Are the following combinations allowed? If not, show two ways to correct them:
(a) n=1 ; l=0 ; ml=0

Answer:

A endocytosis

Explanation:

The process by which a cell takes in a large particle is called endocytosis. Therefore, the correct option is option A.

Endocytosis is the procedure by which molecules are actively transported into the cell by being engulfed by its membrane. All cells use endocytosis and exocytosis to transport substances that cannot passively cross the membrane. Exocytosis serves the opposite purpose by ejecting molecules from the cell.

The requirement for homeostasis ensures an equal flow all molecules into and out of a cell, like all of the body's systems. This indicates that the number of molecules exocytosis and endocytosis both equal the number of molecules into the cell. The two systems work together to maintain a balance between nutrients and waste that is necessary for normal cell growth and function. The process by which a cell takes in a large particle is called endocytosis.

Therefore, the correct option is option A.

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Answer:

C) 0.121 M

Explanation:

HCl + H₂O = H₃O⁺ + OH⁻

.121M              .121M

HCl is a strong acid . It will dissociate almost 100 % so the concentration of acid and hydronium ion formed will be equal . It is to be noted that hydronium ion is formed due to association of H⁺ and H₂O . H⁺ is formed due to ionisation of HCl .

So concentrtion of hydronium ion ( H₃O⁺ ) will be .121 M.

Answer:

Approximately \(1.7\; {\rm L}\).

Explanation:

Nitrogen \({\rm N_{2}}\, (g)\) reacts with hydrogen \({\rm H_{2}}\, (g)\) at a \(1:3\) ratio to produce ammonia \({\rm NH_3}\, (g)\):

\({\rm N_{2}}\, (g) + 3\; {\rm H_{2}}\, (g) \to 2\; {\rm NH_{3}}\, (g)\).

The ratio between the coefficient of \({\rm N_{2}}\, (g)\) and the coefficient of \({\rm H_{2}}\, (g)\) is:

\(\begin{aligned}\frac{n({\rm N_{2}})}{n({\rm H_{2}})} = \frac{1}{3}\end{aligned}\).

Under the ideal gas assumptions, the same ratio would apply to the volume of \({\rm N_{2}}\, (g)\) and \({\rm H_{2}}\, (g)\) in this reaction:

\(\begin{aligned}\frac{V({\rm N_{2}})}{V({\rm H_{2}})} = \frac{n({\rm N_{2}})}{n({\rm H_{2}})} = \frac{1}{3}\end{aligned}\).

\(\begin{aligned}V({\rm N_{2}})= \frac{1}{3}\, V({\rm H_{2}})\end{aligned}\).

Given that \(V({\rm H_{2}}) = 5.0\; {\rm L}\):

\(\begin{aligned}V({\rm N_{2}}) &= \frac{1}{3}\, V({\rm H_{2}}) \\ &= \frac{1}{3}\times 5.0\; {\rm L} \\ &\approx 1.7\; {\rm L}\end{aligned}\).

(Rounded to \(2\) significant figures.)

When Benedict's reagent is heated with monosaccharides, a chemical reaction occurs that results in the formation of a reddish-brown precipitate, indicating the presence of reducing sugars in the sample.

When Benedict's reagent is heated with monosaccharides, a chemical reaction takes place that results in the formation of a reddish-brown precipitate. This reaction is a type of oxidation-reduction reaction, where the reducing sugar (monosaccharide) reduces the copper ions in the Benedict's reagent to form copper (I) oxide.

This process releases electrons, which in turn, reduce the copper ions to form copper (I) oxide. The reddish-brown precipitate that forms is indicative of the presence of monosaccharides in the sample.

The Benedict's test is a simple and inexpensive method used to detect the presence of reducing sugars, such as glucose and fructose, in a given sample. This test is commonly used in clinical and laboratory settings to diagnose conditions such as diabetes mellitus, which is characterized by high blood sugar levels. The Benedict's test can also be used to monitor the progress of sugar fermentation processes in the food industry.

