Identify: What type of eclipse is shown in the
diagram?

The pressure of the Moxie's tank in the summer will be 110.5 atm.

The pressure law states that  for a given mass a gas, the pressure exerted on the sides of its container is directly proportional to its absolute temperature provided the volume is constant.

Mathematically, this law can be written as;

P₁/T₁ = P₂/T₂

where;

From formula above, as the temperature of the gas increases, its pressure increases as well.

Thus, the pressure that will be observed in the Moxie's tank during the summer will be greater than 50 atm since the temperature in summer is greater than the temperature in winter.

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The complete question is below:

If the Moxie's tank has an initial pressure of 50 atm in the winter, what will be * 1 point

the pressure in the summer?

A. 5.88 atm

B. 22.6 atm

C. 110.5 atm

Based on the initial and final volume of solution in each pipette, pipette A shows that 4 mL of the liquid has been dispensed.

A pipette is a lab apparatus that is used for dispensing liquids.

The volume of the liquid dispensed from the pipette is obtained bt subtraction of the initial volume of solution from the final volume of solution in the pipette.

Comparing the volume of solution dispensed from each pipette:

Volume dispensed from pipette A = 9 mL - 5 mL

Volume dispensed from pipette A = 4 mL

Volume dispensed from pipette B = 9 mL - 4 mL

Volume dispensed from pipette A = 5 mL

Therefore, the volume of solution dispensed from each pipette is as calculated above.

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If I was given a mixture of iron filings and sand, the explanation I would give to prove that it is a mixture is that I would show that they are a homogeneous mixture.

The procedure that I would give to show they are a mixture is by showing how they can be separated and this is through the use of a magnet.

This is because sand is non-magnetic and iron fillings can be used as magnets.

This refers to the material that contains two or more elements that are NOT chemically bonded.

Hence, we can see that the explanation of mixture is given below.

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Answer:

10 grams

Explanation:

The mass equals the density times the volume it displaces, so 5*2 = 10 grams. If you look at the units, you will see that they also cancel out.
you have 5 grams / ml, and 2 ml, so when 5 grams/ml and 2 ml are multiplied, the result is 10 grams*ml/ml, and since ml/ml = 1, the final unit of the answer would be 10 grams.

Aspects covered by Bohr's atomic model are : Electrons do not have energy, The energy is determined by the orbit.

Features of Bohr's atomic model are:

1) Electrons revolve around the nucleus in orbits .Each orbit has a definite energy called as energy shell or energy level. Energy of electrons is determine by the energy levels.

2) Orbits is designated as K, L, M, N shell.

3) When an electron jumps from a higher energy level to lower level it emits energy and when it jumps from lower to higher energy level it absorbs energy.

thus, Aspects covered by Bohr's atomic model are : Electrons do not have energy, The energy is determined by the orbit.

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Answer:

It’s the 1st option and 4th option.

Explanation:

E is standard the electrode potential of a reaction, increasing the value of K will Increase the forward reaction.

A measure of the reducing power of an element or compound. The IUPAC Gold Book defines it as Split the reaction into two half-reactions. where n is two. The following example shows how to use the Nernst equation to calculate the potential of an electrochemical cell under non-standard conditions.

If both half-reactions have different numbers of electrons multiply both equations by the appropriate number so that n is the same in both equations, then use this value of n in the equations before generating electricity. increase. The energy used is released during spontaneous chemical reactions. When the applied external potential is greater than the Ecell of the electrochemical cell, the reaction is reversed. It started working as an electrolytic cell and vice versa.

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Answer: Lower Left!

Explanation: I just took the quiz.

According to the given statement The density of the element is 6.82 g/ml.

Density is the measure of how firmly a material is packed. It has such definition since it is the mass per unit volume. Numeral for density D or The formula for calculating density is m/V, where m is the mass and V is the volume of the object.

Grams per cubic centimeter are indeed a typical measurement unit for density. For example, while Earth has a density of up to 6.5 grams, water has a density of 1 grams per cubic centimeter. Another method to state density is in kilograms per cubic meters (in metre-kilogram-second or SI units).

