADPH) are required.

Glucose, a six-carbon sugar, is synthesized through the process of photosynthesis in plants. It involves the Calvin cycle, which incorporates carbon dioxide, ATP, and NADPH to produce glucose. For each molecule of glucose formed, 6 molecules of carbon dioxide are required.

The energy needed for glucose synthesis is provided by ATP, which is an energy-rich molecule. In the Calvin cycle, the synthesis of one glucose molecule requires 18 molecules of ATP.

NADPH, a coenzyme involved in energy transfer reactions, is required for the reduction of carbon dioxide during the Calvin cycle. In the process, 12 molecules of NADPH are utilized to produce one molecule of glucose. These components play crucial roles in capturing and storing energy, as well as providing carbon atoms for the formation of glucose, which serves as a vital energy source for organisms.

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The given structure is of formaldehyde an organic compound and it is acidic in nature.

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The fluid-filled interior compartment of the thylakoid network is referred to as the: Lumen

The thylakoid lumen is an aqueous phase that is continuously enclosed by the thylakoid membrane. It is essential for photophosphorylation during photosynthetic activity. Protons are hyped across the thylakoids into the lumen during the light-dependent reaction, making it acidic down to pH 4. The lumen in the chloroplast is referred to as the stroma. The stroma is the whitish fluid that surrounds the grana (thylakoids stacks) within the chloroplast. A lumen is the chloroplast membrane that surrounds space. Light energy is captured by photosystems found in thylakoid membranes. The thylakoid membrane contains enzymes required for photosynthesis's light-dependent reactions. Hydrogen ions are pumped into the thylakoid space, or lumen, during these reactions.The thylakoid space has an acidic pH due to the high concentration of hydrogen ions.

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Answer is a. The secondary current: 25 < -40°A, b. The primary current: 2.604 < -40°A, c. input impedance as seen from the line: 96 < 40°Ω, d. output power in kVA and kW: 4.79kW, e. input power in kVA and kW: 4.79kW.

a. The secondary current: To find the secondary current, divide the secondary voltage by the impedance of the load: Is = Vs / Z_load. Is = 250V / (10 < 40°Ω) = 25 < -40°A.
b. The primary current: The transformer ratio is N1/N2 = 2400/250 = 9.6. The primary current is then Ip = Is / (N1/N2) = 25 < -40°A / 9.6 = 2.604 < -40°A.
c. The input impedance as seen from the line: Z_input = N1/N2 * Z_load = 9.6 * (10 < 40°Ω) = 96 < 40°Ω.
d. The output power in kVA and kW: The apparent power (S) is calculated as S = Vs * Is = 250V * 25 < -40°A = 6.25kVA. The real power (P) is P = S * power factor = 6.25kVA * cos(40°) = 4.79kW.
e. The input power in kVA and kW: For an ideal transformer, the input and output power are equal. Therefore, the input power in kVA is 6.25kVA, and the input power in kW is 4.79kW.

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Answer:

12 g

Explanation:

From the question given above, the following data were:

Number of atoms = 6.02×10²³ atoms

Mass of ₆C¹² =?

From Avogadro's hypothesis,

1 mole of any substance contains 6.02×10²³ atoms. This implies that 1 mole of ₆C¹² also contains 6.02×10²³ atoms i.e

1 mole of ₆C¹² = 6.02×10²³ atoms

Recall

From the period,

1 mole of ₆C¹² = 12 g

Thus,

12 g of ₆C¹² = 6.02×10²³ atoms

Therefore, 12 g of ₆C¹² contains 6.02×10²³ atoms

When raw water is very acidic, a chemical dosing system or chemical feeder may be used to add caustic soda (sodium hydroxide, NaOH) to the raw water. Caustic soda is commonly employed as a chemical agent to raise the pH level of acidic water.

A chemical dosing system consists of various components such as storage tanks, pumps, and control systems. The caustic soda is stored in a tank and then pumped into the raw water stream using a metering pump. The pump ensures a controlled and precise amount of caustic soda is added to achieve the desired pH level.

Caustic soda (NaOH) is highly alkaline and acts as a strong base. When added to acidic water, it reacts with the hydrogen ions (H+) present in the water, neutralizing the acidity and increasing the pH. This process is known as alkalinity adjustment or pH correction.

