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Answer:

it is important because, cells provide structure and function of all living things, from microorganisms to humans as well.

Answer:

Explanation:

The volume can be used by using the formula for Boyle's law which is

\(P_1V_1 = P_2V_2 \\ \)

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we're finding the final volume

\(V_2 = \frac{P_1V_1}{P_2} \\\)

We have

\(V_2 = \frac{2.5 \times 4.4}{4.5} = \frac{11}{4.5} \\ = 2.444444....\)

We have the final answer as

Hope this helps you

The volume of bag in plane will be 181 ml.

The volume and pressure are inversely related with each other. Representing the equation -

\( P_{1}\) \( V_{1}\) = \( P_{2}\) \( V_{2}\). The values on LHS are initial pressure and volume. The values on RHS are final pressure and volume.

Keep the values in formula -

150 × 760 = 630 × \( V_{2}\)

Rewriting the equation as per \( V_{2}\)

\( V_{2}\) = (150 × 760) ÷ 630

Performing multiplication in numerator followed by division in fraction

\( V_{2}\) = 114,000 ÷ 630

\( V_{2}\) = 181 ml

Thus, the final volume is 181 ml.

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Answer:

16.6 g of Al are produced in the reaction of 82.4 g of AlCl₃

Explanation:

Let's see the decomposition reaction:

2AlCl₃ →  2Al  + 3Cl₂

2 moles of aluminum chloride decompose to 2 moles of solid Al and 3 moles of chlorine gas.

We determine the moles of salt:

82.4 g . 1mol/ 133.34g = 0.618 moles

Ratio is 2:2. 2 moles of salt, can produce 2 moles of Al

Then, 0.618 moles of salt must produce 0.618 moles of Al.

Let's convert the moles to mass → 0.618 mol . 26.98g /mol = 16.6 g

Answer:

b

Explanation:

Answer:

pure water that's easy hope that helps

The molarity of the BaCl2 solution is approximately 0.0936 M.

To find the molarity of the BaCl2 solution, we can use the stoichiometry of the reaction between BaCl2 and Na2SO4.

First, we need to determine the number of moles of Na2SO4 in the 754 mg sample. The molar mass of Na2SO4 is calculated as follows:

Na: 2 * 22.99 g/mol = 45.98 g/mol

S: 1 * 32.07 g/mol = 32.07 g/mol

O: 4 * 16.00 g/mol = 64.00 g/mol

Total molar mass of Na2SO4 = 45.98 g/mol + 32.07 g/mol + 64.00 g/mol = 142.05 g/mol

The number of moles of Na2SO4 can be calculated by dividing the mass of the sample by its molar mass:

Moles of Na2SO4 = 754 mg / 142.05 g/mol = 0.005308 mol

From the balanced chemical equation between BaCl2 and Na2SO4:

BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2NaCl(aq)

We can see that the stoichiometric ratio between BaCl2 and Na2SO4 is 1:1.

Therefore, the number of moles of BaCl2 required to react with Na2SO4 is also 0.005308 mol.

The volume of the BaCl2 solution required is given as 56.6 mL, which is equal to 0.0566 L.

The molarity (M) of the BaCl2 solution can be calculated by dividing the number of moles of BaCl2 by the volume of the solution in liters:

Molarity = Moles of BaCl2 / Volume of BaCl2 solution in L

= 0.005308 mol / 0.0566 L

= 0.0936 M

Therefore, The molarity of the BaCl2 solution is approximately 0.0936 M.

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A pressure of 151 kpa is equivalent to 1.49 atm. To convert kpa (kilopascals) to atm (atmospheres), we need to divide the pressure by the standard atmospheric pressure, which is 101.325 kpa.

So, 151 kpa divided by 101.325 kpa equals 1.490 atm. To report our answer to three significant figures, we round it to 1.49 atm. Therefore, a pressure of 151 kpa is equivalent to 1.49 atm.
To convert a pressure of 151 kPa to atmospheres (atm), you need to use the conversion factor 1 atm = 101.325 kPa. To make the conversion, divide the pressure in kPa by the conversion factor:

Pressure in atm = (151 kPa) / (101.325 kPa/atm) = 1.49 atm

The pressure of 151 kPa is equivalent to approximately 1.49 atm, reported to three significant figures.

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Newton’s second law of motion is a dot product of mass and acceleration, if you remove the table from, under the book, gravity will act on the book and pull it downwards to the centre of the earth

Newton's Second law of motion states that "the acceleration of an object depends upon two variables – the net force acting on the object and the mass of the object."

