Give reasons. a. Aquatic plants have air spaces in their body​

Propanedioic acid ((CH₃)₂C(O)COOH), oxalic acid (HO₂C-C(O)OH), and formic acid (HCOOH) are among the carboxylic acids created after the ozonolysis of ccccCH₃CH₂COOH.

In an organic redox reaction known as ozonolysis, ozone is used to break unsaturated carbon-carbon bonds (double or triple bonds) in alkenes, alkynes, or azo compounds.

The molecule with the SMILES string ccccCH₃CH₂COOH can undergo ozonolysis to form a mixture of products. The ozonolysis reaction involves the cleavage of the carbon-carbon double bond by ozone (O₃) to form ozonide intermediates, which can then react further to form various products.

The ozonolysis of ccccCH₃CH₂COOH would result in the formation of several carboxylic acid products, including propanedioic acid ((CH₃)₂C(O)COOH), oxalic acid (HO₂C-C(O)OH), and formic acid (HCOOH). The exact ratio and amounts of these products depend on the specific conditions of the reaction, such as the concentration of ozone, temperature, and presence of any catalysts.

Therefore, the carboxylic acids produced in the ozonolysis of ccccCH₃CH₂COOH include propanedioic acid ((CH₃)₂C(O)COOH), oxalic acid (HO₂C-C(O)OH), and formic acid (HCOOH).

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If we use 1.6 ml of pure ethyl acetate instead of a mixture of 0.8 ml of ethyl acetate and 0.8 ml of hexane as the reaction solvent, means that the reaction would take place in a more polar solvent than otherwise.

Ethyl acetate is a more polar solvent than hexane. Since the experiment calls for a Craig tube, we know that crystallization is an important component of the experiment.

This process is highly sensitive to the polarity difference between the solute (reaction product) and solvent. Therefore, we would expect more difficulty completing the experiment's crystallisation step when pure ethyl acetate is used as the solvent.

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The correct statement about variation is: "All new alleles - i.e., genetic variation - are the result of DNA mutations."

Alleles are alternative forms of a gene that can exist at a specific locus on a chromosome. Genetic variation arises from the presence of different alleles in a population. These new alleles, which contribute to genetic variation, are indeed the result of DNA mutations. Mutations are changes that occur in the DNA sequence, either through substitutions, insertions, deletions, or other alterations. These mutations can introduce new genetic variants or alter existing ones, leading to the generation of new alleles and contributing to genetic diversity within a population.

Therefore, the statement accurately reflects that new alleles and genetic variation are indeed the result of DNA mutations.

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Answer:

Nitrogen is an inert gas — meaning it doesn't chemically react with other gases — and it isn't toxic. But breathing pure nitrogen is deadly. That's because the gas displaces oxygen in the lungs. Unconsciousness can occur within one or two breaths, according to the U.S. Chemical Safety and Hazard Investigation Board.

Answer:

because it is an insert gas and it is very dangerous for ear and our nose

At pH 1.0, threonine would be in its fully protonated form.

The structure would have a positively charged amino group (NH3+) and a carboxyl group (COOH). The side chain would be an OH group attached to a CH3 group. The structure would be:

H3N+ - CH(COOH)(CH3) - CH(OH) - R

where R represents the remaining part of the molecule.

Threonine is one of the 20 amino acids that make up proteins in living organisms. At pH 1.0, threonine would be in its fully protonated form because at this pH, the environment is highly acidic, and the amino group (NH2) and carboxyl group (COOH) on the threonine molecule are fully protonated, resulting in a net positive charge on the molecule.

The chemical formula for threonine is C4H9NO3, and it has a chiral center, which means it can exist in two different forms, D-threonine and L-threonine.

The structure of threonine at pH 1.0 would have a positively charged amino group (NH3+) and a carboxyl group (COOH), which are attached to a central carbon atom.

The side chain of threonine is an OH group attached to a CH3 group, which is also attached to the central carbon atom. The remaining part of the molecule, represented by R, could be any organic molecule or functional group that could be attached to the central carbon atom of threonine.

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The number of moles of the KCl is  2.1 moles.