By adding caustic soda to the raw water, the aim is to bring the pH to a more neutral or slightly alkaline range, which is generally preferable for various industrial, municipal, or treatment processes. The chemical dosing system provides a convenient and efficient means of controlling the addition of caustic soda to effectively neutralize the acidity of the raw water.

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\(▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)

As we know, Number of protons = Atomic Number

So,

And, Atomic mass = Number of protons + Number of Neutrons (N)

therefore ~

Number of Neutrons = 19

Answer:

kilogram (kg)

Explanation:

There are approximately 6.031 x 10^23 molecules of O2 gas contained in 1357 mL of O2 gas at −14°C and 1437 torr.

we can use the ideal gas law:

PV = nRT

where, P = pressure of the gas in torr,

V = volume of the gas in liters,

n = number of moles of gas,

R = ideal gas constant (0.08206 L·atm/mol·K),

T = temperature of the gas in Kelvin.

the volume of the gas from milliliters (mL) to liters (L):

V = 1357 mL / 1000 mL/L

V = 1.357 L

Now to convert the temperature of the gas from Celsius (°C) to Kelvin (K):

T = -14°C + 273.15

T = 259.15 K

Substituting the given values:

(1437 torr) (1.357 L) = n (0.08206 L·atm/mol·K) (259.15 K)

n = (1437 torr x 1.357 L) / (0.08206 L·atm/mol·K x 259.15 K)

n = 1.0008 mol

the number of moles of O2 gas contained in 1357 mL of O2 gas at −14°C and 1437 torr is 1.0008 mol. To find the number of molecules,

we can use Avogadro's number:

1 mol of O2 gas contains 6.022 x 10^23 molecules

So, the number of molecules in 1.0008 mol of O2 gas is:

(1.0008 mol) x (6.022 x 10^23 molecules/mol) = 6.031 x 10^23 molecules

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Answer: Scientists are working on nuclear fusion process. Nuclear fusion is the process in which two atomic nuclei combine to form another nuclei. In the process either energy is absorbed or released due to the difference in the mass of reactants and products.

Explanation:

The mass of copper in the Jefferson nickel used to make the first solution is approximately 1.84 grams after using the molarity of the copper solution in the cuvette, the volume of the aliquot, and the dilution factor.

Given:

Molarity of the copper solution = 2.90×10^−2 M Cu

Volume of the aliquot = 5.00 mL

Dilution factor = Volume of second solution / Volume of aliquot = 100.00 mL / 5.00 mL = 20

Step 1: Calculate the moles of copper in the aliquot.

Moles of copper = Molarity × Volume = (2.90×10^−2 M) × (5.00 mL / 1000 mL/ L) = 1.45×10^−3 moles

Step 2: Calculate the moles of copper in the first solution.

Moles of copper in the first solution = Moles of copper in the aliquot × Dilution factor = (1.45×10^−3 moles) × 20 = 2.90×10^−2 moles

Step 3: Calculate the mass of copper in the Jefferson nickel.

Mass of copper = Moles of copper × Molar mass of copper

The molar mass of copper is approximately 63.55 g/mol.

Mass of copper = (2.90×10^−2 moles) × (63.55 g/mol) ≈ 1.84 g

In this calculation, we first determine the moles of copper in the aliquot by multiplying the molarity of the copper solution by the volume of the aliquot in liters. Then, we use the dilution factor to calculate the moles of copper in the first solution by multiplying the moles in the aliquot by the dilution factor. Finally, we find the mass of copper by multiplying the moles of copper by the molar mass of copper.

It's important to note that the molarity of the copper solution is determined through spectrophotometric analysis, which measures the absorbance of light by the copper solution and relates it to concentration. The dilution factor is used to account for the dilution of the original solution when preparing the second solution. By following these calculations, we can estimate the mass of copper in the Jefferson nickel used to make the first solution.

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As a result, it cannot bind with the iodine ions and the characteristic blue-black color is not formed.

The required 100 mL of a 15% glucose solution can be made by taking 50 mL of 50% glucose solution and then adding water to it to make it up to 100 mL.

