design a 5‑step synthesis of the alcohol shown using the reagents provided.

The potential impact of a growing bison population on soil and plant functionalities is uncertain. Bison & elk have a lot in common physically and physiologically, therefore there might be competition over food system between two varieties.

There is little functional redundancy in keystone species. This indicates that no other organism would've been able to replace the species' ecological roles when it were to vanish from ecosystem. The environment would've been forced to undergo a significant transformation, allowing for the influx of new, potentially exotic species.

Predators have a significant impact on an environment. They influence the makeup of ecosystems by releasing pollen and nutrients from foraging. Also, they influence lower organisms in the food chain by regulating the dispersion, abundance, or variability of the prey, a phenomenon called as trophic cascades.

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Answer:

23.3 g/mol

Explanation:

The molar mass of 18.12 g of gas exerts a pressure of 3.05 atm on the walls of a 5.85 L container at 280 K is 23.3 g/mole.

Molar mass is the concentration of a substance that is present in a specific liquid. It is also called the concentration of a substance.

The molar mass can be calculated by the formula of an ideal gas:

PV = nRT

P is the pressure

V is the volume

n is the number of moles

R is the constant of gas.

T is the temperature.

The given amounts are the molar mass of 18.12 g.

The pressure is 3.05 atm.

The volume is  5.85 L

The temperature is 280 K

Putting the value in the equation

n = PV/RT = (3.05) (5.85) / (0.0821) (280) = 0.777 moles of gas

Molar mass = 18.12 g/0.777 moles = 23.3 g/mole

Thus, the Molar mass is 23.3 g/mole.

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Tectonic forces do not cause plates to slide over and under each other, to produce heat and pressure which forms igneous rocks

The rock cycle is a cycle which describes how the three basic rock types are related and how earth processes convert one rock type into another over geologic time.

Plate tectonic forces together with weathering and erosional processes, are responsible for the rock cycle.

Tectonic forces play the following roles in rock cycle:

Therefore, the statement that when plates slide over and under each other, the heat and pressure form igneous rocks is not True.

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Answer:

The equation is already balanced. There's an equal number of materials on each side of the equation.

Answer

The theoretical Van't Hoff factor i for C12H22O11 is 1

Explanation

The Van't Hoff factor, i, is the number of particles formed in a solution from one formula unit of solute.

The Van't Hoff factor, i, is a property of the solute. In an ideal solution, i does not depend on the concentration of the solution.

For a nonelectrolyte, like (C12H22O11), which does not separate into ions in solution, Van''t Hoff factor, i = 1 because 1 molecule of sucrose (C12H22O11) forms only one particle in solution.f

Answer:

c

Explanation:

i think soo. but not sure.

Answer:

The answer is D - 3.7 L.

When the partial pressure of carbon dioxide (PCO2) increases above 45 mm Hg (millimeters of mercury), it leads to a decrease in pH, causing the blood to become more acidic. This phenomenon is known as respiratory acidosis.

Respiratory acidosis occurs when there is an accumulation of carbon dioxide in the blood due to a respiratory dysfunction, such as hypoventilation or impaired gas exchange in the lungs. Normally, carbon dioxide is produced as a byproduct of cellular metabolism and is eliminated through exhalation. However, when the PCO2 levels rise above the normal range (35-45 mm Hg), it triggers a series of physiological responses to maintain acid-base balance.

An increase in PCO2 stimulates the central chemoreceptors in the brain, which leads to an increase in the respiratory rate and depth of breathing. This response attempts to remove excess carbon dioxide from the body. However, if the underlying cause of respiratory acidosis persists, the compensatory mechanisms become insufficient, and the pH of the blood decreases.

As the blood becomes more acidic, the concentration of hydrogen ions (H+) increases. This rise in H+ ions reduces the pH of the blood, making it more acidic. The decrease in pH can have various effects on the body, such as altering enzyme activity, affecting cellular function, and potentially leading to organ dysfunction if left untreated.