We know that the boling point of the solution is a colligative property and the the Vant Hoff factor of the solution in this case would be btwo because of the number of the particles that are in KCl.

We know that we can be able to use the formula;

ΔT = K m i

Given that

ΔT = 2.14°C

K = 0.512oC/m

i = 2

m = ?

Then we have that;

m = ΔT/Ki

m = 2.14/0.512 * 2

m = 2.1 m

Then

m = Moles of solute/Mass of solution

2.1 = m/1

m = 2.1 moles

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The PESTLE and SWOT analyses provide a comprehensive assessment of the external and internal factors influencing the Harvard case "Clean Edge Razor: Splitting Hairs in Product Positioning."

The PESTLE analysis examines the external factors that may impact the case. Politically, regulations on product safety and environmental sustainability could affect the razor industry. Economically, consumer purchasing power and economic trends may impact the demand for high-end razors. Sociocultural factors, such as grooming habits and preferences, influence consumer behavior. Technological advancements, such as electric razors and online shopping, pose opportunities and challenges. Legal factors include intellectual property rights and advertising regulations. Environmental considerations involve sustainability and eco-friendly practices.

The SWOT analysis evaluates the internal strengths and weaknesses of the case. Strengths may include the Clean Edge brand reputation and innovative product features. Weaknesses could involve high manufacturing costs or limited market presence. Opportunities may arise from market growth and expanding into new segments. Threats may come from intense competition and changing consumer preferences.

By conducting both analyses, the case can gain insights into the broader industry landscape, identify potential risks and opportunities, and assess its own internal capabilities. This holistic understanding aids in making informed decisions and formulating effective strategies for positioning the Clean Edge Razor product.

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Answer:

Moles of magnesium produced via this electrolysis is 3.8798 moles.

Explanation:

we know that the relation between current and charge is given by

I=Q/t

 where

     I=Current consumed

     Q=amount of charge produced

     t=time

Given,

amount of current passed (I)=13A

Total time (t)= 16 h

moles of magnesium=?

we know the electrolysis equation of magnesium chloride'

     Mg+2 + 2e- -------> Mg

  which says that, 2 coloumbs of charge required to produce 1 mole of magnesium.

we can caluclate the charge produced from the given data using the relation I=Q/t

13A=Q/16*60*60

Q=748,800 coloumbs

  =748,800/96500 F                  (1F=96500C)

Q=7.76 F

from the electrolysis equation, 2F charge produces 1 mole of magnesium.Similarly,

moles of magnesium produced by 7.76F charge =7.76/2=3.387 moles

20%

The codeine percentage strength of the solution is 20%

Mass of solute times strength of solution(g) Amount of the solution(L)

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Answer: Protons and Electrons

Explanation:

Atoms are made up of 3 subatomic particles.

Protons (Positive Charge)

Electrons (Negative Charge)

Neutrons (Neutral Charge)

The number of protons must be equal to that of electrons in order for the overall charge to be neutral.

Answer:

angle

Explanation:

let us see the sun moves an a angle

An Arrhenius acid is a substance that dissociates in water to form hydrogen ions or protons.

An Arrhenius acid increases the number of\(H^+\) ions in the water.

According to the Arrhenius theory, a substance which has hydrogen atom and can easily give hydrogen ion or proton in its aqueous solution is called as Arrhenius acid.

For example, when hydrochloric acid is dissolved in water, it forms chloride ion (\(Cl^-\)) and hydronium ion (\(H_3O^+\)).

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Answer:

includes the coefficients that are needed for balancing the equation.

Explanation:

A chemical equation can be used to solve stoichiometry problems provided that it includes the coefficients that are needed for balancing the equation.Hence, Option (C) is Correct.

An equation that has an equal number of atoms of each element on both sides of the equation is called a balanced chemical equation, i.e., the mass of the reactants is equal to the mass of the products.

Therefore, A chemical equation can be used to solve stoichiometry problems provided that it includes the coefficients that are needed for balancing the equation.Hence, Option (C) is Correct.

