What are each symbiotic relationships?

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To determine the hydroxide ion concentration in a solution of hydrochloric acid (HCl), one needs to consider that HCl is a strong acid that completely dissociates in water, forming hydronium ions (H3O+) and chloride ions (Cl-).. the hydroxide ion concentration in the solution of 0.00014 M HCl is approximately 7.14 x \(10^-^1^1\) M.

Here the calculation is below<

[H3O+] = 0.00014 M [OH-] = [H3O+] (since the solution is neutral)

Using Kw = [H3O+][OH-], one can substitute the values:

(1.0 x \(10^-^1^4\)) = (0.00014)([OH-])

Rearranging the equation to solve for [OH-]:

[OH-] = (1.0 x \(10^-^1^4\)) / (0.00014)

Calculating the value:

[OH-] ≈ 7.14 x \(10^-^1^1\) M

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Answer:Attemted Failed

Maybe try to search

In a different way like:

what is the ingredient of cake

Instead of

how to make Cake

The significance of carbon bonding in biological molecules because it enables the synthesis of a variety of chemical compounds that are necessary for the survival and proper functioning of all living things.

Because it is the foundation for the structural and functional variety of biological molecules, carbon bonding plays a crucial role in these molecules. Carbon is a remarkable element that may be used to make a diverse range of chemical compounds because it can form stable covalent bonds with so many different elements, including other carbon atoms, hydrogen, oxygen, nitrogen, sulphur, and phosphorus. Carbon-based compounds make up the majority of biological molecules, including proteins, lipids, nucleic acids, and carbohydrates. These molecules are important for all living organisms to function and live.

Carbohydrates like sugars and starches are the primary energy source for all living things. Their structure is composed of covalently bonded simple carbohydrates like glucose and fructose. Fats and oils are lipids that are essential for the development of cell membranes as well as energy storage and insulation. Covalent bonds hold the fatty acids that make up their structure together. Nucleic acids like DNA and RNA make up the genetic material found in all living organisms. They are composed of nucleotides, which are connected by covalent bonds and are in charge of storing and transmitting genetic information. Proteins are essential for structure, regulation, and catalytic reactions in living things. The amino acids that makeup them are joined together by peptide bonds in their construction. 

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Okay, let's solve this step-by-step:

1 foot = 0.305 meters (conversion factor)

16 feet = 16 * 0.305 meters

= 4.848 meters

So, 16 feet = 4.848 meters

Answer:

1.89

Explanation:

238cal = J joules

450cal = xJ joules

\( \frac{450}{238} = \frac{xj}{j} \)

1.89 = x

450cal = 1.89J joules

The three sentences about the micro ecosystem have been given below

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Answer:

Pulley

Explanation:

You can't the piano up the stairs, you need to something to bring it up

Answer:

deuterium oxide

Centimeters and millimeters are both interconvertible units to measure length. The conversion factor is as follows:

1 centimetre = 10 millimetres

This means that if a copper wire is 180cm long, the wire would be;

180 × 10 = 1800mm long

Also, the number of 40 mm segments of wire that can be cut from the length is calculated as follows:

1800mm/40mm = 45

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Answer: The molality of naphthalene solution is 0.499 m

Explanation:

Density is defined as the ratio of mass and volume of a substance.

\(\text{Density}=\frac{\text{Mass}}{\text{Volume}} \) ......(1)

Given values:

Volume of carbon tetrachloride = 500 mL

Density of carbon tetrachloride = 1.60 g/mL

Putting values in equation 1, we get:

\(\text{Mass of carbon tetrachloride}=(1.60g/mL\times 500mL)=800g\)

Molality is defined as the amount of solute expressed in the number of moles present per kilogram of solvent. The units of molarity are mol/kg. The formula used to calculate molarity:

\(\text{Molality of solution}=\frac{\text{Given mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Mass of solvent (in g)}}\) .....(2)

Given values:

Given mass of naphthalene = 51.2 g

Molar mass of naphthalene = 128.17 g/mol

Mass of solvent = 800 g

Putting values in equation 2, we get:

\(\text{Molality of naphthalene}=\frac{51.2\times 1000}{128.17\times 800}\\\\\text{Molality of naphthalene}=0.499m\)

Hence, the molality of naphthalene solution is 0.499 m

A tablet weighing 0.940 g was dissolved in dilute sulphuric acid made up to 250 cm³ with water. 25.0 cm³ of this solution was titrated with 0.00160 M K\(_2\)Cr\(_2\)O requiring 32.5 cm3 of the  K\(_2\)Cr\(_2\)O. 4.17% is the percentage by mass of  \(Fe^{2+}\) in the tablet.