In summary, when the PCO2 levels increase above 45 mm Hg, the pH of the blood decreases, resulting in respiratory acidosis. This acidosis can disrupt normal physiological processes and require prompt medical attention to address the underlying cause and restore acid-base balance.

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Explanation:

. There are two types of observations: qualitative and quantitative.

The density of the magnetite sample would be 5.2g/cm^3.

A body's density is defined as its mass per unit volume. Density is a measurement that compares the amount of matter (denseness) a body has to its volume. It is the degree of consistency of a body measured by the quantity of mass per unit volume. It is the relationship between the mass of the substance or body and the amount of space it takes up. An object with much matter in a certain volume will have a high density.

Density = mass/volume

From the question;

mass = 42g

volume = 8.1cm^3

Density = 42/8.1

Density = 5.2g/cm^3

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The states of matter change to produce the same or the new substance. When yeast is added to hydrogen peroxide bubble of carbon dioxide is formed which indicates chemical change.

A chemical change is the formation of a new substance by the chemical alterations in the reactants. The yeast releases products of cellular respiration that react with hydrogen peroxide.

The reaction is exothermic as it releases heat and increases the temperature when measured by the thermometer. The Fizzing and bubbling occur when carbon dioxide reacts with H₂O₂ to produce a new substance.

Therefore, addition of yeast to hydrogen peroxide is a chemical change.

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Answer:

The type of change that took place is most likely a chemical change, due to the recordable reactivity of the hydrogen peroxide to the yeast granules in the experiment.

Explanation:

As stated in the question, the hydrogen peroxide started fizzing and bubbling in reaction to the yeast granules, which is already a sign of a chemical change. The question also states that there was an increase in temperature. This is another sign of a chemical change. Hope this helped (;

Answer:

The lack of heat

Explanation:

when vapor gets cold enough, it reverts back to a liquid, when liquid gets cold enough, it freezes into a solid.

The term "catalyst" best describes the role of platinum in the system.

Let us explore the role that platinum plays as a catalyst. Catalysts are defined as substances that speed up the rate of chemical reactions without changing their own mass or chemical properties in the process.

The amount of energy required to activate a process is reduced when catalysts are added. It is stated in the question that if the system incorporates platinum, then the amount of energy that is required is going to be lower. Therefore, platinum is functioning as a catalyst in this situation because it is lowering the required activation energy of the reaction.

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During cellular respiration, Kristine's cells undergo a series of metabolic processes to convert nutrients, such as glucose, into usable energy in the form of adenosine triphosphate (ATP). The cells extract energy from the nutrients and transfer it to ATP through a complex biochemical pathway.

First, glycolysis occurs in the cytoplasm, where glucose is broken down into two molecules of pyruvate. This process generates a small amount of ATP and high-energy electron carriers, such as NADH.

Next, if oxygen is present, the pyruvate molecules enter the mitochondria for further processing. The pyruvate is converted into acetyl-CoA, which enters the citric acid cycle (also known as the Krebs cycle). In the citric acid cycle, acetyl-CoA is further broken down, releasing more ATP, NADH, and FADH2, along with carbon dioxide as a byproduct.

The high-energy electron carriers (NADH and FADH2) produced in glycolysis and the citric acid cycle are then used in the electron transport chain, which occurs in the inner mitochondrial membrane. The electron transport chain transfers electrons from NADH and FADH2 to generate a large amount of ATP through oxidative phosphorylation.

Overall, cellular respiration allows Kristine's cells to efficiently extract energy from nutrients, enabling her to have the necessary energy for physical activities like running on the treadmill and lifting weights.

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Answer:

Number of atoms =1.806×10²⁴

Explanation:

You have the number of moles of Carbon tetrachloride which is n=3

And you are looking for number of atoms that are in the sample, which are represented by the letter "N"

The formula that has both number of moles(n) and number of atoms(N) is written as n=N/Na

Na is called the Avogadros number and it is equal to 6.08×10²³, it never changes(it is a constant)

So you will substitute the number of moles and the avogadros number to you formula, and the only unknown will be the number of atoms which you are looking for

NB: N does not represent the number of atoms only. It may also represent the number of particles or molecules...