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The chemical formula for this compound is N₅ Cl₁₀ P₅

First, find out how many grams of each element are in 1 mole of the compound. We can do this because we have the molar mass of the compound and the mass percent of each element.

Now that we know the number of grams of each element per mole of the compound, we can use the molar mass of each element to find the number of moles of each element per mole of the compound.

Therefore, the chemical formula for this compound is N₅ Cl₁₀ P₅

We can double-check by making sure that the compound with this formula has the same molar mass as the one given in the problem

(5*14) + (35,45*10) + (31*5) = 70+354,5+155 = 579,5

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Empirical formula tells us the relative ratios of different atoms in a compound.

The chemical formula for a compound obtained by composition analysis is always the empirical formula.

How to calculate Empirical formula:

Linalyl acetate (bergamot oil):

              Carbon               Hydrogen                  Oxygen

                73.41 %                   10.29 %                  16.30 %

             73.41 / 12               10.29 / 1                   16.30 / 16

               6.11                          10.29                        1.01

            6.11 / 1.01                10.29 / 1.01                1.01 / 1.01

                 6                            10                                1

          Empirical formula : C₆H₁₀O

Thus we can conclude that empirical formula of linalyl acetate is  C₆H₁₀O

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The empirical formula for Linalyl acetate expresses the relative proportions of different atoms in a compound.

Linalyl acetate is a phytochemical found in a variety of flowers and spice plants. It is an important component of bergamot and lavender essential oils. It is the linalool acetate ester, and the two are frequently found together.

Hence, the empirical formula describes the relative proportions of different atoms in a compound. The chemical formula for a compound obtained through composition analysis is always the empirical formula.

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HFCs (hydrofluorocarbons) can be used as a replacement for CFCs (chlorofluorocarbons) due to their lower environmental impact. One example of a HFC compound is R-134a (1,1,1,2-tetrafluoroethane). While both HFCs and CFCs are used as refrigerants, HFCs have a significantly reduced ozone depletion potential compared to CFCs, making them a more environmentally friendly choice.

HFCS stands for high-fructose corn syrup and is a sweetener commonly used in processed foods and drinks. On the other hand, CFCs are chlorofluorocarbons, which were once widely used in refrigeration and air conditioning systems. However, due to their harmful effects on the ozone layer, they were phased out in the late 20th century. HFCS cannot replace CFCs in refrigeration and air conditioning systems because they are entirely different compounds. HFCs, or hydrofluorocarbons, are a class of refrigerants that have replaced CFCs. HFCs do not contain chlorine, which makes them much less harmful to the ozone layer and the environment. Therefore, an HFC is a compound that could potentially replace a CFC in refrigeration and air conditioning systems.

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Answer:

a. 21.7824 g

b. 0.2362 g

c. 31.5273 g

Please see the answers in the picture attached below.

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

The mass of solute required in each case can be obtained form the stoichiometry of the reaction.

We know that the mass of each solution can be obtained from the relation;

mass/molar mass = concentration × volume

mass = concentration × volume × molar mass

a)

mass =  0.125 M  ×  1.00 L ×  174 g/mol = 21.75 g

b) mass = 0.015 M  × 375 /1000 × 42 g/mol = 0.24 g

c) mass = 0.350 M × 500/1000 × 180 g/mol =31.5 g

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Answer:

Radiation is the transfer of energy by waves, and conduction is the transfer of heat through contact with air.

Explanation:

Conduction is the transfer of thermal energy through direct contact.  Radiation is the transfer of thermal energy through thermal emission.

Answer:

na atom

Explanation:

which is sodium because it has 11protons -10 electrons =+1.Hence the valency of sodium is 1

Answer:

Alkali metals are highly reactive metals. These metals are that much reactive that they can even explode in the air as well. When alkali metals and water react with each other, there is a formation of metal hydroxide and the evolution of hydrogen gas.

The general representation of metal is A. so, the general equation for the reaction of an alkali metal with water is given below.

2A(solid)+2H2O(liquid) -------> 2AOH(aqeous)+H2(gas)

Answer:

the rate of heat transfer is directly proportional to the mass flow rate.