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Remember these followings :-

Acid + Base = salt + water

Acid + metal = salt + hydrogen

Acid + carbonates = salt + water + carbon dioxide

Base + ammonium salt = salt + ammonia + water

Base + acidic oxide = salt + water

I hope that you will be clear via these formulas.

In a 2.50-L container with 56 g each of nitrogen and carbon dioxide gases added at 25°C, the partial pressure of nitrogen gas is 4.89 atm. The root mean square speed of an A₂ molecule at 0°C is approximately 8.65 m/s. None of the given options are correct.

Q1. We need to find the partial pressure (atm) of nitrogen gas in a 2.50−L container into which 56 g of each nitrogen and carbon dioxide gases are added at 25°C. Let's begin:
56g of N₂ will be equal to moles of N₂ = (56/28) = 2 mol N₂
56g of CO₂ will be equal to moles of CO₂ = (56/44) = 1.27 mol CO₂

Total moles of gas = 2 + 1.27 = 3.27 moles
Molar mass of N₂ = 28 g/mol
Ideal Gas equation = PV = nRT
Partial pressure of N₂ = P_N₂ = (n_N₂ * RT) / V
Where,
n_N₂ = number of moles of N₂ = 2 mol
R = gas constant = 0.08206 L atm K⁻¹ mol⁻¹
T = temperature in kelvin = (25 + 273.15) K = 298.15 K
V = volume of container = 2.50 L

Substituting the values in the formula, we get:
P_N₂ = (2 mol * 0.08206 L atm K⁻¹ mol⁻¹ * 298.15 K) / 2.50 L
P_N₂ = 4.89 atm

Therefore, the partial pressure (atm) of nitrogen gas in a 2.50−L container into which 56 g of each nitrogen and carbon dioxide gases are added at 25°C is 4.89 atm.

None of the given options are correct.

Q2. We need to find the root mean square speed (m/s) of an A₂ molecule (atomic mass =6amu ) at 0°C. Let's begin:

The root mean square speed (v rms) of an ideal gas is given by the formula:
v rms = √(3RT / M)
Where,
R = gas constant = 8.314 J/mol K
T = temperature in kelvin = 0 + 273.15 K = 273.15 K
M = molar mass of the gas = 6 g/mol = 6 / 1000 kg/mol = 0.006 kg/mol

Substituting the values in the formula, we get:
v rms = √(3 * 8.314 J/mol K * 273.15 K / 0.006 kg/mol)
v rms = √(3 * 8.314 J/mol K * 273.15 K / 6 * 10⁻³ kg/mol)
v rms = √(74.81)
v rms = 8.65 m/s (approx.)

Therefore, the root mean square speed (m/s) of an A₂ molecule (atomic mass =6amu ) at 0°C is 8.65 m/s (approx.).

None of the given options are correct.

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Complete Question:

Q24: What is the partial pressure (atm) of nitrogen gas in a 2.50-L container into which 56 g of each nitrogen and carbon dioxide gases are added at 25°C ? A) 39.00 B) 39.10 C) 17.90 D) 19.55 B) 15200

Q25: Calculate the root mean square speed (m/s) of an A2 molecule (atomic mass =6amu) at 0°C. 4) 1506 B) 1.135×10⁶ C) 1065.0 D) 1065.3 E) 753

(a) The maximum number of electrons an atom can have with the sublevel designation is 2 electrons.

(b) The maximum number of electrons for p-orbital is 6 electrons.

(c) The maximum number of electrons for f-orbital is 14 electrons.

(a) For n = 2, I = 1, ml = 0,

The energy level will be:

Energy level = 2(1) + 1 = 3 sub-orbitals

= -1  0  1  : ( 2 electrons each)

Thus, the maximum number of electrons an atom can have with the sublevel designation is 2 electrons.

(b) 5p

p-orbital has 3 sub-orbitals and a maximum of 6 electrons

(c) n= 4, I = 3

energy level = 2(3) + 1 = 7 sub-orbitals

7 sub-orbitals correspond to the f-orbital and it has a maximum of 14 electrons.