Mass of solid (M)= 10.23g

Initial volume of water V[tex]_1[/tex] = 20 ml

Final volume of water V[tex]_2[/tex] = 21.5 ml

Volume of solid (V) = V[tex]_2[/tex]– V[tex]_1[/tex]

= 21.5 - 20

= 1.5 ml

Density of element (D) = M / V

= 10.23g / 1.5 ml

= 6.82 g/ml.

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Answer:

Explanation:

cg c g cv

The choice that goes in the green box to cancel out mg is 10⁻³ gram. The correct option is B.

Conversion Factor: To convert from milligrams (mg) to grams (g), we use the conversion factor that 1 gram (g) is equal to 1000 milligrams (mg), or 1 g = 1000 mg.

To cancel out the unit "mg" and obtain the desired unit "g," we need to use the conversion factor with the appropriate power of 10. In this case, since we want to cancel out milligrams (mg), which is 10⁻³ times smaller than a gram (g), we use the factor 10⁻³ g/mg.

Therefore, by multiplying 43 mg by the conversion factor 10⁻³ g/mg, we can cancel out the milligram unit and find that there are 0.043 grams in 43 milligrams.

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The complete ionic equation Ca(OH)2 + HClO4 → H2O + Ca(ClO4)2.

A complete ion equation describes all ions dissociated in a chemical reaction. The net ion equation cancels out ions appearing on either side of the reaction arrow. This is because they do not inherently participate in the desired reaction. An annihilated ion is called a spectator ion.

The net ionic equation describes only the species participating in the reaction while the full ionic equation also includes the spectator ion. The net ion equation must be balanced by both mass and charge. Mass balance means ensuring that the mass of each element on the product side and the educt side is equal.

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The frequency of photon is 2.04 × [tex]10^{15}[/tex] Hz.

E = h × f

Here, E = energy,  given = 8.42 eV = 8.42 × 1.6 ×[tex]10^{-19}[/tex] J = 1.35 × [tex]10^{-18}[/tex] J

h = plank's constant = 6.626 × [tex]10^{-34}[/tex] Js

f = frequency

So, f = E/h

f = 1.35 × [tex]10^{-18}[/tex] J/6.626 × [tex]10^{-34}[/tex] Js

f = 2.04 × [tex]10^{15}[/tex] Hz

Hence, the frequency of photon is 2.04 × [tex]10^{15}[/tex] Hz.

Frequency is the quantity of occurrences of a repeating occasion in line with unit of time. it is also every now and then known as temporal frequency to emphasize the comparison to spatial frequency, and regular frequency to emphasize the assessment to angular frequency.

The variety of periods or cycles according to second is called frequency. The SI unit for frequency is the hertz (Hz). One hertz is similar to one cycle consistent with second.

Frequency is an critical parameter used in technology and engineering to specify the temporal charge of alternate observed in oscillatory and periodic phenomena, which include mechanical vibrations, audio alerts, radio waves, and light.

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The densities of the substances are;

Aluminum bar = 2.6 g/ml

PE rod = 0.91 g/mL

Iron bolt =  5.65 g/mL

The term density is defined as the ratio of the mass to the volume of the object. We know that mass is an intrinsic property. This means that the density of the object can be used to identify what the object that is under study is. Let us now try to find the density of each of the objects.

In this case, we have the mass and the volumes of the objects as they have been shown in the table that have here. We can now be able to find the volume of each of the objects.

Density of aluminum bar = 39 g/ 15 g/mL = 2.6 g/ml

Density of the PE rod = 21 g/23 mL = 0.91 g/mL

Density of iron bolt = 39 g/6.9 mL = 5.65 g/mL

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The atom belongs to a group two element and the atom is in period three since there are three shells.

The term electron configuration has to do with the way and manner in which the electrons in an atom are arranged. It is usual the there are two electrons that reside in the shell that is closest to the nucleus.

