structure and function of cellulose?

The revenues of the note will equal the $225,000 face value, provided the note has an interest rate of 8%.

On Friday, December 9, 2022, the benchmark 30-year fixed mortgage's average rate is 7.32%, which is a 15 basis point increase from the previous week. If you want to restructure your present mortgage.

The nominal value and face value are both used interchangeably. That which a money is worth. Simply said, it is a security's nominal value. A 45-day note having a face value of $225,000 was issued by Nyree Co. to Conrad Bank based on the information provided. Consequently, the amount of the note's revenues will match its face value, which is 225,000.

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Conversion factor used to convert volume is 1L = 1000 mL.

15.43L = 15430mL

The same attribute is expressed using a unit conversion but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometers, feet, or any other measurement unit instead of miles. Measurements are frequently offered in one set of units, like feet, but are required in another set, like chains. A conversion factor is a mathematical equation that facilitates an equal exchange of feet for chains.

A conversion factor is a number that is used to multiply or divide one set of units into another. If a conversion is required, it must be done using the correct conversion factor to get an identical value.

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Answer:

take 75 gm or it will be overdose

Answer:

Explanation:

i wish i can help

Answer:

c or b

Explanation:

brainiest

Answer:

Three primary reasons. First, there is simply more water-covered places than dry ground places for the animals and plants to have lived. Second, the seas are much more crowded with the kinds of life that leave fossils than the land is. Third, the process that form fossils work very well under water.

Explanation:

A pure substance is indeed a single kind of matter with a uniform and definite composition. In contrast, a mixture is made up of two or more substances that are together in the same place, but each substance maintains its own properties.

Mixtures can be classified as either homogeneous or heterogeneous. A homogeneous mixture has a uniform composition throughout, meaning its components are evenly distributed and not easily distinguishable. Examples include solutions, such as saltwater or air.

On the other hand, a heterogeneous mixture has an uneven distribution of its components, and its individual substances can be easily identified. Examples include sand and water, or oil and water.

One key distinction between a pure substance and a mixture is that a pure substance has a fixed composition, while the composition of a mixture can vary. This means that mixtures can be separated into their individual components through physical processes like filtration, evaporation, or distillation, without undergoing any chemical changes.

In summary, a pure substance is a single type of matter with a definite and uniform composition, while a mixture consists of two or more substances that are combined in the same place, but each substance retains its individual properties. Mixtures can be homogeneous or heterogeneous and can be separated into their components through physical methods.

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Answer:

During a zombie apocalypse I would just run & hide ;)

The amount, in kJ, of heat needed to completely vaporize 50.0g of water at 100°C is 118.8 kJ.

The heat needed to completely vaporize 50.0g of water at 100°C can be calculated using the following formula:

q = m x Hv

where:

First, we need to convert 50.0g to moles by dividing by the molar mass of water which is approximately 18.015 g/mol3:

moles of water = 50.0 g / 18.015 g/mol moles of water = 2.776 mol

Thus:

q = (2.776 mol) x (40.65 kJ/mol) q = 112.8 kJ

In other words, 112.8 kJ of heat is needed to completely vaporize 50.0g of water at 100°C.

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Metallic oxides and non-metallic oxides vary primarily in that metal oxides are basic chemicals while non-metal oxides are acidic.

Acids are produced when non-metal oxides and water combine. Non-metal oxides, for instance, have a very acidic H₂SO₄ solution when SO₃ is dissolved in water due to their acidic nature. Salts are produced when metal oxides interact with acids and bases. Oxyacids can be produced using non-metallic oxides. Hydronium ions are produced in aqueous solutions by oxyacids. SO₂, ClO₂, SO₃, and NO₂, among others, are examples of non-metallic oxides.

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Answer:

metallic oxides are when oxygen combines with metal and non metallic oxides are metals which are not combining with oxygen

Answer:

The answer is true.

Explanation:

The deeper you go the more water there's on top of you pushing down.

Answer:

True

Explanation:

The combined gas law equation is:

(P1 * V1) / (T1) = (P2 * V2) / (T2)

The volume of the gas at 30 °C is approximately 760.67 mL.