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Answer:

missin a diagram buddy

Explanation:

The empirical formula of the compound is CH2O.

To find the empirical formula of the compound, we need to determine the ratios of the atoms in the compound. To do this, we need to find the number of moles of each element present in the compound.

The molar mass of carbon is 12.01 g/mol, the molar mass of hydrogen is 1.008 g/mol, and the molar mass of oxygen is 16.00 g/mol. The number of moles of carbon in the sample is:0.1565 g × 1 mol/12.01 g ≈ 0.0130 mol. The number of moles of hydrogen in the sample is:0.02627 g × 1 mol/1.008 g ≈ 0.0261 molThe number of moles of oxygen in the sample is:

0.4170 g × 1 mol/16.00 g ≈ 0.0261 mol

Now that we know the number of moles of each element, we can determine the simplest whole number ratio of the elements in the compound. We can do this by dividing each number of moles by the smallest number of moles. In this case, the smallest number of moles is 0.0130 mol.

We get:

Carbon: 0.0130 mol ÷ 0.0130 mol = 1

Hydrogen: 0.0261 mol ÷ 0.0130 mol = 2

Oxygen: 0.0261 mol ÷ 0.0130 mol = 2

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ANSWER

EXPLANATION

Given that

The number of moles lithium bromide is 5.5 moles

Firstly, write a balanced equation for the reaction

Find the number of moles of bromine using stoichiometry ratio

Let x represents the number of bromine

The best radioactive isotope for age-dating a rock from 50,000 years ago would be Carbon-14 (14C).

Carbon-14 (14C) is the most suitable radioactive isotope for dating materials up to approximately 50,000 years old, making it ideal for age-dating a rock from 50,000 years ago. This is because 14C is formed in the upper atmosphere when cosmic rays interact with nitrogen, and it is incorporated into living organisms through photosynthesis or consumption. After an organism dies, the 14C begins to decay at a known rate, known as the half-life, which is approximately 5730 years. By measuring the remaining amount of 14C in a sample, scientists can determine how long it has been since the organism died and, therefore, date the rock or material containing organic matter to estimate its age. Other radioactive isotopes with longer half-lives, such as Uranium-238 or Potassium-40, are better suited for dating much older rocks or minerals.

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alright, sum leaves have large air pockets inside that allow the plant to absorb oxygen from the water from rain or puddles

Answer:

Plant adaptations are modifications that enable a plant species thrive in its natural habitat. Underwater aquatic plants have enormous air pockets in their leaves that allow them to collect oxygen from the water. Aquatic plants' leaves are also incredibly delicate, allowing them to move with the waves.

Answer:

30 grams

Explanation:

I got 40 wrong so I picked 30

Answer:

30 grams

Explanation:

I did the ck12

Answer:

¹₀P

Explanation:

 Nuclear reaction:

                ⁹₄Be  + ⁴₂He  → ¹²₆C + ?

To balance this equation, as with other combining specie, the mass number on both sides of the expression must be the same. Also, the atomic number must be the same.

   Let us represent the unknown by X;

          ⁹₄Be  + ⁴₂He  → ¹²₆C + ᵇₐX

 Now;

  Sum of mass number;

            9 + 4 = 12 + b

               13 = 12 + b

                    b = 1

   Sum of atomic number;

             4 + 2  = 6 + a

               a = 0

So the specie is a position ¹₀P

INFORMATION:

We need to determine which is another name for petroleum

STEP BY STEP EXPLANATION:

To determine it, we need to know that:

Petroleum also receives other names such as natural oil, mineral oil, stone oil, noble oil and black oil.

Now, knowing that, we can state that another valid term for petroleum could be oil.

ANSWER:

B. Oil

Answer:

the energy produced as part of the reaction and balancing the equation accounts for the energy produced

The strength of the associated bonds and the mass of the atoms define the precise frequency at which a certain vibration occurs.

