which species in each pair has the greater polarizability? explain. ca2 or ca ca ch3ch3 or ch3ch2ch3 ch3ch2ch3 ccl4 or cf

Answer:

n = 2

l = 1

m = 1

s = +1/2

Explanation:

₇N tiene la configuración electrónica;

1s2 2s2 2p3

Esto implica que este último electrón tiene los siguientes números cuánticos;

n = 2

l = 1

m = 1

s = +1/2

Este último electrón estará en un orbital de 2pz como lo muestran los números cuánticos enumerados anteriormente.

Answer:

m/s

Explanation:

One 'm' and one 's' in the numerator and the denominator 'cancel out' and you are left with  m / s

The ratio of 30.1 ml of acetic acid to 225 ml of vinegar, expressed as a volume percent (v/v) is 13.38%.

To calculate the volume percent (v/v) of the solution in a 225-ml bottle of distilled vinegar, substitute the following numbers for the formula of volume percent:

Volume of solute/volume of solvent is expressed as a percentage (v/v%); 100 v/v = 30.1 ml/225 ml, or 13.38%.

The ratio of the volume of a solute present in a solution to the volume of the solution as a whole is known as the volume percent of a solution.

In addition, this fraction needs to be increased by 100 since this sort of concentration, which is commonly computed for liquid- and gas-phase solutions.

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The net radiation is 174.24 W/m2 is the answer.

To calculate the net radiation, we need to consider the incoming solar radiation (K↓), the incoming longwave radiation (L↓), the surface albedo, and the surface emissivity.

The net radiation (Rn) can be calculated using the formula:
Rn = (1 - albedo) * K↓ + (1 - emissivity) * L↓ - (σ * T^4)

Given:
K↓ = 625 W/m2
L↓ = 345 W/m2
Albedo = 12%
Emissivity = 0.94
Surface temperature (T) = 17°C

First, convert the temperature from Celsius to Kelvin:
T(K) = T(°C) + 273.15
T(K) = 17 + 273.15 = 290.15 K

Next, calculate the net radiation:
Rn = (1 - 0.12) * 625 + (1 - 0.94) * 345 - (5.67 * 10^-8 * 290.15^4)

Simplifying the :
Rn = 0.88 * 625 + 0.06 * 345 - (5.67 * 10^-8 * 290.15^4)

Calculate each term:
Rn = 550 + 20.7 - 396.46

Add the terms:
Rn = 174.24 W/m2

Therefore, the net radiation is 174.24 W/m2.

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The question is incomplete, the complete question is;

As Danny was pouring cereal for his breakfast, he noticed that the cereal box says that the cereal contains 5 milligrams of iron per serving. Danny decided to perform an experiment to test this claim. He found that the cereal contains 4.6 milligrams of iron per serving. Based on Danny's measurement, the value reported on the label is ( CORRECT OR INCCORECT) because A: (IT IS DIFFERENT FROM THE VALUE DANNY MEASURED) B: (IT IS REORTED TO THE NEAREST MILLIGRAM) C: (IT USES THE SAME UNITS THAT DANNY USED).

Answer:

CORRECT because IT IS REORTED TO THE NEAREST MILLIGRAM

Explanation:

In mathematics, values may be rounded up or down as required. In the case of this measurement of cereals by Danny, it is customary to measure the amount of iron per serving to the nearest milligram.

As such, even though Danny found out that the actual amount of iron per serving in the cereal is 4.6 milligrams, the value reported on the cereal box is still correct because it was reported to the nearest milligram hence the value had to be rounded up.

Answer:atomic number 10 noble gas

Explanation:

CH3Br. The CH3Br has the smallest dipole moment among the given molecules, and dipole-dipole forces depend on the magnitude of the dipole moment. Therefore, CH3Br will have the smallest dipole-dipole forces. H2O and ClBr have larger dipole moments compared to CH3Br

CH3Br. The explanation is that CH3Br has the smallest dipole moment among the given molecules, and dipole-dipole forces depend on the magnitude of the dipole moment. Therefore, CH3Br will have the smallest dipole-dipole forces. H2O and ClBr have larger dipole moments compared to CH3Br, while ClBrCl has the largest dipole moment among the given molecules.
The main answer is that CH3Br has the smallest dipole-dipole forces.
Dipole-dipole forces occur between polar molecules. The strength of these forces is determined by the difference in electronegativity between the atoms involved in the bond. The greater the difference in electronegativity, the stronger the dipole-dipole forces.

Comparing the given molecules:

1. CH3Br: Carbon (C) and Bromine (Br) have an electronegativity difference of approximately 0.5.
2. H2O: Hydrogen (H) and Oxygen (O) have an electronegativity difference of approximately 1.4.
3. HCl: Hydrogen (H) and Chlorine (Cl) have an electronegativity difference of approximately 0.9.
4. BrCl: Bromine (Br) and Chlorine (Cl) have an electronegativity difference of approximately 0.2.