In our case the mass of the book and the force of gravity

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Shannon's Entropy is simply the "amount of information" in a variable on a conceptual level. In more practical terms, this translates to the amount of storage available (e.g. number of bits)

required to store the variable, which corresponds intuitively to the amount of information in that variable The amount of information gained by observing an event with probability 1/e is one nat. The Shannon entropy can be used to quantify the amount of uncertainty in an entire probability distribution. Shannon's entropy, also known as information entropy, quantifies the amount of uncertainty (or surprise) in the value of a random variable or the outcome of a random process. Its importance in the decision tree stems from the fact that it allows us to estimate the impurity or heterogeneity of the

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Answer:

The energy required to completely separate the molecules, moving from liquid to gas, is much greater that if you were just to reduce their separation, solid to liquid. Hence the reason why the latent heat of vaporization is greater that the latent heat of fusion.

Answer:

It takes longer to boil water than to melt ice because of the difference in the amount of heat required to overcome the forces of attraction by keeping the temperature constant during this time. ... This is the reason it takes longer in boiling than in melting.

As the blades rotate, they experience frictional forces as they `rub' against the air; this knocks electrons around, causing the blades to build up a net charge. The charged dust particles then stick to the charged areas of the blades. "The leading edge of the blades usually develops the thickest layer of dust.

To solve this we must be knowing each and every concept related to dust. Therefore,  frictional forces allow the ceiling fan´s blade to collect dust so quickly.

Dust stirred up by automobiles on the road may account for 33% overall air pollution. Deposits of vehicle or commercial exhaust gas, particles through tire and braking wear, dust from paved streets or potholes, plus dust from building sites all contribute to road dust.

As the blades revolve, frictional forces cause them to 'rub' against the air, knocking electrons around and allowing the blades to accumulate a net charge. The electrified dust particles are subsequently attracted to the charged portions of the blades. Typically, the sharp end of the blades creates the heaviest coating of dust.

Therefore,  frictional forces allow the ceiling fan´s blade to collect dust so quickly.

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The particles in the solution can be separated from heterogeneous mixtures by passing the mixture through a filter (option b).

The particles in the solution can be separated by using different types of methods such as for example a filter that is able to separate particles depending on their size or net charge.

Therefore, with this data, we can see that particles in the solution can be separated depending on their sizes, electrical charges, etc, and for that purpose, we can use a filter of any other type of method.

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Answer:

A

Explanation:

the particles in space to be able to move their has to be temperature

Answer:

2.The US surgeon general’s 1964 report declared that smoking cigarettes was linked to cancer.4.The average global temperature of the Earth has increased by almost two degrees in the last century.

Explanation:

on edge

Answer:

2 and 4

Explanation:

I just did it....

Answer:

The element was one of the alkaline metals, the dull appearance comes from the metal reacting with oxygen and oxidizing its outer surface as alkaline are known for their enormous reaction with oxygen in the air and water.

Another ability of this group of elements is the ability to conduct electricity. And they are also easy to cut with a kitchen knife.

Answer:

Photosynthesis uses light energy to convert inorganic carbon dioxide into glucose, which cells can use for energy. This molecule is metabolized in cellular respiration to release carbon dioxide and water as waste products and ATP as the form of energy to be used by the cell.

Answer:

It is the same it has cycles related to it (that's what I could think of)

Specific gravity is the "heaviness" of a mineral. It is defined as a number that expresses the ratio between the weight of a mineral and the weight of an equal volume of water.

Answer:

The ratio of it's mass of an equal volume of water.

Explanation:

The amount of concentrated solution needed is (0.286 M)(65 mL) / C M, and the amount of water needed is 65 mL minus the volume of the concentrated solution.

To calculate the molarity of Kool Aid desired, we need to determine the number of moles of Kool Aid powder and sugar in the package. Since the molecular formula for sugar is C12H22O11, we can calculate its molar mass as follows:

Molar mass of C12H22O11 = (12 * 12.01) + (22 * 1.01) + (11 * 16.00)

= 144.12 + 22.22 + 176.00

= 342.34 g/mol

Given that the package contains 4.25 grams of Kool Aid powder, we can calculate the number of moles of Kool Aid powder using its molar mass:

Number of moles of Kool Aid powder = Mass / Molar mass

= 4.25 g / 342.34 g/mol

≈ 0.0124 mol

Similarly, for the sugar, which has a molar mass of 342.34 g/mol, we can calculate the number of moles of sugar using its mass:

Number of moles of sugar = Mass / Molar mass

= 192.00 g / 342.34 g/mol

≈ 0.5612 mol

Now, to calculate the molarity of the desired Kool Aid solution, we need to determine the volume of water. Given that 1.06 quarts is equal to 1 liter, and we have 2.00 quarts of water, we can convert it to liters as follows:

Volume of water = 2.00 quarts * (1.06 liters / 1 quart)

= 2.12 liters

To find the molarity, we use the formula:

Molarity (M) = Number of moles / Volume (in liters)

Molarity of Kool Aid desired = (0.0124 mol + 0.5612 mol) / 2.12 L

≈ 0.286 M

To prepare 65 mL of the desired molarity, we can use dilution calculations. We need to determine the volume of concentrated solution and the volume of water needed.

Let's assume the concentration of the concentrated Kool Aid solution is C M. Using the dilution formula:

(C1)(V1) = (C2)(V2)where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.

Given that C1 = C M and V1 = V mL, and we want to prepare a final volume of 65 mL (V2 = 65 mL) with a final concentration of 0.286 M (C2 = 0.286 M), we can rearrange the formula to solve for the volume of the concentrated solution:

(C M)(V mL) = (0.286 M)(65 mL)

V mL = (0.286 M)(65 mL) / C M

So, the amount of concentrated solution needed is (0.286 M)(65 mL) / C M, and the amount of water needed is 65 mL minus the volume of the concentrated solution.

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Answer: 340°C

Explanation: To calculate the temperature we have a formula:

                                      q=mcΔT-------------(1)

Given that q=2.50kJ

                  m=22.0g

                   c=0.385J/g°C

                    T1=45°C

ΔT=change in Temperature(T2-T1)

Now calculate the temp substitute these values in  euation(1)

                    2.50= (22.0*0.385)(x-45)

                      2.50 = 8.47(T2-45)

                     2.50=8.47T2-381  

                      T2=340°C

Hence,the final temperature of cu ic 340°C

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Answer:

Aluminiun

Explanation:

Answer:

Falso.

Explanation:

El modelo cuántico (no relativista) de Schrodinger, piensa a los electrones como ondas estacionarias, tal que la amplitud de dichas ondas decae muy rápidamente cuando se "alejaban" del radio atómico. (Es decir, habia poca probabilidad de que los electrones escaparan del radio atomico, y era por ello que se quedaban orbitando cerca del nucleo). Es decir, podríamos pensar en esto como una "nube de probabilidades" más que una nube electronica

La idea de nube electrónica realmente viene de modelos previos, como el de Rutherford o el de Bhor, los cuales eran modelos clásicos.

Answer:

C D

Explanation:

Answer:

Step 1: Write a balanced chemical equation of the reaction

Step 2: Convert the mass of glucose given to moles of glucose by dividing with the molar mass of glucose, 180 g/mol:

Step 3: Using the mole ratio in the equation of reaction, determine the moles of CO₂ produced:

Step 4: Convert moles of CO₂ to volume in litres of CO₂ at STP:

Explanation:

Fermentation is a complex chemical process whereby microorganisms such as yeast are used in converting carbohydrates such as glucose into ethanol and carbon dioxide under anaerobic conditions:

Step 1: Write a balanced chemical equation of the reaction

Theequation of the fermentation of glucose, C₆H₁₂O₆ at STP is as follows:

C₆H₁₂O₆ (aq) ----> 2 C₂H₅OH (l) + 2 CO₂ (g)

Step 2: Convert the mass of glucose given to moles of glucose by dividing with the molar mass of glucose, 180 g/mol:

Moles of glucose = mass of glucose given/molar mass of glucose = x g/ 1180 g/ mol = x moles of glucose

Step 3: Using the mole ratio in the equation of reaction, determine the moles of CO₂ produced:

From the equation of reaction, 1 mole of C₆H₁₂O₆ produces 2 moles of CO₂.

Therefore, x moles of C₆H₁₂O₆ will produce 2x moles of CO₂

Step 4: Convert moles of CO₂ to volume in litres of CO₂ at STP:

1 mole of a gas at STP has a volume of 22.4 L

1 mole of CO₂ has a volume of 22.4 L

2x moles of CO₂ has a volume of 2x × 22.4 L

Answer:

E- an ion is positive if it has more protons than it has neutrons

Answer:

Explanation:

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these are the examples of homogeneous mixture