A stretching vibration occurs when the interatomic distance continuously changes along the axis of the link between two atoms. A bending vibration is an alteration in the angle between two bonds. There are four types of bending vibrations: wagging, twisting, rocking, and scissoring. Because a significant change in the dipole occurs in that mode, bond stretching is typically accompanied by highly strong bonds.

Individual interatomic bonds may absorb at more than one IR frequency because they can vibrate in a variety of directions (stretching or bending). As a result, various molecules with different functional groups will often absorb within the same, predetermined frequency ranges.

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Explanation:

The closest orbital to the nucleus, called the 1s orbital, can hold up to two electrons. This orbital is equivalent to the innermost electron shell of the Bohr model of the atom. It is called the 1s orbital because it is spherical around the nucleus.

Answer: a mercury thermometer is better to measure very small changes in temperature

Explanation:

i took the test and got it right

Answer:

the answer is C, a mercury thermometer is better to measure very small changes in temperature.

Explanation:

i just took the test and it was correct :)

Answer:

0.8338395752301793

Explanation:

I used an online converter (grams to moles for FeCl2)

The material with a higher boiling point is:  CaCl2,CH3Br,CH3OH

Because ionic forces are more powerful than covalent interactions, these compounds have higher boiling temperatures than expected.

Relative boiling points can be predicted using intermolecular forces (IMFs).The relationship between the substance's vapour pressure and boiling point depends on the strength of the IMFs.In order to anticipate the compounds' respective boiling points, we may compare the IMFs of the various compounds.

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The answer is C, Uranium.

Natural gas, coal, and oil are all naturally made from fossils. Uranium is an element which can be found on the Periodic Table of Elements.

C. Uranium

... ... ... ...

Dominant

Explanation:

Meaning that particular gene is stronger than the others.

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\ \)

From the question we have

\(volume = \frac{12.5}{2.5} \\ \)

We have the final answer as

Hope this helps you

Rhenium (Re) has two stable isotopes, 185Re and 187Re. The average atomic mass of Rhenium is 186.2 amu.

The mole percent of 185Re in Rhenium can be calculated as follows:

Mole percent of 185Re = (number of moles of 185Re/total number of moles of Rhenium) × 100

To find the number of moles of 185Re, we need to know the fractional abundance of 185Re, which can be calculated as follows:

Fractional abundance of 185Re = mass percent of 185Re/atomic mass of Rhenium

Fractional abundance of 185Re = (185/186.2) × 100 = 99.35%

The mass percent of 185Re is 185 because it is the mass number of the isotope that we are interested in.

Since the atomic mass of Rhenium is the weighted average of the masses of the two isotopes,

we can assume that the mass percent of 187Re is (100 - 99.35) = 0.65%.

Now we can find the number of moles of each isotope in 100 g of Rhenium.

Number of moles of 185Re = (0.9935 × 100 g)/185 g mol⁻¹ = 0.53649 mol

Number of moles of 187Re = (0.0065 × 100 g)/187 g mol⁻¹ = 0.00034 mol

Total number of moles of Rhenium = 0.53649 + 0.00034 = 0.53683 mol

Therefore, the mole percent of 185Re in Rhenium is:(0.53649/0.53683) × 100 = 99.94% ≈ 100%

So the answer is: (b) 50%.

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Explanation:

what is the question jjsjmwujjduwhfjd

Answer:

Volume is a physical property of an object

One unit of volume is the milliliter

Liquids and solids have constant volumes

Explanation:

Answer:

a

Explanation:

Warm air and water both tend to rise while cooler air and water sink different parts of the oceans are heated unevenly, this causes the water to move in convection currents.

A stream of charged particles, such as electrons or ions, traveling through an electrical conductor or a vacuum is known as an electric current. The net rate of electric charge flowing through a surface or into a control container is how it is calculated.

Magnetic fields are produced by electric currents and are applied in motors, generators, inductors, and transformers. They result in Joule heating in conventional conductors, which lights up incandescent light bulbs.

Electromagnetic waves produced by time-varying currents are utilized in communications to transmit information.

Thus, option A is correct.

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