CH3Br has the smallest dipole-dipole forces among these molecules, as it has a relatively low electronegativity difference between the atoms involved in the bond.

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Alkynes have a carbon-carbon triple bond, whereas alkenes only have a carbon-carbon double bond. The generic molecular formula CnH2n identifies alkenes.

Alkenes are hydrocarbons with double bonds between carbon atoms. When it comes to molecules with one double bond, their usual formula is CnH2n (and no rings). Following the initial moniker for ethene, olefiant gas, alkenes are also referred to as olefins.

Because they are substances made up exclusively of hydrogen and carbon, alkenes are unsaturated hydrocarbons. They are unsaturated because they have two less hydrogen atoms than the comparable alkane due to the presence of a C=C double bond.

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Give a succinct description of how the various alkene reactants were combined to create the same result. The most stable intermediate carbocation will arise as a result of an electrophilic proton addition in the reaction between HCl and both alkenes.

The observed product is produced in both cases by adding Cl- to the tertiary carbocation that is produced. By figuring out the physical properties of the reactants and products, negative entropy in chemical processes may also be calculated. Gas molecules are widely spaced apart and move randomly in all directions, which results in high entropy in gases. Being a liquid converting into a solid, water freezing into ice is an entropy-reducing process. Due to the molecules' reduced freedom of movement, a solid has less chaos. A negative entropy reaction occurs when hydrogen and oxygen combine to generate water.

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Answer:

2

Explanation:

1. Take 2-3 crystals of potassium permanganate and dissolve them in 100 mL of water.

2. Take out approximately 10 mL of this solution and put it into 90 mL of clear water.

3. Take out 10 mL of this solution and put it into another 90 mL of clear water.

4. Keep diluting the solution like this 5 to 8 times.

5. Is the water still coloured?

The answer to this question is change in temperature will be 6.1 and specific specific heat capacity of metal will be 1698.36.

According to the formula of Calorimetry

Q = msΔT

where, Q = Quantity of heat absorbed (in joules)

M = Mass of water sample given (in kilogram)

S = specific heat capacity of metal

ΔT = Change in temperature

We have given,

Mass as 25 gram which is equal to 0.025 Kg.

Change in temperature as 6.1

Quantity of heat absorbed as 259 J

Applying to the formula of Calorimetry

Q = msΔT

259 = 0.025 × s × 6.1

s = 1698.36

So, specific heat capacity of metal came out to be 1698.36 and the change in temperature will be 6.1

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Answer: specific heat is 1.7

Explanation:

after you answer this question itll then tell you to find the specific heat

Answer:

K2S2O8

Explanation:

The method is attached above.

The unknown compounds are among a restricted set of substances that are provided for you in ascending mp and bp order. Applying your experimental results to these lists will help you narrow down the list of potential chemicals.

Compounds can be recognized by two tests, including

1. Physical assessment

2. Chemical assessment

Physical assessment

This is dependent on outward manifestations and qualities including State, Color, Texture, Smell (odor), Taste, and Feel.

Physical characteristics such as solubility, crystalline or amorphous nature Refractive index, melting point, and boiling point

pH, conductivity, functional groups, and other chemical assessment criteria. utilizing analytical approaches such as spectroscopy analysis and chromatography analysis.

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Solid lead nitrate is heated and forms solid lead oxide, gaseous nitrogen dioxide, and oxygen then it form of decomposition reaction

Lead nitrate is a white color inorganic powder with the chemical formula Pb ( NO₃)₂ when Lead nitrate decomposes it produces Lead oxide a yellow colored oxide of  brown colored Nitrogen dioxide gas, and colorless Oxygen gas and also it gives yellow colors

When lead nitrate is heated it decomposes to form lead oxide, nitrogen dioxide and oxygen from the reaction, we can see that lead nitrate decomposes on heating and forms lead oxide, nitrogen dioxide and oxygen thus, lead nitrate on decomposition gives lead oxide, nitrogen dioxide and oxygen and the lead nitrate and when solid lead nitrate heated it decomposes to produce light yellow solid lead monoxide, reddish-brown nitrogen dioxide gas and colourless oxygen gas

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Answer:

D

Explanation:

Offspring receive genes from both parents, they don't always have a recessive or dominant train but if they do have a dominant trait, it will always show while the recessive will only show if there is no dominant trait. For example: DD, Dr, and rr (D= dominant r = recessive)

Answer:D

Explanation:

i did this one too and it’s right

The main safety hazards of trimethylsilyl chloride (tmscl)  in the lab are,

It could cause severe eye burns.

It is harmful if absorbed through the skin. It could cause severe burns.

It may be harmful if swallowed. Causes severe digestive tract burns.

It may be harmful if inhaled. Causes chemical burns to the respiratory tract.

Prolonged or repeated skin contact may cause dermatitis.

Trimethylsilyl chloride, commonly referred to as chlorotrimethylsilane, is a silyl halide (organosilicon chemical) with the formula (CH3)3SiCl. It is also referred to as Me3SiCl or TMSCl. It is a volatile, colorless liquid that is stable when there is no water present. It has many applications in organic chemistry.

