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The compound which has the bond with the smallest dipole moment is- d. \(H_{2}Te\).

Moving up a column on the periodic table causes electronegativity to increase and moving down a group (column) causes electronegativity to decline. As a consequence, as the hydrogen-chalcogen bond moves up the column, its electronegativity difference and dipole moment grow. As a result, from biggest to smallest, the four bonds' dipole moments are as follows: H-O > H-S > H-Se > H-Te. The magnitude of the dipole moment along the link between the atoms is proportional to (and indicative of) the differential in electronegativity between two covalently bonded atoms. Dipole moments between atoms are greater when there are larger differences in electronegativity.

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Answer:

0.2322 moles of ammonia

Explanation:

given:

mass of ammonia: 3.956 g

unknown: moles of ammonia

=\(given\frac{1 mol}{MolarMass}\)

=\(3.956\frac{1}{17.030}\)

=0.2322 moles of ammonia

1. I noticed that the soil particles settled out of the water with the larger, heavier particles settling out first and on the bottom, and each layer has smaller and lighter particles in it.

2. Sand settled on the bottom because they are heavier and have more mass than the smaller particles such as silt and clay.

3. Yes, this is a good way to determine particle size distribution. The method used in the experiment allows for the separation of soil particles based on their size and weight, which is a good indicator of their distribution in the soil sample.

4. The results in this experiment may look different when done in different locations because the particle size distribution of soil can vary depending on the location, climate, and geology of the area. Soils in different locations may have different compositions, including different amounts of sand, silt, and clay, which can affect the results of the experiment. Additionally, the sedimentation rate of the particles can also be influenced by factors such as the temperature, the presence of organic matter, and the presence of clay minerals, which can further affect the results.

Answer:

C

Explanation:

Temperature, humidity, and pressure are all the same through an air mass.

Answer:

The nucleus consists of 9 protons and 10 neutrons.  Nine electrons occupy available electron shells.

Answer:

the answer would be 2

Explanation:

Answer:

B) Amount of matter within an object

C) amount of matter within a given volume

Explanation:

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Answer:

calculate the formulae mass of mgs04 (c=12, fe=56, mg =24,s=32,0=16

In the molecule, CH₂NOH, the hybridization states of the carbon (C), nitrogen (N), and oxygen (O) atoms can be determined based on the number of sigma bonds and lone pairs around each atom. From this, the hybridization of Carbon (C) is sp³, the hybridization of Nitrogen (N) is sp² and the hybridization of oxygen is sp³ hybridized

Carbon (C): In CH₂NOH, the carbon atom is bonded to two hydrogen atoms and one oxygen atom. It also has one lone pair of electrons. Therefore, the carbon atom is sp³ hybridized.

Nitrogen (N): The nitrogen atom in CH₂NOH is bonded to one carbon atom and has two lone pairs of electrons. Hence, the nitrogen atom is sp² hybridized.

Oxygen (O): The oxygen atom in CH₂NOH is bonded to one carbon atom and one hydrogen atom. It also has two lone pairs of electrons. Thus, the oxygen atom is sp³ hybridized.

Hence, the hybridization of all the elements is given above.

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The change in pressure or difference here is  due to the changes in air density  since air density is related to temperature, the Warm air is less dense  compare to cooler air, in getting  wind there needs to be a pressure gradient,  so that there will be higher pressure than the other. Wind will then start blowing from the high pressure to the low pressure.

One side will have a higher pressure compare to the other  ans this can be attributed to how the wind requires a pressure gradient then wind will begin to blow from the area of high pressure to that of low pressure.

It should be noted that the density and temperature of air masses are two factors that affect changes in air pressure.

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Option A is correct which says when a liquid changes into a solid, the molecular motion decreases.

What is molecular motion?

The movement of its component atoms or molecules in a certain direction is referred to as molecular motion.

There is a decrease in the molecular motion when liquid moves towards a solid state. This is because the kinetic energy of the molecules decreases as molecules are moving from a less uniform space to a more uniform phase. As a result, molecular motion decreases.

Hence, option A is correct

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Answer: All cells are made from the same major classes of organic molecules: nucleic acids, proteins, carbohydrates, and lipids.

Explanation: please mark as brainliest

The weighted average of the atomic masses of the naturally occurring isotopes of an element is the

A) atomic mass of the element

Isotopes are elements that have the same Atomic Number (Proton)

Atomic mass is the average atomic mass of all its isotopes

So  Isotopes have the same atomic number(the same number of protons and electrons), but different mass numbers (different neutron numbers)

Avg atomic mass = m1.%m1 + m2.%m2....mn.%mn

m1 = isotope 1

m2 = isotope 2

% = abundance of the elements in nature

The weighted average of the atomic masses of the naturally occurring isotopes of an element is the : A) atomic mass of the element.

Isotopes can be defined as two or more forms of a chemical element that contains equal number of protons (atomic number) and electrons but different number of neutrons.

The isotope of any chemical element is denoted by \(C^Z_A\)

Where;  

In Chemistry, the atomic mass of a chemical element is weighted average of the atomic masses of the naturally occurring isotopes and its units is u.

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13.29 X \(10^{21}\) moles of NaCl are in a pinch of salt and a pinch of salt has

approximately 3.29x\(10^{21}\) formula units of NaCl.

The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is “mol”.

We know that 1 formula unit of sodium chloride has a molar mass of 58.44g/mol

Hence;

Mass of 1 formula unit = 58.44g

Mass of 3.29 x \(10^{21}\) formula units

13.29 x \(10^{21}\) x 58.44g

776.6676 x \(10^{21}\)

Moles =\(\frac{776.6676 X 10^{21} }{ 58.44g}\)

Moles = 13.29 X \(10^{21}\)

Therefore;

13.29 X \(10^{21}\) moles of NaCl are in a pinch of salt.

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Peanuts, or milk please leave like if right

Answer:

air

Explanation:

A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen. A pure substance does not have to be of a single element or compound.

Answer:

By observing chemical reactions, we are able to understand and explain how the natural world works. Chemical reactions turn food into fuel for your body, make fireworks explode, cause food to change when it is cooked, make soap remove grime, and much more.

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Answer:

Explanation:

C - Mix ice with water until equilibrium is reached but some ice remains that is no longer melting.

Answer:

minimizing the use of cars can help save the ozone layer by ​Minimizing the amount of gasoline which damages the ozone layer.

therefore the ozone layer is preserved.

have a nice day.

Answer:

As per Provided Information

Distance travelled by sound impulse through an aluminium rod is 1500 metres .

We have been asked to determine the time taken by the sound impulse to travel through aluminium rod .

As we know

Speed of sound in aluminium rod is 5100m/s .

Using Formulae

\( \boxed{\bf \: Time \: taken_{(Sound \: impulse)} = \cfrac{distance \: travelled \: by \: sound \: impulse}{speed \: of \: sound \: impluse}}\)

Substituting the value and we obtain

\( \sf \qquad \longrightarrow \: Time \: taken_{(Sound \: impulse)} = \dfrac{1500}{5100} \\ \\ \\ \sf \qquad \longrightarrow \: Time \: taken_{(Sound \: impulse)} = \cancel\dfrac{1500}{5100} \\ \\ \\ \sf \qquad \longrightarrow \: Time \: taken_{(Sound \: impulse)} = 0.29 \: s\)

Therefore ,

So, your answer is 0.29 s .

Answer:Its c

Explanation:

Let us use a double displacement reaction of Lead (II) Nitrate and Potassium Chromate to produce Lead (II) Chromate and Potassium Nitrate to practice balancing an equation.

We begin with the base equation provided in the question.Pb(NO3)2(aq)+K2CrO4(aq)→PbCrO4(s)+KNO3(aq)

Looking at the the atom inventory ReactantsPb=1NO3=2

K=2CrO4=1

Products

Pb=1

NO3=1

K=1

CrO4=1

We can see that the

Kand NO3

are imbalanced.

If we add a coefficient of 2 in front of the

KNO3

this will balance the equation.

Pb(NO3)2(aq)+K2CrO4(aq)→PbCrO4(s)+2KNO3(aq)

Explanation:

Molality of a solution is the number of moles of solute dissolved in 1 Kg of the solvent. Thus, if one gram molecule of a solute is present in 1 kg of the solvent.

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The concentration of the \(CH3NH2\) solution is 1.84 M.

The balanced equation for the reaction between \(HCl\)and \(CH3NH2\) is:

\(CH3NH2 + HCl → CH3NH3+Cl-\)

From the equation, we can see that the acid and base react in a 1:1 molar ratio. Therefore, we can use the following equation to calculate the concentration of the \(CH3NH2\)solution:

\(M(CH3NH2) x V(CH3NH2) = M(HCl) x V(HCl)\)

where:

\(M(CH3NH2)\)= concentration of \(CH3NH2\) solution (unknown)

\(V(CH3NH2)\) = volume of \(CH3NH2\) solution used (unknown)

\(M(HCl)\) = concentration of\(HCl\)solution (1.84 M)

\(V(HCl)\) = volume of \(HCl\) solution used (28.25 mL or 0.02825 L)

Solving for \(M(CH3NH2)\), we get:

\(M(CH3NH2) = (M(HCl) x V(HCl)) / V(CH3NH2)\)

\(M(CH3NH2)\) = (1.84 M x 0.02825 L) / 0.02825 L

\(M(CH3NH2)\) = 1.84 M

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Answer:

is it fall and winter................

Explanation:

Enthalpy of reaction is not a reliable indicator of whether a reaction is spontaneous.

While a spontaneous reaction releases energy, the enthalpy change of a reaction only takes into account the heat released or absorbed during the reaction. Enthalpy change does not consider the change in entropy (randomness/disorder) of the system, which is an important factor in determining whether a reaction is spontaneous. Therefore, it is possible for a reaction with a positive enthalpy change to be spontaneous, if the increase in entropy is large enough to overcome the energy input required to drive the reaction. Conversely, a reaction with a negative enthalpy change may not be spontaneous if the decrease in entropy is too significant. Therefore, enthalpy of reaction alone is not a reliable indicator of whether a reaction is spontaneous.

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The 6 models of the atom:

1. John Dalton's atomic model: Daltons Billiard Ball (Solid Sphere) Model

2. J.J. Thomson's model: Plum Pudding model

3. Ernest Rutherford's model: Nuclear model

4. Niels Bohr's model: Planetary model

5. Erwin Schrdinger's model: Electron Cloud Model/Quantum Model

6. Wave mechanical model

The smallest component that makes up a chemical element is an atom. Atoms that are neutral or ionized are the building blocks of all solids, liquids, gases, and plasma. A normal atom is 100 picometers across, which is incredibly small. Because of quantum effects, they are so small that it is impossible to predict their behavior with sufficient precision using classical physics, as if they were, say, tennis balls. One or more electrons are attached to the nucleus of every atom, which is made up of a nucleus. Protons and neutrons, in various numbers, make up the nucleus. Neutrons exist only in the most prevalent type of hydrogen. An atom's nucleus makes up more than 99.94% of its mass.

how to build 6 individual atoms?

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It provides the plant cell with structure and support, along with protection from bursting due to turgor pressure

Explanation:

To make dilutions for the spectrophotometer experiment, you will need to use the formula: C1V1 = C2V2 C1 represents the initial concentration of the stock solution, V1 represents the initial volume of the stock solution, C2 represents the desired concentration of the diluted solution, V2 represents the final volume of the diluted solution.


To make the dilutions, you will need to determine the desired concentration for each diluted solution. Let's say you want to make five dilutions. You will start with a stock solution, which has a known concentration. For each dilution, you will use the formula C1V1 = C2V2 to calculate the volumes required. First, you will select the volume of the stock solution you want to use (V1).

Then, you will select the desired concentration for the diluted solution (C2). Next, you will calculate the volume of the diluted solution needed (V2). For example, if you want to dilute the stock solution by a factor of 10, you would divide the initial concentration (C1) by 10 to get the desired concentration (C2). Finally, using the formula C1V1 = C2V2, you would solve for V2. Once you have the volume of the diluted solution, you can add the appropriate amount of solvent to reach the desired volume. Repeat this process for each dilution, adjusting the desired concentration and volumes accordingly.

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Federal Marshals will receive trafficking penalty for attempting smuggling.

Human trafficking, also referred to as trafficking in persons, is a crime that entails forcing or coercing a person to perform work or services or engage in sexual acts for monetary gain. The exertion of pressure may be covert or obvious, physical or psychological.

A conviction for keeping someone in servitude carries potential fines and a maximum 20-year prison sentence in a federal facility. The maximum penalty is life in prison if there is a death as a result of the violation or if it involved kidnapping, sexual assault, or other aggravating circumstances.

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