Answer:

A mass and distance

Explanation:

It is a nucleophilic reducing agent that works best on polar multiple bonds such as C=O. Aldehydes can be converted to primary alcohols, ketones to secondary alcohols, carboxylic acids and esters to primary alcohols, amides and nitriles to amines using the LiAlH₄ reagent.

Any of a class of organic compounds characterized by one or more hydroxyl (OH) groups attached to an alkyl group's carbon atom (hydrocarbon chain). Alcohols are organic derivatives of water in which one of the hydrogen atoms has been replaced by an alkyl group, which is typically represented by the letter R in organic structures.

Ketones are a type of chemical produced by your liver when it breaks down fats. When you fast, exercise for long periods of time, or don't eat as many carbohydrates, your body uses ketones for energy. Low levels of ketones in the blood are not necessarily harmful.

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To obtain an aqueous solution with a pH of 7, we need to identify a substance that, when dissolved in 1.00 L of water, will result in a neutral pH. The substance that can achieve this is sodium chloride (NaCl).

The pH of a solution is a measure of its acidity or alkalinity, with pH 7 considered neutral. A neutral solution contains equal concentrations of hydrogen ions (H+) and hydroxide ions (OH-).

When substances dissolve in water, they can release or consume hydrogen ions, affecting the pH of the solution. Strong acids release H+ ions, making the solution acidic, while strong bases release OH- ions, making the solution basic.

In the case of sodium chloride (NaCl), it is a salt that dissociates into sodium ions (Na+) and chloride ions (Cl-) when dissolved in water. Neither Na+ nor Cl- ions react with water to release or consume hydrogen ions, so their presence does not affect the pH of the solution. As a result, when 0.40 mol of sodium chloride is dissolved in 1.00 L of water, it forms an aqueous solution with a pH of 7, as no additional acidic or basic components are introduced.

Therefore, to obtain an aqueous solution with a pH of 7, one should dissolve 0.40 mol of sodium chloride (NaCl) in 1.00 L of water.

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Answer:

Closed-toe shoes, long pants, a lab coat, safety glasses with side shields or splash goggles, and gloves.

Explanation:

Answer:

fractional bond orders

Explanation:

because fractional bond orders

Answer:

they explain the properties and structure of the compound which empirical molecular formulars cannot explain

The structural formulas are good for depicting polymers because polymers are the chemical compounds attached to the long chain with ac other which is impossible to represent other than the structural formula.

The structural formulas are the graphic representation or diagrammatical representation of the structure of any chemical formula in organic and inorganic chemistry they are mostly used.

In Polymers, they are long chains of chemicals compound can be shown diagrammatically or graphically to understand the attachment t of the bonds within them which signifies the physical properties too.

Therefore, polymers are the chemical compounds attached to the long chain with ac other which is impossible to represent other than the structural formula which is why structural formulas are good for depicting polymers.

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The definitions for solid and fluids that include the ability of some solids to flow are:

Solids are substances whose molecules are tightly bound by strong forces of attraction, except for granular solids which have some abilities to flow because of a comparatively weaker force of attraction.

Fluids are substances whose molecules have weak forces of attraction. Hence the abilities of fluids to flow

Solids are substances whose molecules are tightly bound together. Molecules of solids have low Kinetic Energy. Since the molecules are tightly packed, solids have definite shape and volume. However granular solids have lesser force of attraction than other solids, and their molecules have slightly higher Kinetic Energy, hence their ability to flow.

Liquids are substances whose molecules have forces of attraction that are weaker than that if solids. This means that they are more loosely bound than the molecules of solids. Liquids have definite volume but not definite shape. Liquids flow from higher to Lower level.

Molecules of gases are bound by very weak forces of attraction. Hence they have no definite shape and volume. They have a random and haphazard movement.