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Answer:

0 Celsius

Explanation:

its 0 degrees C

Answer:

0°C =  32°F

Explanation:

Hydrogen ion is smaller than hydrogen whereas hydride ion is bigger than a hydrogen atom .

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Answer: Mg + FeS ——> Fe + MgS

Explanation: Explain

circle represents a female

square represents a male

if its colored then it shows that they have the trait of whatever disease or mutation or something that you are studying

the horizontal line represents that they are married or a marriage (husband and wife)

the vertical line represents the connection between the parents and children

several children are represented through a bracket and a veritcal line

Answer:

The actual reaction to make water is a bit more complicated: 2H2 + O2 = 2H2O + Energy. In English, the equation says: To produce two molecules of water (H2O), two molecules of diatomic hydrogen (H2) must be combined with one molecule of diatomic oxygen (O2). Energy will be released in the process.

Explanation:

Answer:

Melting point

Explanation:

Answer:

Melting point

Explanation:

When a solid turns into a liquid, it is melting.  Therefore, it is the melting point.

To make a 50.0 mL solution of 1.7 M sodium carbonate (Na₂CO3), we need to determine the mass of Na₂CO3 required.

To calculate the mass of Na₂CO3 needed, we can use the formula:

Mass = Concentration x Volume x Molar Mass

First, we convert the given volume from milliliters to liters:

Volume = 50.0 mL = 50.0/1000 L = 0.05 L

Next, we substitute the given concentration and volume values into the formula:

Mass = 1.7 M x 0.05 L x Molar Mass of Na₂CO3

The molar mass of Na₂CO3 can be calculated by adding the atomic masses of sodium (Na), carbon (C), and three oxygen (O) atoms:

Molar Mass of Na₂CO3 = (2 x Atomic Mass of Na) + Atomic Mass of C + (3 x Atomic Mass of O)

After obtaining the molar mass value, we can substitute it into the formula and perform the calculation to determine the mass of Na₂CO3 required to make the 50.0 mL solution of 1.7 M sodium carbonate.

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When a direct current is passed through a 1.00 M aqueous solution of lithium chloride (LiCl), chlorine gas is observed as a product at the anode. Based on this information, lithium (Li) is formed at the cathode,

Correct justification is as follows:
1. In the electrolysis process, the anode is the positive electrode, and the cathode is the negative electrode.
2. Lithium chloride (LiCl) dissociates into lithium ions (Li+) and chloride ions (Cl-) in the aqueous solution.
3. Chlorine gas (Cl2) is produced at the anode due to the oxidation of chloride ions (2Cl- → Cl2 + 2e-).
4. Since chlorine gas is produced at the anode, the remaining lithium ions (Li+) in the solution will move towards the cathode.
5. At the cathode, lithium ions (Li+) are reduced to form lithium (Li) by gaining an electron (Li+ + e- → Li).

Therefore, lithium (Li) is the chemical species that is formed at the cathode during this process.

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Mass percent of dolomite in the soil sample is approximately 16.4%.

Dolomite is a type of mineral composed of calcium magnesium carbonate with the chemical formula CaMg(CO3)2.

Moles of HCl used in the titration:

0.2516 mol/L × 0.04620 L = 0.0116 mol HCl

Since the reaction between HCl and CaCO3 is a 1:1 stoichiometric ratio, the moles of CaCO3 in the soil sample is also 0.0116 mol.

0.0116 mol CaCO3 × 100.09 g/mol = 1.16 g CaCO3

Since dolomite is a mixture of calcium carbonate and magnesium carbonate (MgCO3), we need to convert the mass of CaCO3 to the mass of dolomite by using the ratio of the molecular weights of CaCO3 and CaMg(CO3)2:

100.09 g CaCO3 / (2 × 84.31 g CaMg(CO3)2) = 0.595

So the mass of dolomite in the soil sample is:

1.16 g CaCO3 / 0.595 = 1.95 g CaMg(CO3)2

mass percent = (mass of dolomite / mass of soil) × 100%

mass percent = (1.95 g / 11.87 g) × 100%

mass percent = 16.4%

Therefore, mass percent of dolomite in the soil sample is approximately 16.4%.

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Answer:

The sun

Explanation:

Because plants use sunlight to conduct photosynthesis which is the process the need to create energy

Although the elements' properties are the same for all of them, they are distinct from those of the compound.

A property with several buildings in one location is referred to as a real estate compound. Even while many of them serve as playgrounds for such famous and wealthy, they serve other functions as well.

Chemical characteristics of a compound are distinct from those of the elements its includes. When two or even more atoms get chemically linked, a material called a molecule is created (bonded).

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Explanation:

Because boiling point of water is not 100 degrees Celsius but it depends on atmospheric pressure. Liquid boils at temperature when partial pressure of liquid becomes equal to atmospheric pressure.