To determine the volume of the gas at 30 °C, we can use the combined gas law equation, which relates the initial and final conditions of temperature and volume for a gas.

The combined gas law equation is:

(P1 * V1) / (T1) = (P2 * V2) / (T2)

Where:

P1 and P2 are the initial and final pressures, respectively

V1 and V2 are the initial and final volumes, respectively

T1 and T2 are the initial and final temperatures in Kelvin, respectively

We need to convert the temperatures from Celsius to Kelvin by adding 273.15 to each value.

Given:

V1 = 550 mL

T1 = -55 °C = 218.15 K

T2 = 30 °C = 303.15 K

Assuming the pressure remains constant, we can rearrange the equation to solve for V2:

V2 = (P1 * V1 * T2) / (P2 * T1)

Since the pressure is not specified in the problem, we can assume it remains constant, allowing us to cancel out the pressure terms. Thus, the final equation becomes:

V2 = (V1 * T2) / T1

Plugging in the given values:

V2 = (550 mL * 303.15 K) / 218.15 K

Simplifying the calculation, we find:

V2 ≈ 760.67 mL

Therefore, the volume of the gas at 30 °C is approximately 760.67 mL.

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Answer:

+2

Explanation:

Because the charge of the chloride ion is negative, that means that the charge of the magnesium ion must be positive since cations and anions go together, not cation and cation nor anion and anion. Using the "reverse criss-cross method", since the subscript of Mg is 1, that means that this is the lowest whole number ratio so we don't need to worry about simplifying. Therefore, since the charge of Cl is 2, the answer is +2.

Explanation

12. Given equation:

From the Periodic Table; the Molar mass of H = 1.01 g, Mg = 24.31 g, Cl = 35.45 g

Therefore, the molar masses of all substances involved are:

Mg = 24.31 g

2HCl = 2(1.01 + 35.45)g = 2 x 36.46 g = 72.92 g

H₂ = 2 x 1.01 g = 2.02 g

MgCl₂ = 24.31 g + 2(35.45) = 24.31 g + 70.90 g = 95.21 g

The number of moles of the gas can be determined using ideal gas equation. The number of moles of Br gas in 2.8 L at 1.38 atm and 327 K is 0.144 moles.

Ideal gas law states the relation between temperature, pressure and volume with the number of moles of a gas as written below:

PV = nRT

where, R is the universal gas constant equal to 0.082 L atm/K mol

Given that, T = 327 K

P = 1.38 atm

V = 2.8 L.

Then, n = PV/RT

Number of moles of Br gas, n = (1.38 atm ×2.8 L)/(327 K × 0.082 L atm/K mol ) = 0.144 moles.

Therefore, the number of moles of Br gas in in 2.8 L at 1.38 atm and 327 K is 0.144 moles.

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The percent yield of KCl is 82.2 %. The percent yield of sodium hydroxide is 36.99 %. The reaction produces about 1.35 L of water.

1)

Number of moles of potassium chlorate = 1200.0 grams/122.55 g/mol

= 9.79 moles

If 2 moles of potassium chlorate produces 2 moles of potassium chloride then 9.79 moles of potassium chloride is produced.

Theoretical yield =  9.79 moles * 74.55 g/mol

= 729.8 g

Percent yield = actual/theoretical * 100/1

=  600.0 grams / 729.8 grams * 100/1

= 82.2 %

2)

Number of moles of water = 705 grams/18 g/mol = 39.2 moles

Number of moles of sodium oxide = 302 grams/62 g/mol

= 4.9 moles

If the reaction is 1:1 the sodium oxide is the limiting reactant

1 mole of sodium oxide produces 2 moles of sodium hydroxide

4.9 moles of sodium oxide produces 4.9 moles  * 2 moles/ 1 mole

= 9.8 moles

Theoretical yield of the sodium hydroxide = 9.8 moles * 40 g/mol

= 392 g

Percent yield = 145 g/392 g * 100/1

= 36.99 %

3)

Mass of the pentane = density * volume

= 0.6262 g/mL * 3000 mL

= 1878.6 g

Number of moles of the pentane = 1878.6 g/72 g/mol

= 26.1 moles

Number of moles of oxygen = 3200.0 g/32 g/mol

= 100 moles

If 1 mole of pentane reacts with 8 moles of oxygen

26.1 moles of pentane reacts with 26.1 moles * 8 moles/1 mole

= 208.8 moles

Hence oxygen is the limiting reactant

If 8 moles of oxygen produces 6 moles of water

100 moles of oxygen would produce 100 moles * 6 moles/8 moles

= 75 moles

Mass of water produced = 75 moles * 18 g/mol = 1350 g

Since volume = mass/density

Volume of water = 1350 g/1.00 g/mL

= 1350 mL or 1.35 L

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Answer:

B

Explanation:

Atoms of different elements have different atomic structures because they contain different numbers of protons and electrons. Here the given atomic models represent Beryllium, Be, and boron, B. The correct option is D.

An atomic model refers to the structure of an atom which comprises of a nucleus at the centre in which the protons and neutrons are present. The positively charged particles are called protons, negatively charged particles are called electrons whereas neutrons are neutral.

The number of protons or electrons in atom is known as the atomic number. The sum of number of protons and neutrons is called the mass number. Neutral atoms have equal numbers of protons and electrons.

Here 'Be' atom has 4 protons and hence its atomic number is 4, similarly 'B' atom has 5 protons and its atomic number is 5.

Thus the correct option is D.

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The best way to measure the pH of a natural solution while out in a forest is to use a portable pH meter or pH test strips specifically designed for field use. These instruments provide accurate and reliable pH measurements and are convenient for outdoor applications.

1. Prepare the necessary equipment: Before heading out to the forest, gather the required tools. You will need a portable pH meter or pH test strips, as well as the necessary reagents or calibration solutions if using a pH meter.

2. Collect the sample: Locate the natural solution you want to measure the pH of, such as a stream, pond, or soil. Use a clean container to collect a representative sample of the solution.

3. Calibrate the pH meter (if applicable): If you are using a portable pH meter, it is essential to calibrate it before taking measurements. Follow the manufacturer's instructions to calibrate the meter using the provided calibration solutions.

4. Conduct the measurement: For pH meters, immerse the electrode into the collected sample. Allow some time for the reading to stabilize, and then record the pH value indicated on the meter's display.

5. Using pH test strips: If you are using pH test strips, dip the strip into the collected sample for the recommended amount of time. Remove the strip and compare the color change with the provided color chart. Determine the corresponding pH value from the chart.

6. Repeat for accuracy: To ensure reliability, repeat the measurement process at least once and compare the results. This step helps confirm the accuracy of your measurements.

7. Record and analyze the data: Note down the pH values obtained and any relevant observations. Analyze the data as needed for your research or monitoring purposes.

By following these steps and using the appropriate equipment, you can effectively measure the pH of a natural solution while in a forest setting.

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Answer:

Solutions having solvent in solid-state and solute in the gaseous state are called gas-solid solution. Hydrogen is a gas at STP and platinum is solid. Hence, Hydrogen gas adsorbed on the surface of platinum is an example of gas in solid solution.

Answer:

65.0 K

Explanation:

To find the temperature, you need to use the Ideal Gas Law:

PV = nRT

In this equation,

-----> P = pressure (pKa)

-----> V = volume (L)

-----> n = moles

-----> R = Ideal Gas Constant (8.31 L*kPa/mol*K)

-----> T = temperature (K)

You can plug the given values into the equation and simplify to find the temperature.

P = 202.65 pKa                          R = 8.31 L*kPa/mol*K

V = 2.0 L                                     T = ? K

n = 0.75 moles

PV = nRT

(202.65 pKa)(2.0 L) = (0.75 moles)(8.31 L*kPa/mol*K)T

405.3 = (6.2325)T

65.0 K = T

Answer:

1) increase concentration

2) decrease the amount

3) decrease the concentration

4) it would increase

Explanation: edge 2021

Answer:

1) increase concentration

2) decrease the amount

3) decrease the concentration

4) it would increase

Explanation:

Answer:

280 m/s

Explanation:

Answer:

Zinc nitrate is an inorganic chemical compound with the formula Zn(NO3)2. This white, crystalline salt is highly deliquescent and is typically encountered as a hexahydrate Zn(NO3)2•6H2O. It is soluble in both water and alcohol.

Explanation:

correct me if im wrong please

You need to be aware of the temperature and pressure requirements for a given chemical in order to locate spots on a phase diagram.

A phase diagram is a graph that displays, as a function of temperature and pressure, the equilibrium conditions between a substance's various states of matter (solid, liquid, and gas). The regions of the phase diagram that correspond to the solid, liquid, and gas states are often delineated by a sequence of curves, along with the intersections of these regions.

You need to be aware of the substance's temperature and pressure conditions in order to pinpoint a point on a phase diagram. For instance, you can identify a point on the phase diagram if you have a sample of a substance at a specific temperature and pressure.

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1,3 diiodo propane is formed when oxetane is heated at reflux.

Reflux is defined as the process which involves heating the chemical reaction for a specific amount of time, while continually cooling the vapor produced back into liquid form, using a condenser. The vapors that are produced above the reaction continually undergo condensation, returning to the flask as a condensate.

Oxetane is a stable carbon compound which shows characteristic properties when reacted with conc. acids. When oxetane reacts with HI it gets reduced to form 1,3 diiodo propane which is also an organic compound.

Therefore, when oxetane is heated in excess amount of concentrated HI, the product formed is 1,3 diiodo propane.

The reaction is given in the image attached below.

The given question is incomplete and the completed question is given below.

Draw the structural formula(s) for the organic product(s) formed when the following compound (OXETANE) is heated at reflux in an excess of concentrated (HI) .

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Answer:

Even in the absence of human-induced climate change, it is unlikely that ice sheets would build up in the next several thousand years, and the current interglacial climate (a period of time with low ice volume) would likely continue for another 50,000 years, making this an unusually long interglacial period. "There's no chance of us going into an ice age now because the greenhouse gases we've put into the atmosphere during the industrial era have warmed the earth." Although scientists cannot say we have definitely prevented the next ice age, it's certainly accepted that humans have had a significant part to play. When plate-tectonic movement causes continents to be arranged such that warm water flow from the equator to the poles is blocked or reduced, ice sheets may arise and set another ice age in motion.

Explanation:

The concentration of H₂SO₃ solution is equal to 0.123 M.

A neutralization reaction is described as a reaction in which an acid and base react to form salt and water. When a strong acid will react with a base then the salt which is formed can be neither acidic nor basic.

When H₂SO₃ (a strong acid) reacts with KOH, the resulting salt is K₂SO₃  and water.

H₂SO₃  +  2KOH   →   K₂SO₃  +   2H₂O

Given, the concentration of KOH = 0.235 M

The volume of the KOH = 65.25 ml = 0.06525 L

The number of moles of KOH, n = M × V = 0.235 × 0.06525 = 0.0153 M

The volume of the  H₂SO₃ = 62.4 ml = 0.0624 L

The number of moles of  H₂SO₃, n = 0.0153/2 = 0.00767 mol

The concentration of H₂SO₃ =0.00767/0.0624 = 0.123 M

Therefore, the molarity of  H₂SO₃ is 0.123 M.

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The order of the energy levels for the Li2 molecule is:

1s < σ2s < 2s < σ*2s

The 1s orbital is the lowest in energy because it is closest to the nucleus and has the highest electron density. The σ2s orbital is next in energy because it is a bonding orbital that is formed by the overlap of two atomic 2s orbitals. The 2s orbital is higher in energy than the σ2s orbital because it is an atomic orbital that has not participated in bonding. The σ*2s orbital is the highest in energy because it is an antibonding orbital that weakens the bond between the two Li atoms.

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