Therefore, the definitions for solid and fluids that include the ability of some solids to flow are:

Solids are substances whose molecules are tightly bound by strong forces of attraction, except for granular solids which have some abilities to flow because of a comparatively weaker force of attraction.

Fluids are substances whose molecules have weak forces of attraction. Hence the abilities of fluids to flow

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The atom economy of the reaction of the production of hydrogen is 8.33%.

The atom economy of a reaction is a measure of the percentage of reactants in a reaction that forms useful products.

Considering the given reaction:

The product is hydrogen.

mass of hydrogen = 2 * 2.0 g

mass of hydrogen = 4 g

mass of reactants = 12.0 + 2 * 18.0

mass of reactants = 48.0 g

Atom economy = 4/48 * 100%

atom economy = 8.33%

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Explanation:

NaOH + HCl → H2O and NaCl.

Answer:

(I) \( m_{ZnCl_{2}} = 34.07 g \)  

(II) \( \% y = 176.4 \% \)

(III) The presence of impurities in the 32.70 g of zinc will support the student's percentage yield.

Explanation:

The reaction is:

Zn + 2HCl → ZnCl₂ + H₂

(I) To find the number of moles of ZnCl₂ we need to calculate the number of moles of the reactants.

\( n_{Zn} = \frac{m}{A} \)

Where:

m: is the mass

A: is the standard atomic weight  

\( n_{Zn} = \frac{32.70 g}{65.38 g/mol} = 0.50 moles \)

\( n_{HCl} = \frac{18.23 g}{36.458 g/mol} = 0.50 moles \)

If 1 mol of Zn reacts with 2 moles of HCl, the number of moles of Zn needed to react with 0.50 moles of HCl is:              

\( n_{Zn} = \frac{1 mol Zn}{2 moles HCl}*0.50 moles HCl = 0.25 moles \)  

Then, the limiting reactant is HCl. Now, we can find the number of moles of ZnCl₂ by knowing that 2 moles of HCl produce 1 mol of ZnCl₂.

\( n_{ZnCl_{2}} = \frac{1 mol ZnCl_{2}}{2 moles HCl}*0.50 moles = 0.25 moles \)    

Finally, the mass of ZnCl₂ that he has produced is:            

\( m_{ZnCl_{2}} = n_{ZnCl_{2}}*M = 0.25 moles*136.286 g/mol = 34.07 g \)  

(II) The percentage yield can be found with the following equation:

\( \% y = \frac{m_{e}}{m_{t}} \times 100 \)

Where:      

\( m_{e}\): is the experimental mass = 60.1 g

\( m_{t}\): is the theoretical mass = 34.07 g

Hence, the percentage yield is:  

\( \% y = \frac{60.1 g}{34.07 g} \times 100 = 176.4 \% \)

(III) The presence of impurities in zinc will explain why the percentage yield is greater than 100% because the mass of the impurities will make the mass of zinc bigger than its mass without impurities. If there were no impurities in the zinc, its mass would be smaller and thus the percent yield.

I hope it helps you!                  

Answer:

B

Explanation:

Answer: They are called substances and mixtures

Explanation:

Answer:

pure substances and mixtures.

Explanation:

Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components. A chemical substance is composed of one type of atom or molecule.

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sedimentary rocks are rocks that are combined from other rocks pressed into one.

20,000 is the correct answer

What is empirical formula ?

The empirical formula of a chemical compound is the simplest ratio of the number of atoms of each element present in a compound. It represents the smallest whole number ratio of the elements in a compound and gives an indication of the relative proportions of the elements. The empirical formula is not necessarily the same as the molecular formula, which represents the actual number of atoms in a molecule. The molecular formula may be a multiple of the empirical formula and can be determined by analyzing the compound's molecular weight.

Multiply each by 20,000, then we have

C: 2.48925 x 20,000 = 49,785

H: 3.9901 x 20,000 = 79,802

O: 1.000 x 20,000 = 20,000

Multiply each element by in order to have them all reach the smallest whole number will be 20,000.

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Answer: The answer is 2

Explanation: