I NEED HELP!!! How is continental crust different from oceanic crust?


Oceanic crust is thinner and more likely to sink.


Oceanic crust is thicker and more dense.


Continental crust is more dense and lighter.


Continental crust is thicker and more likely to sink.

The concentration of volatile suspended solids (Xv) in the lagoon to assess the effluent quality. However, the specific aerator capacity needed cannot be determined without additional information or equations.

To determine if the industry will likely meet the desired effluent quality, we can calculate the BODL concentration in the aerated lagoon and the concentration of volatile suspended solids (Xv) in the lagoon.

BODL concentration in the aerated lagoon:

The BODL concentration in the lagoon can be calculated using the equation:

BODL_lagoon = BODL_influent - q * Xv * θ

where BODL_influent is the initial BODL concentration (2,000 mg/l), q is the specific oxygen utilization rate (27 mgBODL/mgVSSa-d), Xv is the concentration of volatile suspended solids (to be determined), and θ is the hydraulic retention time (1 day).

Concentration of volatile suspended solids (Xv) in the lagoon:

The concentration of volatile suspended solids can be calculated using the equation:

Xv = BODL_influent / (q * θ)

where BODL_influent is the initial BODL concentration (2,000 mg/l), q is the specific oxygen utilization rate (27 mgBODL/mgVSSa-d), and θ is the hydraulic retention time (1 day).

By substituting the given values into the equations, we can calculate the BODL concentration in the lagoon and the concentration of volatile suspended solids.

Regarding the aerator capacity needed, the question asks for the amount of aerator capacity in kW/1,000 m3 of tank volume. To calculate this, we need the field oxygen transfer efficiency (1 kgO2/kWh). However, the equation or method to determine the aerator capacity based on the given information is not provided. Without additional information or equations, it is not possible to calculate the specific aerator capacity needed in this scenario.

In summary, we can calculate the BODL concentration in the aerated lagoon and the concentration of volatile suspended solids (Xv) in the lagoon to assess the effluent quality. However, the specific aerator capacity needed cannot be determined without additional information or equations.

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Answer:

Net force: 110 N

Resulting Force: 24.7289837 pounds-force

Explanation:

First you would add 30+60+20N which would be 110N

110N would equal to the 24.72898937 pounds of force.

There are 23 atoms of Fe in a 55.845 gram. As a result, after dividing our mass of 239 grams by the iron formula mass of 55.84 grams per bole, formol equals after calculation.

Use the millimeters to mole formula to calculate the molecular weight n, of a substance with a given mass, m, (in grams) accurately. n = m / M, where M is the substance's molar mass also known as gram-molecular weight. a substance's molecular weight expressed as a mass in grams. Example: NaCl salt weighs 58.44 grams per gram-mole. American Meteorological Society, copyright 2022.

Number of Avogadro = 6.023 × 10²³. The products of every chemical reaction are measured using the Avogadro number. 1 mole of atoms, molecules, or particles is equal to 6.023 x 1023. Calculating the number of molecules is as follows: mole number = quantity of material / mass of one mole.

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There are 23 atoms of Fe in a 55.845 gram. As a result, after dividing our mass of 239 grams by the iron formula mass of 55.84 grams per bole, formol equals after calculation.

Use the millimeters to mole formula to calculate the molecular weight n, of a substance with a given mass, m, (in grams) accurately. n = m / M, where M is the substance's molar mass also known as gram-molecular weight. a substance's molecular weight expressed as a mass in grams. Example: NaCl salt weighs 58.44 grams per gram-mole. American Meteorological Society, copyright 2022.

Number of Avogadro = 6.023 × 10²³. The products of every chemical reaction are measured using the Avogadro number. 1 mole of atoms, molecules, or particles is equal to 6.023 x 1023. Calculating the number of molecules is as follows: mole number = quantity of material / mass of one mole.

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Answer: 2.85 x 10^22

Explanation:

We can use stoichiometry to convert grams to atoms.

*Important quantities*

Original amount of Copper: 3 grams

Molar mass of Copper: 63.5 grams

Avogadro's number: 6.022x10^23 atoms/formula units/molecules

Process - \(\frac{3gramCu}{1}\)×\(\frac{1 mole Cu}{63.5 gCu}\)×\(\frac{6.022x10x^{23} }{1 moleCu}\) = 2.84503937×10^22

After taking sig figs into account, the answer needs to be rounded to 3 decimal places

Final answer: 2.85 x 10^22

The specific heat of the metal is 19.99 J / g·°C

Given,

We are required to find the specific heat of the metal.

Specific Heat Formula

We know that the specific heat of a substance is defined as the amount of heat energy required to raise the temperature of 1 gram of that substance by 1° C.

It is denoted by “C.”From the problem, the heat gained by the water will be equal to the heat lost by the metal. This can be represented by the equation below:

q gained by the water = q lost by the metal where, q = m * C * ∆T

where, m is the mass of the substance , C is the specific heat of the substance , ∆T is the change in temperature of the substance

The heat gained by the water can be calculated as:

q gained by the water = m * C * ∆T= 50.00 g * 4.184 J/g·°C * (20.15 - 12.6)°C= 50.00 g * 4.184 J/g·°C * 7.55°C= 1576.78 J

The heat lost by the metal can be calculated as:

q lost by the metal = m * C * ∆T= 25.00 g * C * (99.0 - 20.15)°C= 25.00 g * C * 78.85°C= 1971.25 C * g * °C

The two equations can be equated to get:

C * 78.85°C = 1576.78 JC = 1576.78 J / 78.85°C= 19.99 J / g·°C

Therefore, the specific heat of the unknown metal is 19.99 J / g·°C.

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Answer:

The speed of sound in air is 333.33 m/s

Explanation:

The parameters given are the time it takes for the sound to male it to the cliff and back = 30 times in 9 seconds

Distance to the cliff = 50 meters

Therefore, the sound covers a distance of 30 × 100 = 3000 meters in 9 seconds

Which give the speed of sound in air using the formula for speed = Distance/Time

Therefore, the speed of sound in air = 3000/9 = 333.33 m/s.

Answer:

A₃B₈ + 5C₂ –> 3AC₂ + 4B₂C

Explanation:

A₃B₈ + C₂ –> AC₂ + B₂C

The equation can be balance as illustrated below:

A₃B₈ + C₂ –> AC₂ + B₂C

There are 3 atoms of A on the left side and 1 atom on the right side. It can be balance by writing 3 before AC₂ as shown below:

A₃B₈ + C₂ –> 3AC₂ + B₂C

There are 8 atoms of B on the left side and 2 atoms on the right side. It can be balance by writing 4 before B₂C as shown below:

A₃B₈ + C₂ –> 3AC₂ + 4B₂C

There are 2 atoms of C on the left side and a total of 10 atoms on the right side. It can be balance by writing 5 before C₂ as shown below:

A₃B₈ + 5C₂ –> 3AC₂ + 4B₂C

Now, the equation is balanced.

The best site for tritium labeling would not exchange the tritium ions for protons in water. All of the N−H sites (II−IV) would readily exchange tritium protons due to their lone pair-facilitating protonation and subsequent tritium exchange with water, but the C−H site (I), lacking a lone pair, would retain its tritium label.

Water is an inorganic, clear, tasteless, odorless, nearly colorless chemical substance that is the main component of the earth's hydrosphere and the fluid of all known living organisms. Although it provides no food, energy, or organic micronutrients, it is essential to all known forms of life.

There are three atoms in the water molecule. Two hydrogen atoms (H) and one oxygen atom (O). This is why water is sometimes called H2O. One drop of water contains billions of water molecules. Water is wet in the sense that it is a highly mobile liquid. This is because the molecules are fairly loosely bound and thus have low viscosity.

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Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

\(KE = \frac{1}{2} m {v}^{2} \\ \)

where

m is the mass

v is the velocity

From the question we have

\(KE = \frac{1}{2} \times 35 \times {1.2}^{2} \\ = 17.5 \times 1.44 \)

We have the final answer as

Hope this helps you

Answer:

25.2 J

Explanation:

Using the kinetic energy formula:

KE = \(\frac{1}{2}\)m v²

Plug in the given values:

KE = \(\frac{1}{2}\) (35 kg) · (1.2 m/s)²

KE = \(\frac{1}{2}\) (35) · 1.44

KE = 17.5 · 1.44

KE = 25.2 J

There is a kinetic energy of 25.2 Joules.

The empirical formula of compound with 39.97% carbon, 13.41% hydrogen, and 46.62 is CH₄N. The correct answer is A

The compound's mass percentages for C, H, and N are supplied, and we are requested to determine its empirical formula. First, we divide each element's fraction by its atomic mass to determine its moles;

moles = mass/ mass molar

moles C = 39.7/ 12. 01 = 3.33

Moles H = 13.41/1.01= 13.3

Moles N = 46.62/14.01 = 3.33

Divide the number of moles for each by the lowest number, which is 3.33.

So, C = 3.33/3.33 = 1

H =13.33/3.33  = 4

N = 3.33/3.33  = 1

Therefore, the compound's empirical formula is CH₄N. The correct answer is A

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In 1800s, the john Dalton's atomic theory was that atoms are indivisible. later on ,  The indivisible atom part of the theory was discarded because consensus of data must exist for theories to be valid.

The Dalton's theory has some postulate which states that :

1) The atoms are the smallest form of matter and are the indivisible.

2) Each atom of same element have same and different atoms must be different types of element.

3) Atoms can not be created nor be destroyed but can be mix match.

4) Compound form from different elements combine in specific ratio.

now, the first postulate , has already been proving wrong by experiments like Rutherford's gold foil experiment and Thomson's discovery of electron.

Science is based on experiments and testings. in case of Dalton's atomic theory . it was not completely wrong but the only part that atom is indivisible was wrong.

therefore only this part was discarded that : The indivisible atom part of the theory was discarded because consensus of data must exist for theories to be valid.

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Answer:

The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth. The frequency of dark-coloured moths increased at that time, an example of industrial melanism.

Explanation:

I did this on Savvas Realize got it right.

Genetic variation is said to be the difference in the hereditary sequence. After the industrial revolution, the frequency of the dark-colored moth increased dramatically more than the light-colored moths.

Industrial melanism was an example of the evolutionary effect that occurred in the moths where the dark-colored species were favored over the light-colored species of peppered moths.

Before the industrial population, light-colored moths were large in number which later decreased with an increase in pollution. This occurred due to an increase in the pollutants and dust deposition that altered the environment.

As the pollution increased over time the dark-colored moths became dominant and increased their population over time. This is an example of industrial melanism as the color of the body was the determining factor in survival.

Therefore, dark-colored moths were prevalent after the industrial revolution.

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The evaporation of water from your skin is an example of an endothermic reaction because heat is lost from the body as the water evaporates from the skin.

Based on the heat changes that occur in reaction, reactions can be classified into two types;

Exothermic reactions are reactions in which the heat content of the reactants is greater than the heat content of the products. Hence, heat is given out during the reaction. An example is the dissolution of acids in water.

Endothermic reactions are reactions in which the heat content of the reactants is less than the heat content of the products. Hence, heat is absorbed during the reaction. An example is the evaporation of water from the skin.

Other types of endothermic reactions are the melting of ice and thermal decomposition.

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This structure is correct due to the total number of bonds and electrons

We employ the octet rule, which states that all atoms in a compound are expected to follow, to check the accuracy of any chemical structure. The octet rule is precisely satisfied for each atom in the depicted structure of carbon IV oxide. The valence shell of each atom in the molecule is surrounded by eight electrons. We may thus infer that this structure is accurate given the total number of bonds and electrons since CO2 has sixteen valence electrons.

It possesses a negative charge of 1.602176634 coulombs, the basic unit of electric charge, which is comparable to its negative charge. The rest mass of an electron is 9.1093837015 10^-31 kg, or just 1/1,836 the mass of a proton. An electron is therefore considered to have practically negligible mass in comparison to a proton or neutron, and its matter is not taken into consideration when calculating an atom's mass number.

The question is incomplete, the complete question is found in the image attached to this answer

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Answer:

Mass = 3 g

Explanation:

Given data:

Mass of magnesium = 2.4 g

Mass of oxygen = 2.4 g

Mass of magnesium oxide formed = ?

Solution:

Chemical equation;

2Mg + O₂    →     2MgO

Number of moles of oxygen:

Number of moles = mass / molar mass

Number of moles = 2.4 g/ 32 g/mol

Number of moles = 0.075 mol

Number of moles of magnesium:

Number of moles = mass / molar mass

Number of moles = 2.4 g/ 24 g/mol

Number of moles = 0.1 mol

now we will compare the moles of magnesium oxide with both reactant.

               Mg         :        MgO

                 2          :          2

               0.075    :        0.075

               O₂         :         MgO

                1          :           2

             0.1         :      2/1×0.1 = 0.2

Mass of magnesium oxide:

Mass = number of moles × molar mass

Mass = 0.075 mol × 40 g/mol

Mass = 3 g

The -OH on the end of the pentanol molecule will affect the surface tension as it will be higher as that of as pentane or hexane.

This is referred to as the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid.

It minimizes the surface area and the higher strength of the intermolecular force is present in the pentanol therefore the surface tension of the pentanol is more than surface tension of the pentane and hexane.

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Answer:

Na2CrO4 + AgNO3

Al2(SO4)3 + Ba(NO3)2

BaCl2 + K2CrO4

Explanation:

\(2Cu + 2Ag^+ \rightarrow 2Cu^{2+} + 2Ag\) is a balanced overall reaction from these unbalanced half-reactions.

A chemical equation that is balanced has the same amount of atoms of each element on both sides of the equation. A chemical reaction must be balanced in order for mass to be preserved, which means that all of the atoms present in the reactants must also be present in the products. One must change the equation's coefficients in order to balance a response. The moles of each compound involved in the reaction are represented by the coefficients.

\(Cu \rightarrow Cu^{2+}\)

\(Ag^+ \rightarrow Ag\)

Balancing the half equation

\(2Cu \rightarrow 2Cu^{2+}\)

\(2Ag^+ \rightarrow 2Ag\)

balanced overall reaction:

\(2Cu + 2Ag^+ \rightarrow 2Cu^{2+} + 2Ag\)

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Answer:

YEESSS

Explanation:

Because that seems like the only logical answer.

Answer:

YES

Explanation:

YES

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

From the question

mass of block = 36 g

volume = 9 cm³

The density is

\(density = \frac{36}{9} \)

We have the final answer as

4.0 g/cm³

Hope this helps you

A symmetric cipher typically has the following essential ingredients: key, plaintext, encryption algorithm, decryption algorithm.

A key: A secret value shared between the sender and the receiver that is used to encrypt and decrypt the message.

A plaintext: The original, unencrypted message.

An encryption algorithm: A mathematical function that takes the plaintext and the key and produces an encrypted message (ciphertext).

A decryption algorithm: A mathematical function that takes the ciphertext and the key and produces the original plaintext.

A method for securely sharing the key between the sender and receiver, as the security of a symmetric cipher relies on the secrecy of the key.

Note: The exact ingredients may vary depending on the specific symmetric cipher being used.

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Answer:

Geothermal provides a reliable source of energy as compared to other renewable resources such as wind and solar power. This is because the resource is always available to be tapped into, unlike with wind or solar energy.

Explanation:

Because its source is the almost unlimited amount of heat generated by the Earth's core. Even in geothermal areas dependent on a reservoir of hot water, the volume taken out can be reinjected, making it a sustainable energy source.

Answer:

A geothermal power plant gets energy from the heat deep below the surface of the earth. Shafts are drilled down, often as deep as several kilometres, one to pump water down to the hot rocks, and another nearby which will allow the heated water (or steam) to rise up. This steam is then used to spin electricity turbines to generate electricity.

Explanation:

\(Br_2\)(g) (option 2) is the byproduct created at the anode during the electrolysis of molten LiBr. \(I_2\)(g) (option 4) is the end result of the electrolysis of molten\(FeI_3\) at the anode. True.

In the chemical process of electrolysis, a substance is broken down into its individual elements or ions. It involves causing chemical processes to take place at the electrodes by passing an electric current through an electrolyte, often a liquid or solution containing ions. Anode and cathode are the terms used to describe the electrodes linked to the positive and negative terminals of a power source, respectively.

1) \(Br_2\)(g) (option 2) is the byproduct created at the anode during the electrolysis of molten LiBr.

2) \(I_2\)(g) (option 4) is the end result of the electrolysis of molten\(FeI_3\) at the anode.

3) True. Through the proper electrolysis of aqueous calcium salts, hydrogen can be produced.

4)False. The appropriate electrolysis of aqueous silver salts cannot produce hydrogen.

5) \(H_2\) and \(OH^-\) are the product(s) generated at the cathode during the electrolysis of a NaCl aqueous solution (option 4).

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0.112 L CO₂ is the volume of carbon dioxide.

Glucose ferments decompose to form the ethanol and carbon dioxide.

Balanced equation :  C₆H₁₂O₆  ----> 2C₂H₅OH (aq) + 2CO₂ (g)

By using formula, M= m/n

Where,

M⇒ Molar mass

m⇒ Mass of a substance (in grams)

n⇒ Number of moles of a substance

The molar mass (M) of C₆H₁₂O₆ (aq) ⇒180.156 g/mol

Calculating the moles(n) of C₆H₁₂O₆(aq) .

n ⇒ m/M

m ⇒ mass ⇒ 0.9 C₆H₁₂O₆

M ⇒ molar mass

n ⇒180.156g/mol C₆H₁₂O₆

n ⇒ 0.9g C₆H₁₂O₆/ 180.156 g/mol

n⇒ 0.005 mol C₆H₁₂O₆

Calculating moles(m) of CO₂ :

m⇒0.005 mol CaCO₃× (1 mol CO₂/1 mol  C₆H₁₂O₆)

m⇒ 0.005 mol CO₂

At STP of 273.15 K (0°C) and 1 atm, the molar volume of a gas is 22.414 L/mol.

Calculating volume of CO₂ :

Multiply the mole CO₂ by the molar volume to get the volume of CO₂ in liters.

⇒ 0.005 mol CO₂× 22.414 L/mol

⇒ 0.112 L CO₂  to three significant figures

Converting volume CO₂ in L to mL.

⇒ 0.112 L CO₂ × 1000 mL/L

⇒ 112.07 mL CO₂

Volume of CO₂ ⇒ 0.112 L CO₂  or 112.07 mL CO₂

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Answer:

Wind depositing sand to build up sand dunes.

Explanation:

Answer:

1270 mmHg

Explanation:

Answer : 1270 mmhg

Explanation:

Answer:

Pls pls pls mark brainliest

Answer: It is a Heterogeneous mixture.