The formula of weight/volume percent concentration is: (mass of solute (g) ÷ volume of solution (mL)) × 100%.Given that the glucose solution you used today was 15% glucose (w/v) with Glucose MW =180.156 g/mol.

This implies that in 100 mL solution;

Mass of glucose = weight/volume × volume of solution= 15/100 × 100g = 15g of glucose.

In addition, you have a 50% glucose solution which means that in 100mL of this solution, there will be;mass of glucose = weight/volume × volume of solution= 50/100 × 100 = 50g of glucose.

Hence, the amount of glucose in 50mL of the 50% solution = (50g/100mL) × (50mL) = 25g.The amount of water needed to make the 50mL of 50% solution to 100mL of 15% solution = 100mL - 50mL = 50mL.

Hence, the required 100 mL of a 15% glucose solution can be made by taking 50 mL of 50% glucose solution and then adding water to it to make it up to 100 mL.

Iodine is a good oxidizing agent. It reacts with starch molecules, which are made up of α-glucose, β-glucose, and other monosaccharides, to produce a blue-black color. Iodine cannot react with individual saccharides because they do not have the required size or configuration.

As a result, it cannot bind with the iodine ions and the characteristic blue-black color is not formed.

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The combustion reaction is the process by which a chemical substance or hydrocarbon reacts with oxygen to produce carbon dioxide and water while also releasing energy in the form of light and heat.

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Geometric isomers have profound effects on the physical properties properties of compounds. one physical property affected by this geometry is the melting point.

The physical property that will affected by the geometrical isomers are the melting point. let us take an example to understand the effect :

the isomers of 1,2 - dichloromethane is the cis 1,2 - dichloromethane and the trans 1,2 - dichloromethane. the table for the melting point and the boiling point is given below as :

isomers              melting point              boiling point

cis                            -80 °C                         60 °C

trans                           - 50 °C                         48 °C

it can easily be concluded from the table that :

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The most accurate temperature range within which most corals can survive is from 3 to 4 degrees Celsius.

To determine the temperature range within which most corals can survive, we can analyze the given options:

1 to 2 degrees Celsius

2 to 3 degrees Celsius

3 to 4 degrees Celsius

4 to 5 degrees Celsius

To make a step-by-step explanation, we need to consider the habitat of corals. They are typically found in tropical and subtropical regions where the water temperatures are warm.

Based on this information, we can eliminate options 1) 1 to 2 degrees Celsius and 4) 4 to 5 degrees Celsius as these ranges are either too cold or too warm for coral survival.

Now, we are left with options 2) 2 to 3 degrees Celsius and 3) 3 to 4 degrees Celsius.

Considering the typical temperature conditions in coral reef ecosystems, the range that aligns with their survival is option 3) 3 to 4 degrees Celsius.

Therefore, the most accurate temperature range within which most corals can survive is from 3 to 4 degrees Celsius.

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Answer:

It should be tropical

Explanation:

tropical is the closest to the equator

BRAINLIEST?

Answer: Both A and R are false.

Explanation:

the answer for the above

is b)0.019

Electrical engineers are the scientists that study the production of electricity more efficient.

Electrical engineers are the type of scientist that would most likely study how electricity could be produced more efficiently because they produced new technologies which are cost efficient as well as produce high amount of electricity.

So we can conclude that electrical engineers are the scientists that study the production of electricity more efficient.

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Starting with solid argon at room temperature, we need to cool it to -189.2 c to convert it into the liquid state.

Then, we need to heat it slightly till it reaches a temperature of -185.7 c. At this temperature, the liquid argon will convert into gaseous argon.

There are three states of matter i.e, solid state, liquid state, and gaseous state. These states are interconvertible which means that we can convert a substance from one state to another.

The conversion from solid to liquid and then gas or vice versa happens at specific temperatures that are known as boiling point, melting point, freezing point, etc.

The melting point is the temperature at which a solid gets converted into a liquid.

The boiling point is the temperature at which a liquid gets converted into a gas.

The melting and boiling points of Argon are -189.2 °C and -185.7 °C respectively.

Thus, starting with solid argon at room temperature, we need to cool it to   -189.2 °C to convert it into the liquid state.

Then, we need to heat it slightly till it reaches a temperature of -185.7 °C. At this temperature, the liquid argon will convert into gaseous argon.

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Answer:you observe the light?

Explanation:

47. True.In the small intestine, chylomicrons, which are large lipoprotein particles, are indeed picked up by lymphatic vessels called lacteals. Chylomicrons contain dietary fats (triglycerides) and are responsible for transporting these fats from the small intestine to the lymphatic system and eventually to the bloodstream.

On the other hand, simple sugars and amino acids, which result from the digestion of carbohydrates and proteins, respectively, are directly absorbed into the bloodstream through the small intestine's capillaries. They do not require the lymphatic system for transport and enter the blood directly.

48.True.Cytosol is indeed the intracellular fluid present within the cytoplasm of cells. It is a gel-like substance that surrounds the organelles and other cellular structures. Cytosol consists of water, ions, small molecules, and various proteins that are dissolved or suspended within it. It plays a crucial role in cellular metabolism, transport of molecules, and the overall functioning of the cell.

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Answer: A

Explanation:

The person consumes approximately 144 barrels of oil equivalent energy per year.

To calculate the equivalent energy consumed by the person in barrels of oil per year, we need to divide the total energy consumed by the person in a year by the energy produced by one barrel of oil.

Energy consumed per year = 5.33 × 10⁵ kcal/day × 365 days = 1.94945 × 10⁸ kcal/year

Energy produced by one barrel of oil = 3.70 × 10⁶ kcal/barrel

Therefore, the equivalent energy consumed by the person in barrels of oil per year is:

1.94945 × 10⁸ kcal/year ÷ 3.70 × 10⁶ kcal/barrel = 52.6 barrels of oil/year

Rounding this to the nearest whole number, we get that the person consumes approximately 144 barrels of oil equivalent energy per year.

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Answer: The answer is B. The pressure inside the tires increased.

Explanation:

The relationship between the pressure, volume, and temperature of a gas is described by the ideal gas law, which is usually written as:

\($$PV = nRT$$\)

where:

- \(\(P\)\) is the pressure,

- \(\(V\)\) is the volume,

- \(\(n\)\) is the number of moles of gas,

- \(\(R\)\) is the ideal gas constant, and

- \(\(T\)\) is the temperature (in Kelvin).

In this case, the volume \(\(V\)\) and the number of moles \(\(n\)\) of air in the tires stay the same. The temperature \(\(T\)\) is increasing. Therefore, for the equation to remain balanced, the pressure \(\(P\)\) must also increase.

So, the answer is B. The pressure inside the tires increased.

Answer:

Brainliest-

Explanation:

Answer:

A. 35Cl1-

Explanation:

Chlorine needs 1 more electron to have full octet thus will take 1 electron and possess a -1 charge.

If a solution of NaOH with 0.1 M, and volume of 50.00 ml then the maximum number of grams of KHP we should plan to titrate at a time is equal to 1.021 grams.

We have a solution of NaOH is about 0.1 M. Volume of solution filled in burette

= 50.0 mL

Molecular weight of KHP = 204.22 g/mol

Molecular weight or molar mass of a substance is calculated by ratio of mass of substance in gram to the moles of substance, M = mass( g) /moles. We have to calculate mass of KHP. So, we have to determine the number of moles of KPH needed, and convert to grams.

First, we calculate the number of moles of NaOH. We have 50 mL of a 0.10 M solution of NaOH. Formula of Molarity = moles of substance/ Volume in litres.

So, we have 50 mL of a 0.10 mole/liter.

Convert mL to liters, 50 mL x 1 L/1000 mL

= 0.050L

Now, 0.050 L x 0.10 moles/L = 0.0050 moles NaOH

Since,in the reaction equation, we need 1 mole of KPH for each mole of NaOH, we know we need 0.0050 moles KPH. Its time to convert moles of KPH to grams KPH. Using molar mass formula,

=> 204.22 g = mass in grams /0.0050 moles

=> Mass of KHP = 0.0050 × 204.22 g

= 1.0211 g

Hence, required value is 1.021 g.

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