The other shells after this shell can hold a maximum of about eight electrons on the same shell until we arrive at the final shell of the atom. The element thus shown belongs to group two and period  because there are two electrons in the outermost shell and there are three shells present.

Hence, the element belongs to the alkaline earth metals.

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Length x width x height can define the volume of an object.

Volume can be defined as the space which is occupied by an object in space. It is also called the capacity of the object. The volume of an object also refers to the amount of space it fills. Very large Volumes can be measured in cubic meters (m3) while the other hand, while the Smaller volumes can be measured in cubic centimeters (cm3) as well as cubic millimeters (mm3). Volume has three dimensions i.e. length, width, and height whereas area has two dimensions i.e. length and width. We can calculate the volume of an object with the help of a formula i.e. Volume = length × width × height.

So we can conclude that volume of an object can be calculated with the help of the formula i.e. Volume = length × width × height.

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The solar panel would represent energy, so a solar panel would be one of them!

Studying cell illness models helps researchers better understand how diseases arise, which in turn helps them find novel molecular targets for particular therapeutics. Cell disease models can also be utilized to assess prospective therapeutic strategies. Thus, option C is correct.

The two-piece plant cell model depicts the normal plant cell's structures as seen through an electron microscope. The cytoplasm and all significant organelles are depicted in raised relief and colour on the plant cell. The plant cell model has the following features: cellular wall.

The process of generating a digital reproduction of each procedure, piece of machinery, and workflow within a plant is known as “plant modelling.”

Therefore, A solar panel would be one of them, since it would stand in for electricity.

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The unit of both types of energy is the joule (kg × m² × s⁻²).

Show the units of kinetic energy

The equation for kinetic energy is/2 × m × v²

[K] = kg × (m/s)²

[K] = kg × m² × s⁻² = J

Show units of gravitational potential energy

The formula for the potential energy of gravity is: g × h

[G] = kg × m/s² × m

[G] = kg × m² × s⁻² = J.

Gravitational potential energy is the energy stored in an object due to its height above the ground. This depends on the mass of the object, the acceleration due to gravity, and the height of the object. Kinetic energy is the energy that an object has when it moves. One of the most important similarities between potential energy and kinetic energy is that they can be converted into each other's energy forms. When a force is applied to potential energy, it is converted into kinetic energy.

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Answer:

2.75 x 10^24 atoms

Explanation:

1 mole = 6.022 x 10^23 atoms

4.56 moles has:

4.56 x 6.022 x 10^23 = 2.75 x 10^24 atoms

Two quantities in the ideal gas equation that are directly proportional are Pressure and Temperature

In ideal gas law, PV = nRT

A quantity can be directly or indirectly proportional to each other. In case of directly proportional, if one quantity increases other would also increases and vice versa. In the case of indirectly proportional, the opposite happens i.e., increase in one quantity would result in decrease of another.

As we can see in the ideal gas law, increase in pressure (P) would increase number of moles (n) and Temperature (T). Similarly, increase in volume (V) would also increase number of moles (n) and Temperature (T).

If the law was rearranged, we can observe that increase in pressure would decrease the volume and vice versa.

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The statement that accurately contrast a compound and a mixture is; Mixtures contain two or more elements physically combined and compounds contain two or more elements chemically combined.

The term mixture has to do with a combination of two or more substances that are not chemically combined hence they can easily be separated by the use of physical methods. Hence they are not in any way compounds.

A compound is a substance that has been formed by the chemical combination of the atoms of elements. This implies that the components of a compound can not be separated by physical methods.

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The selection of hydroboration-oxidation reagents to carry out the transformation was made for the following reasons:

Reagents for oxymercuration and demarcation produce the Markovnikov product.

The anti-Markovnikov product of addition is produced by reagents for hydroboration oxidation.

Anti-Markovnikov product without sigmatropic rearrangement is necessary for the reaction.

Acid and water are added to produce the Markovnikov product.

The formation of alcohol depends on the process of hydroboration-oxidation, it should be mentioned. Instead of employing other reagents, it is required for the transformation because hydroboration-oxidation reagents produce the anti-Markovnikov product of addition.

The conversion of alkenes into neutral alcohols is accomplished through the organic chemical reaction known as hydroboration oxidation. This is accomplished via a two-stage procedure that entails both an oxidation and a hydroboration step. An addition is made as a net result.

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Answer: The answer is 40.078

Explanation: Ezzy

Answer:

mol CCl4 = 1.294 mol

Explanation:

moles (n) = (mass)/(molar mass)

∴ mass = 199 g CCl4

∴ molar mass = 153.82 g/mol

⇒ nCCl4 =  199 gCCl4 / 153.82 g/mol

⇒ nCCl4 = 1.294 mol CCl4

The concentration of each substance  in mg/L are;

Zinc -  9.8 * 10^-4 mg/L

Copper - 1.1 * 10^-4 mg/L

Lead - 4.7 * 10^-3 mg/L

Mercury - 2.5 * 10^-4 mg/L

Let us recall that the term that is called concentration is used to describe the amount of substances that is present. Thus, there are several units of concentration that are in common use to day and these include;

In this case we are asked to convert the concentration of the object as it has been given in mM to mg/L as we can see above in the question.

We have that;

RMM mg/L = 1mM

Let us now convert each one;

Zinc = 1/65 * 6.42 × 10^–2 mm

= 9.8 * 10^-4 mg/L

Copper = 1/63.5 * 7.16 × 10–3 mm

= 1.1 * 10^-4 mg/L

Lead  = 1/207 *  0.965 mm = 4.7 * 10^-3 mg/L

Mercury = 1/201 *  5.00 × 10–2 mm = 2.5 * 10^-4 mg/L

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Answer:

1.39 x 10^25 atoms

Explanation:

12 amu of C has 6.02 x 10^23 atoms

so 276.23 amu has

(276.23)(6.02 x 10^23)/(12) = 1.39 x 10^25 atoms

The mass of sodium phosphate needed to make 375 mL (0.375 L) of a solution with a molarity of sodium ions of 0.900 M is 18.45 g.

Because each mole of sodium phosphate produces 3 moles of sodium ions upon dissociation, the molarity (c) of the sodium phosphate solution will be c = 0.900 M / 3

c = 0.300 M.

Now we can use the molarity and the volume of the solution (V) to find the required number of moles (n) of sodium phosphate.

c = n/V ⇒ n = c*V

n = 0.300 M * 0.375 L

n = 0.1125 mol

Finally, using the molar mass of sodium phosphate (M = 164 g/mol), we can calculate the mass (m) of sodium phosphate required:

n = m/M ⇒ m = n*M

m = 0.1125 mol * 164 g/mol

m = 18.45 g

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Answer:

Atoms that contain an unstable combination of neutrons and protons, or excess energy in their nucleus.

Explanation:

cuz

The Xenon gas sample will have the volume of  4.54L at the temp of 247.26 k.

When pressure is constant, a gas's volume and temperature are directly proportional.

When pressure is constant, the volume to temperature ratio remains constant.

The term "Charles' law" or "Gay-Lussac's law" refers to this relationship.

Isobaric processes are those that operate at constant pressure.

V ∝ T (P constant)

V1/T1 = V2/T2 = constant

Here,

V1= 7.72l

T1 = 421k

V2 = 4.54l

T2 = ?

7.72/421 = 4.54/T2

7.72 × T2 = 4.54 × 421

T2 = 4.54 × 421

            7.72

T2 = 247.26 k

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Answer:

C. trigonal Planar

Explanation:

Tetrahedral is 4 connected

Bent is 2 connected with a lone pair

Linear is 2 connected in a line

Trigonal Planar is the one with 3 connected.

Answer:

C: Trigonal Planar

Explanation:

Tetrahedral is four connected

Bent is 2 linked with a lone pair

Linear is two connected in a line

Trigonal Planar is the one with 3 connected.

Answer:

Toxic pollution

Explanation:

Gasoline is a harmful chemical

Answer:

2 molecules

Explanation:

thete are 2 moleculed in 2NH3