Explanation:

There is an elementary equation from basic thermodynamics that states that the rate of heat transfer (Q) equals the mass flow rate (M) times a Constant (the specific heat of water) times the Delta T (fluid temp out minus fluid temp in): Q = M x C x Delta T In other words, the rate of heat transfer is directly proportional to the mass flow rate.

An atom is an indivisible particle of the matter and it is the fundamental building blocks of the matter. Some examples of atoms are sodium atom, fluorine atom, etc. It is the smallest unit of matter.

The elements are defined as the substance which is made up of same kind of atoms and that cannot be broken down into simpler form by any physical or chemical methods. Carbon is an element.

Carbon - C = 1 C atom

Oxygen molecule - O₂ = 2 'O' atoms

Methane - CH₄ = 1 'C' and 4 'H' atoms

Iron - Fe = 1 'Fe' atom

Glucose - C₆H₁₂O₆ = 6 'C', 12 'H' and 6 'O' atoms

Hydrogen chloride - HCl

Sulfur dioxide - SO₂ = 1 'S' and 2 'O' atoms

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Explanation:

I guess since it has greater number on ions it won't react as heavily as the others, I'm going based off of atoms.

The formula for cobalt(ii) chloride is CoCl2, which means there are two chloride ions in the compound.

The Roman numeral ii in the name indicates that cobalt has a charge of +2, while the chloride ion has a charge of -1. In order for the compound to be neutral, there must be two chloride ions for every one cobalt ion.

When writing the formula for an ionic compound, the charges of the ions involved must be taken into account. In the case of cobalt(ii) chloride, the cobalt ion has a charge of +2, while the chloride ion has a charge of -1. To make the compound neutral, the number of positive charges (from the cobalt ion) must equal the number of negative charges (from the chloride ions).
To achieve this balance, two chloride ions are needed for every one cobalt ion. This means that the formula for cobalt(ii) chloride is CoCl2, indicating that there are two chloride ions for every one cobalt ion.
In summary, the formula for cobalt(ii) chloride contains two chloride ions.

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Answer:

1 - Biometric

2- Unique

3 - Skin cells

4 - The latent

5 - basal

6 - buckling

Explanation:

Drug interaction is a situation where the effect of a drug is altered when administered with another drug.

Drug interaction is a situation where the effect of a drug is altered when administered with another drug. The result may be positive or negative depending on the combination of drugs used. Some drugs may enhance the effect of a second drug substantially. In this case, drug A has the potential to increase the effect of drug B.

Drug interactions may occur at any stage of the drug cycle, including administration, distribution, metabolism, and excretion. The interaction between two drugs can lead to increased, decreased, or a new effect that was not present in either of the drugs alone. Therefore, it is essential to take caution when administering multiple drugs to a patient, as it may have adverse effects.

The healthcare provider should be well informed about the drugs that the patient is currently taking, including herbal supplements and over-the-counter drugs. By doing so, they can avoid or manage drug interactions that can have negative effects on the patient's health. It is essential to report any adverse reactions that the patient may experience when taking multiple drugs concurrently.

In conclusion, drug interaction is an important consideration when administering drugs to a patient. Healthcare providers must ensure that they are aware of all the drugs that a patient is taking to avoid or manage drug interactions that can cause adverse health effects. They should also provide information to the patient on the potential risks and benefits of combining drugs.

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NH4NO3 The molar mass is 80.04336 g/mol

N2O5 The molar mass is 108.01.

NaCN The molar mass is 49.00717 g/mol

(NH4)2SO4 The molar mass is 132.139 g/mol .

Molar masses

The mass in grams of one mole of a chemical is its molar mass.

1) What is the mass of 5.6 L of CO2 gas at STP?

PV = nRT is the ideal gas equation, which links pressure (P), volume (V), and absolute temperature (T).

where R = 8.314 Jmol K-1, the universal gas constant.

1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 atm = 1.1310 5 Nm 2

V=nRT/P =1.8.14.273/(1.013.10 5) =0.0224 m 3

2.24 liters

As a result, a gas's molar volume at STP is 22.4 litres.

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