Are CO2 and SO2 polar or nonpolar?.

An atom is made up of three subatomic particles namely; protons, neutrons and electrons.

The proton is the positively charged particle in the nucleus of the atom while the electron is the negatively charged particle surrounding the nucleus.

The number of neutrons can be calculated by subtracting the atomic number of the element from the mass number.

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We do not just calibrate the gas thermometer at absolute zero because absolute zero cannot practically produced in o any lab setting.

Reason -

In order to cool a substance to absolute zero (-243-15°C), an unlimited amount of work would be required to remove the heat from it. Therefore, it is essentially impossible to create an environment with an absolute zero temperature.

Because absolute zero cannot effectively be manufactured in any lab setting, we cannot calibrate our thermometer at that temperature due to letter C. Since we cannot create absolute zero,

a thermodynamic system has its lowest energy at absolute zero degrees Celsius. It is equivalent to 459.67 degrees Fahrenheit and 273.15 degrees Celsius, respectively, on the thermometer.

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The test variable is manipulated while the outcome variable is observed.

When we use the term variable, our minds would have to go to something that has the ability to change. As such, when we are carrying out an experiment there is the variable that we manipulate and this would lead to a change in another variable.

The variable that we are able to manipulate as we are carrying out the experiment is what we call the test variable while the one that is changed due to this manipulation is called the out come variable.

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Answer:

Valence electrons are electrons located in the outermost energy level (Responsible for bonding.)

Explanation:

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In the activity series, the more active elements are found at the bottom and at the top. Option d.

The activity series is a way of organizing elements according to their reactivity.

The elements found at the bottom of the series are the most active, and those found at the top are the least active.

Knowing the activity series can help us predict how a reaction will proceed, and can be a useful tool when determining which compounds are most likely to form in a given reaction.

The elements at the bottom of the activity series are the most active, and the elements at the top are the least active. Knowing the activity of elements can help you understand the chemical properties of different materials and how they may interact with each other.

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H2C=CH-CH=CH-CH2-Mg-Br   + D2O------ H2C=CH-CH=CH-CH2-D   + DO- Mg-Br, H2C=CH-CH=CH-CH2-Mg- Br is Grignard reagent , it is highly polar in nature so it is highly reactive.

mecanism

H2C=CH-CH=CH-CH2-Mg- Br is Grignard reagent , it is highly polar in nature so it is highly reactive               .

H2C=CH-CH=CH -CH2-Mg-Br------ H2C=CH-CH=CH -CH2- + Mg+-Br

H2C=CH-CH=CH -CH2-  that intermediate show resonance so become more product.

H2C=CH-CH=CH -CH2-  <-----> H2C=CH-CH--CH=CH2 <-----> -CH2-CH=CH-CH=CH2

So two product possible

D2O----- OD- + D+

product1-    H2C=CH-CH=CH2 -CH2- + D+----      .H2C=CH-CH=CH-CH2-D major product

product2-   H2C=CH-CH--CH=CH2 +  D+-----   H2C=CH-CHD-CH=CH2

step-2 Mg+-Br + OD----- DO- Mg-Br

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The complete question is:

draw the structure of the organic product or products formed in the reaction.

if the mass of the sample is 272 grams, the number of moles of anhydrate present would be:

moles = 2

Generally, To determine the number of moles of anhydrate present, you would need to know the mass of the sample. If you have that information, you can use the formula:

moles = mass / molar mass

Where

mass is the mass of the sample in grams and

molar mass is the molar mass of the salt (in this case, 136 g/mol).

For example, if the mass of the sample is 272 grams, the number of moles of anhydrate present would be:

moles = 272 / 136

= 2

Please provide me with more information so that I could give you more accurate answer.

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To remove electrons in the photoelectric experiment, experimenters must try blue light. (B)

The photoelectric effect occurs when one of the metal plates is exposed to light, there is a current going to the other metal plate, as has been detected by the ammeter in the circuit above.

The ability of light to move electrons depends on its frequency. So if for example the light intensity is small but the frequency is large, the electrons will still be able to escape.

The energy that causes this movement of electrons is from the electromagnetic waves of light.

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The claim that sense neurons' cell bodies are located in the grey commissure, an expanded region of the dorsal root.

Dorsal nerve roots provide sensory neural signals to the central nervous system from the peripheral nervous system. Anatomically, a dorsal root ganglion develops from the dorsal root of the spinal nerves. For the central nervous system to react, they transmit sensory data from multiple peripheral receptors. It is generally recognised that DRG has a role in chronic pain. The first description of anaesthesia infiltration of the DRG was made in 1949. It has been possible to target the DRG using the dorsal root entry zone (DREZ), a nearby related neural target, dorsal rhizotomy or gangliectomy, conventional radiofrequency denervation, pulsed radiofrequency, and steroid injection.

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B) The number of Br- ions present in 1.00 moles of FeBr3 is 6.02E23.

To find the number of Br- ions present in 1.00 moles of FeBr3, we need to first determine the number of moles of Br- ions present in the compound. FeBr3 is a compound that contains 1 Br- ion per formula unit.

To find the number of moles, we can use the formula:

moles = number of atoms / Avogadro's number (6.02E23)

The number of moles of Br- ions in 1.00 moles of FeBr3 is:

1.00 moles x (1 Br- ion / 1 formula unit) = 1.00 moles

So, the number of Br- ions present in 1.00 moles of FeBr3 is 6.02E23 ions.

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Answer:

6.022 x [tex]10^{22}[/tex] molecules

Explanation:

One mole of any substance has 6.022x [tex]10^{23}[/tex] particles.

Mr of water: 16 + 2 = 18 g

moles of water given: 1.8/18 = 0.1 moles

Using ratio:

moles   :   molecules

   1        :    6.022x [tex]10^{23}[/tex]

 0.1      :          X

X = 0.1 x (6.022x [tex]10^{23}[/tex] )

X = 6.022 x [tex]10^{22}[/tex]

Minerals can be located using geochemical surveys and remote sensors that analyze satellite images. Following that, mining or quarrying is used to remove many minerals.

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12,005 barium atoms would have to be laid side by side to span a distance of 2.60 mm

Barium can be defined as a chemical element with the symbol Ba and atomic number 56.

To find the number of barium atoms that would have to be laid side by side to span a distance of 2.60 mm.

we need to divide the distance by the radius of one barium atom:

2.60 mm / 217 pm = 12,005

Therefore, 12,005 barium atoms would have to be laid side by side to span a distance of 2.60 mm.

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The boiling point in °C, of a 0.743 molal aqueous solution of KCL is 100.761 ∘ C

Δ T b≡ T b − T * b = I K b m ,

where:

The difference between the solution's boiling point, T b, and the pure solvent's boiling point, T * b, in degrees Celsius, is known as T b.

The van't Hoff factor, or the actual number of solute particles in solution, is denoted by the letter i.

The water boiling point elevation constant is K b = 0.512 C/m.

mol solute/kg solvent is the solution's molality, or m. Does the solute have a high or low volatility?

Considering complete dissociation.

KCl ( a q ) → K + ( q ) + Cl − ( a q )

Additionally, 1+1=2i, thus...

T b = T * b + i K b m

= 100 ∘ C + 2 ⋅ 0.512 ∘ C/m ⋅ 0.743 m

= 100.761 ∘ C

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Answer: simple and complex.

Explanation:These are also called simple sugars. They're found in refined sugars, like the white sugar you see in a sugar bowl. If you have a lollipop, you're eating simple carbs.

We must now strike a balance. This portion is all guesswork, but look at nitrogen on the right; there are two of them, so we put a "2" next to nitrogen monoxide.

We then count to check whether everything is balanced, and we'll notice that there are now two oxygens on the left and only one on the right, so we'll put a "2" next to the water. Count again, and lastly, a "2" next to the hydrogens will give us a balanced equation of:nitrogen monoxide.  Now there are rate laws. If your reaction was A+B—>C+D. The rate law is equal to some empirically established constant "k" times the concentration of the reactants increased to some value. power (also empirically determined) (also experimentally determined). So the general form is as follows: Alpha and Beta are just the order of the reactants. Because the question specifies the sequence of each reactant, your rate law should look like this.

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Based on its solubility in hexane, C₆H₁₄. Then the order of these compounds is C₃H₈ → CH₃OH → H₂O

Non-polar compounds are compounds that are formed due to the existence of a bond between electrons in the elements that form them. This happens because the bonding elements have the same or nearly the same electronegativity value.

Polar compounds have a high dipole moment, while nonpolar compounds do not have a dipole moment. This difference causes the two solutions to not bond.

Hexane is non-polar.

So, C₃H₈ is the easiest to dissolve because C₃H₈ is also non-polar.

H₂O is more polar than CH₃OH. So, CH₃OH will dissolve more easily than air. air will at least dissolve.

So that the order based on its solubility with hexane is C₃H₈, CH3OH, H₂O.

Your question may incomplete, for complete questions it's in the picture.

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The elements most likely to react in the same manner in a chemical reaction are those that are in the same group. It because of the same number of valence electrons.

The elements in the same group are most likely to react in the same manner in a chemical reaction. It is because their outer shells have the same number of valence electrons. In fact, the electrons are the component of an atom that is involved in reactions. Meanwhile, the protons and neutrons in an atom's nucleus are not involved in reactions.

For example:

- They all have one valence electron, which they easily lose when forming ions.

- They are easily reacted with water

- They possess low melting points and densities

- They are good electrical conductors.

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The three layers of the Earth's interior, stated in order from center to surface, are the core, mantle and the crust.

Earth is the planet we live on, one of eight planets in our solar system and the only known place in the universe to support life. Earth is the third planet from the sun, after Mercury and Venus and before Mars. It is about 150 million kilometers (about 93 million miles) from the sun. This distance, called an astronomical unit (AU), is a standard unit of measurement in astronomy. Earth is one AU from the sun.

The planet Jupiter is about 5.2 AU from the sun—about 778 million kilometers (483.5 million miles). Earth is the largest and most massive of the rocky inner planets, although it is dwarfed by the gas giants beyond the Asteroid Belt.

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The magnitude of vertical displacement is 2.73×10−6m as it exits the region between the plates.

The electron narrowly escapes impacting the top plate as it travels between the charged plates and feels an upward pull.

Due to its slower acceleration and higher mass, the proton won't hit any plates.

To calculate the vertical displacement as the object exits the plates, we once more use the kinematic equations.

The electron feels a force upward as it passes between the charged plates and narrowly avoids striking the top plate. It just misses the to plate by a small amount as it moves higher.

The distance it travels in the y-direction is 0.005m.

Time of flight is t=0.0200m1.60×106ms−1 =1.25zz10−8s

the initial y-velocity is zero.

so, 0.005m=12a(1.25×10−8s)2

or, a=6.40×1013ms−2

But also a=Fm= eEme

E= (9.1×10−31kg)(6.40×1013ms−2)1.60×10−19C =364NC−1

The proton will accelerate less and miss the plates since it is more massive. We once more utilise the kinematic equation to determine the vertical displacement when it occurs for the plates.

y=12at2=12eEmp(1.25×10−8s) =2.73×10−6m

The proton won't collide with a plate because, despite the fact that the electric force felt by the proton and electrons is identical, the electric force produces a smaller acceleration that is significantly greater than g, making it plausible to disregard gravity.

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Complete question is:

If the proton would not hit one of the plates, what would be the magnitude of its vertical displacement as it exits the region between the plates?

Answer:

Hydropower technologies generate power by using the elevation difference, created by a dam or diversion structure, of water flowing in on one side and out, far below, on the other.

Answer:

36g

Explanation:

H2 = 2

O = 16

18 = Mr of H2O

mass = moles x Mr

mass = 2 x 18

mass = 36g

The actual volume of molecules of gas is negligible as compared to the total volume of gas since C. Both A and B.

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Quartz silica tetrahedra (SiO2) are linked in a "perfect" three-dimensional framework. Each tetrahedron is connected to four other tetrahedra (with one oxygen shared at each corner),

The silicon-to-oxygen ratio is one-to-one. The silicon atom's outer shell includes four electrons. Each of the four electrons in the silica tetrahedra is shared with one of the four oxygen atoms that are linked. In turn, each oxygen atom shares one of the six electrons in its outer shell. Two single chains of silica tetrahedra join together by sharing the third oxygen in alternating tetrahedra to produce an atomic structure. A kind of silicate mineral in which silica tetrahedra are arranged hexagonally. The quartz silica tetrahedra (SiO2) are connected in a "perfect" arrangement. Framework in three dimensions. Each tetrahedron is connected to four other tetrahedra (with one oxygen shared at each corner),

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The one case that the surroundings do work on the system is q = -17 KJ, w = + 58 kJ. The correct option is A.

As work is negative, it indicates that the system is doing the work because when the system works, energy is expended and volume rises.

If the work is constructive, the system is being worked on because it is absorbing energy and its volume is decreasing.

Work = Force Distance is the formula for calculating work. The joule (J), sometimes known as the Newton meter (N m), is the SI unit for work.

Therefore, the correct option is A. q = -17 KJ, w = + 58 kJ.

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Answer: Statistics is the best way for Margarita to organize, interpret, and present her data.

Explanation:

The answer is  3.88 g/cm³ for density.

When you know the radius, you may use the formula volume = (4/3) π r3 to calculate the sphere's volume. Then, using the formula mass = volume density, you can calculate the mass by multiplying the volume by the density: mass = volume density. The formula mass = (4/3) π r3 density can also be used.

Given,

Radius of gold sphere is equal to 272 pm or 272 × 10 ⁻¹² m.

=  2.72 10 10 m 10²cm/m.

The diameter of an atom of gold is 2.72 × 10⁻⁸ cm,

volume of sphere = πr³

V(Au) = 4/3 · (2.72·10⁻⁸ cm)³ · 3.14.

The volume of one atom of gold is 8.43·10⁻²³ cm³

Mass of atom of sphere is equal to 3.27·10⁻¹³ ng · 10⁻⁹ g/ng

Gold atom mass is 3.27·10⁻²² g grams,

density of sphere = mass of gold atom ÷ Volume of gold atom

density of sphere = 3.27·10⁻²² g ÷ 8.43·10⁻²³ cm³

One gold atom has a density of 3.88 g/cm³

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Prediction 1 best shows what the population could look like after many generations. Because, the long beak traits is having more life time.

Each characteristics in a living thing is created by a respective genetic coding in its body. The genetic code which is responsible for a particular behavior or appearance is called a genetic trait.

Here, the prediction 1 is best . It already saying that long-beak hummingbirds are more likely to survive, that baby survived long enough to pass on its mutation, so the long-beak trait became more common over generations.

Prediction 2 says abut a  genetic trait which is less fit to survive. Hence, cannot affect the next generation population. Therefore, prediction 1 is best.

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Your question is incomplete. But your complete question probably was:

Prediction 1 :Two hummingbirds with short or medium beaks had a baby with a mutation in its genes for the long-beak trait.

Prediction 2 is best. A hummingbird could have been born with a mutation in its genes for the long-beak trait and lived for a little while.

The value for k that transforms the function f into g is -3.

What is the meaning of value for k?

Value for k is a term used in mathematics to refer to the number of elements in a set. The value of k depends on the context of the problem. It could be any numerical value, depending on what it is being used for.

Given : g(x) = f(x) + k

Taking two points from the graph (1,0) and (-1, 2)

slope =   [tex]\frac{2-0}{-1-1}[/tex] =  [tex]\frac{2}{-2}[/tex] = -1

The equation will be,

                       y-0 = -1 (x-4)

                          y= -x + 4

                        f(x)= -x + 4

  So,                g(x)= f(x) + k

                    -x + 1= -x + 4 + k

                          k= 1+4

                          k= -3

Therefore, the value for k= -3.

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Answer:

C Two

Explanation:

no of proton = no of electron