Mass percent is a means to describe a component in a specific combination or to convey a concentration. The mass percentage used to describe the solution composition indicates the mass of solute contained in a given mass of solution. The solute's concentration is specified in terms of mass or moles.

6\(Fe^2+\) + \(Cr_2O_7^{2-}\) + 14\(H^+\) → 6\(Fe^{3+}\) + 2\(Cr^{3+}\)+ 7H\(_2\)O

32.5 cm³x 0.00160 M = 0.052 g of K\(_2\)Cr\(_2\)O\(_7\)

0.052 g / 294.18 g/mol = 0.000177moles of K\(_2\)Cr\(_2\)O

0.000177 mol / 6 = 0.0000295 mol moles of \(Fe^{2+}\)

0.0000295 mol / 0.025 L = 0.00118 M  of  \(Fe^{2+}\)

0.00118 M x 55.845 g/mol x 0.025 L = 0.0392 g of  \(Fe^{2+}\)

0.0392 g / 0.940 g x 100% = 4.17% percentage by mass of  \(Fe^{2+}\)

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Answer:

1.46 X 10^24 fu Na2CO3

Explanation:

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 1.42×10²⁴ formula units are present in 256.3 g sodium carbonate.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

Mathematically,

mole =given mass ÷ molar mass

Molar mass of 1 mole of sodium carbonate= 107.87 g/mol

mass of sodium carbonate=256.3 g

mole =256.3 g ÷ 107.87 g/mol

        =2.37moles

number of formula units of sodium carbonate=number of moles of sodium carbonate× 6.022×10²³

number of formula units of sodium carbonate=2.37moles× 6.022×10²³

number of formula units of sodium carbonate=1.42×10²⁴

Therefore, 1.42×10²⁴ formula units are present in 256.3 g sodium carbonate.

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Answer: Nothing will happen

Explanation:

Elements want to fill their valence shell with electrons (8).

Referring to both of the table below we will know that the element with that electron configuration is Neon (Ne). It is on the far right side of the periodic table so it contains all 8 electrons in its valence shell. The elements on the right side of the periodic table are called noble gases and are not reactive because they have the maximum number of electrons.

A single electron from the outermost shell of this element will move into the outermost shell of the atom with seven electrons.Nothing will happen in these state.

Electron configurations define the arrangement of electrons around an atom's nucleus. Lithium, for instance, contains two electrons in the 1s subshell and one electron in the 2s subshell, according to its electron configuration, 1s22s1.

We may determine that Neon is the element with that electron configuration by looking at both of the tables below (Ne). It has all 8 electrons in its valence shell since it is on the extreme right side of the periodic table.

Noble gases are the elements on the right side of the periodic table that contain the most electrons and are thus non-reactive.

Thus, Electronic configuration an element is 1s22s22p6, it is stable.

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Answer:

the answer is b. 2

hope it helps

Answer:

Ionic compounds conduct electricity when molten (liquid) or in aqueous solution (dissolved in water), because their ions are free to move from place to place. Ionic compounds cannot conduct electricity when solid, as their ions are held in fixed positions and cannot move

Explanation:

Answer:

Warm and cold ocean currents can affect the climate of an area along the coast if the winds blow in from the ocean. Warm ocean currents heat the air above the water and carry the warm air to the land, increasing the temperature of the coastal region.

Explanation:

Ocean currents are important to coastal regions for a number of reasons.

Distribute heat. Ocean currents distribute heat around the globe, which helps to moderate the climate in coastal regions. For example, the Gulf Stream brings warm water from the Gulf of Mexico to the coasts of Europe, which helps to keep Europe's climate warmer than it would be otherwise.

Transport nutrients. Ocean currents transport nutrients from the ocean's depths to the surface, which supports marine life. For example, the California Current brings nutrients from the deep ocean to the surface, which supports a rich marine ecosystem off the coast of California.

Diversify marine life. Ocean currents help to diversify marine life by transporting different species to different parts of the ocean. For example, the Kuroshio Current brings warm water from the western Pacific Ocean to the eastern Pacific Ocean, which has helped to diversify the marine life in this region.

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Answer:

A)The spring scale has a high level of precision and a low level of accuracy.

Explanation:

Hope it works for u guys

Answer:

The answer should be A

Answer:

   a) An element composed of atoms.

Explanation:

Ionic compounds are compounds composed of ions, charged particles that form when an atom. (or group of atoms) gains or loses electrons,There may or may not be more than one of each element. A diatomic compound (or diatomic molecule) contains two atoms, which may or may not be the same.

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Answer:

There may or may not be more than one of each element. A diatomic compound (or diatomic molecule) contains two atoms, which may or may not be the same.Ionic compounds are compounds composed of ions, charged particles that form when an atom. (or group of atoms) gains or loses electrons.

Explanation:

d)A covalent compound (composed of molecules made

from more than one type of atom)

The time (in years) taken for only 10 mg to remain is 14.84 billion years

N × 2ⁿ = N₀

10 × 2ⁿ = 100

Divide both side by 10

2ⁿ = 100 / 10

2ⁿ = 10

Take the log of both side

Log 2ⁿ = Log 10

nLog 2 = Log 10

Divide both side by Log 2

n = Log 10 / Log 2

n = 3.32

How to determine the time (in years)

t = n × t½

t = 3.32 × 4.47

t = 14.84 billion years

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Answer:true

Explanation:

It would take approximately 830 seconds, or 13.8 minutes, for the reactant concentration to reach 15% of its initial value.

To calculate the time it takes for the reactant concentration to reach 15% of its initial value, we can use the formula:

N = N0 * (1/2)^(t/t1/2),

where N is the final concentration, N0 is the initial concentration, t is the time elapsed, and t1/2 is the half-life of the reaction.

We want to find the time it takes for the concentration to reach 15% of its initial value, which means that N/N0 = 0.15. Substituting these values into the formula, we get:

0.15 = 1 * (1/2)^(t/250)

Taking the logarithm of both sides, we get:

log(0.15) = (t/250) * log(1/2)

Solving for t, we get:

t = 250 * (log(0.15) / log(1/2))

Using a calculator, we find that t ≈ 830 seconds.

Therefore, it would take approximately 830 seconds, or 13.8 minutes, for the reactant concentration to reach 15% of its initial value.

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Answer:

a

Explanation:

Mass number = No of protons + No of neutrons

Atomic number = No of protons

Mass number = 46 (from question)

Atomic number of Ca = 20

therefore:

46 = 20 + no of neutrons

no of neutrons = 26

The extremophile that has evolved in conditions of extreme drought is the xerophile, while the extremophile that has evolved in conditions of extreme salt is the halophile.

Extremophiles are organisms that thrive in extreme environments, where most other life forms cannot survive. They have developed unique adaptations to withstand and thrive in these extreme conditions. Two types of extremophiles specifically adapted to different extreme environments are xerophiles and halophiles.

Xerophiles are extremophiles that have evolved to survive in conditions of extreme drought. They are adapted to environments with very low water availability or high water stress. These organisms have developed mechanisms to prevent water loss, such as efficient water retention and protection of cellular structures. Xerophiles can be found in desert environments and other arid regions.

On the other hand, halophiles are extremophiles that have evolved to live in conditions of extreme salt concentration. They are adapted to environments with high salinity, such as salt flats, salt lakes, and hypersaline environments. Halophiles have specialized adaptations to cope with the osmotic stress caused by high salt concentrations. They have enzymes and transport proteins that function in high-salt environments and can maintain osmotic balance within their cells.

In summary, xerophiles have evolved in conditions of extreme drought, while halophiles have evolved in conditions of extreme salt. These extremophiles showcase remarkable adaptations to thrive in their respective harsh environments.

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b) the nucleus comtains protons and neutrons and surrounded by electrons

Refluxing a solvent using a water condenser provides a safer and more controlled environment for a chemical reaction to occur, increasing the chances of a successful outcome.

Refluxing a solvent using a water condenser is necessary because it provides a controlled environment for the reaction to occur. When a reaction mixture is heated in an open flask, the solvent can easily evaporate, causing the reaction to proceed at a different rate than desired or even stop altogether. Additionally, volatile or hazardous compounds can escape into the atmosphere, posing a safety risk.

In a reflux setup, the water condenser acts as a barrier, preventing the solvent from evaporating and also trapping any volatile compounds that may be produced during the reaction. The water flowing through the condenser helps to cool the reaction mixture, preventing it from overheating and potentially causing a dangerous runaway reaction. By controlling the temperature and limiting evaporation, refluxing helps to ensure that the reaction proceeds at a predictable and controlled rate, leading to a higher yield of product.

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Answer:

That's correct! Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose. Water is a crucial component of photosynthesis. Here's a breakdown of the process you mentioned:

Water Absorption: Plants absorb water from the soil through their roots. Water is transported from the roots to the leaves through specialized tissues called xylem.

Photosynthesis in Leaves: Within the leaves, specialized structures called chloroplasts contain a pigment called chlorophyll, which captures light energy from the sun.

Carbon Dioxide Uptake: Carbon dioxide (CO2) from the atmosphere enters the leaves through tiny pores called stomata. These openings also allow water vapour to exit the plant in a process known as transpiration.

Photosynthetic Reactions: In the presence of light energy, water molecules in the chloroplasts undergo a process called photolysis. This means they are broken apart into hydrogen ions (H+), electrons (e-), and oxygen (O2). The released oxygen is a byproduct of photosynthesis and is released into the atmosphere.

Formation of Glucose: The hydrogen ions and electrons produced during photolysis are used in a series of chemical reactions known as the Calvin cycle. Within the chloroplasts, carbon dioxide (CO2) combines with the hydrogen ions and electrons to form glucose (C6H12O6).

Other Uses of Glucose: Glucose serves as the primary source of energy for the plant. It is used for various metabolic processes, growth, and the production of other organic compounds needed by the plant.

Overall, photosynthesis is a vital process for plants as it allows them to convert light energy, water, and carbon dioxide into oxygen and glucose, which are essential for their survival and growth.

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Maximum wavelength of light capable of dissociating the f-f bond is 7.6245 nm.

Wavelength related to bond dissociation energy is calculated by first calculating the energy required to break one f-f bond which is calculated as,

energy required to break a bond=bond energy/Avogadro's number

In this case which is equal to,157×10³/6.022×10²³=2.6071×10\(^-19\) J.

Now to calculate wavelength, Planck's equation is used which is,

E=hc/λ

∴λ=6.626×10\(^-34\)×3×10⁸/2.6071×10\(^-19\)

=7.6245×10\(^-7\) m or 7.6245 nm

Thus, the maximum wavelength of light capable of dissociating the f-f bond in one molecule of fluorine is 7.6245 nm.

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The atomic ratio of carbon to oxygen in carbon monoxide (CO) is 1:1, and the atomic ratio of carbon to oxygen in carbon dioxide (CO₂) is 2:1.

Firstly, we can analyze the decomposition of carbon monoxide (CO) and carbon dioxide (CO₂) to determine the atomic ratios involved.

Let's denote the atomic ratio of carbon to oxygen in carbon monoxide as x, and the atomic ratio of carbon to oxygen in carbon dioxide as y.

According to the given data;

Decomposition of carbon monoxide (CO);

Oxygen produced = 3.36 g

Carbon produced = 2.52 g

We know that the atomic mass of carbon is 12 g/mol, and the atomic mass of oxygen is 16 g/mol. Using these values, we can calculate the number of moles for each element;

Number of moles of oxygen = mass / atomic mass = 3.36 g / 16 g/mol = 0.21 mol

Number of moles of carbon = mass / atomic mass = 2.52 g / 12 g/mol = 0.21 mol

Since the atomic ratio of carbon to oxygen in carbon monoxide is x, we can write the following equation;

0.21 mol C / (0.21 mol O) = x

Simplifying the equation, we have;

x = 1

Therefore, the atomic ratio of carbon to oxygen in carbon monoxide is 1:1.

Decomposition of carbon dioxide (CO₂);

Oxygen produced = 9.92 g

Carbon produced = 3.72 g

Following the same calculations as before;

Number of moles of oxygen = mass / atomic mass = 9.92 g / 16 g/mol = 0.62 mol

Number of moles of carbon = mass / atomic mass = 3.72 g / 12 g/mol = 0.31 mol

Since the atomic ratio of carbon to oxygen in carbon dioxide is y, we can write the following equation;

0.31 mol C / (0.62 mol O) = y

Simplifying the equation, we have;

y = 0.5

Therefore, the atomic ratio of carbon to oxygen in carbon dioxide is 1:0.5, which can be simplified to 2:1.

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--The given question is incomplete, the complete question is

"Missed this? watch kcv: atomic theory; read section 2.3. you can click on the review link to access the section in your text. carbon and oxygen form both carbon monoxide and carbon dioxide. when samples of these are decomposed, the carbon monoxide produces 3.36 g of oxygen and 2.52 g of carbon, while the carbon dioxide produces 9.92 g of oxygen and 3.72 g of carbon. Calculate the atomic ratio of carbon to oxygen in carbon monoxide, and carbon dioxide."--