4. You have learned about the common characteristics of inner planets and outer planets. Explain
how these characteristics are verified observations and not just
the opinions of scientists. I’ll give you BRAINLIST PLEASE HELP I HAVE TO RIGHT IT DOWN!!

Answer:

The magnesium atom is larger.

Explanation:

The magnesium atom is larger because it is on the left side of the Periodic Table (period 3 and group 2) where the atomic radius is larger.

Atomic radius is the distance from the center of the nucleus of an atom to the most external electron shell.

The greater the columbic attractions, the closer the protons in the nucleus are to the electrons in the outer layers, making the size of the atom smaller.

The law of mass action for the given equation is that the rate of the forward reaction is proportional to the product of the concentrations of the reactants (a and b) raised to their stoichiometric coefficients (2 and 1, respectively), while the rate of the reverse reaction is proportional to the product of the concentrations of the products (c and d) raised to their stoichiometric coefficients (1 and 3, respectively). Therefore, the expression for the equilibrium constant (Kc) is:

Kc = [c][d]^3 / [a]^2[b]

where [ ] represents the concentration in moles per liter. This equation relates the equilibrium concentrations of the species in the reaction to the value of Kc, which is a constant at a given temperature.

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The ionic equation for dissolution of a slightly soluble ionic compound can be written by separating the compound into its respective ions.

Let's take a look at an example using the compound silver chloride (AgCl):

AgCl (s) ⇌ Ag+ (aq) + Cl- (aq)

In this equation, AgCl (s) represents the solid silver chloride, while Ag+ (aq) and Cl- (aq) represent the silver and chloride ions in the aqueous solution, respectively.

To determine the solubility product expression (Ksp) for a slightly soluble ionic compound, we need to consider the molar concentrations of the ions involved. The Ksp expression is the product of the molar concentrations of the ions, each raised to the power of their respective stoichiometric coefficients. For silver chloride (AgCl), the Ksp expression is:

Ksp = [Ag+] * [Cl-]

Where [Ag+] represents the molar concentration of the silver ions and [Cl-] represents the molar concentration of the chloride ions.

It's important to note that the solubility product (Ksp) is a constant value at a given temperature. The magnitude of the Ksp value indicates the extent to which the compound dissociates in water. A higher Ksp value suggests a higher solubility of the compound.

Here are a few more examples of slightly soluble ionic compounds and their respective ionic equations for dissolution and Ksp expressions:

1. Lead(II) iodide (PbI2):
PbI2 (s) ⇌ Pb2+ (aq) + 2I- (aq)
Ksp = [Pb2+] * [I-]^2

2. Calcium carbonate (CaCO3):
CaCO3 (s) ⇌ Ca2+ (aq) + CO3^2- (aq)
Ksp = [Ca2+] * [CO3^2-]

Remember, the ionic equation for dissolution shows the dissociation of the compound into its constituent ions, while the Ksp expression represents the product of the molar concentrations of these ions. Understanding these concepts helps us determine the solubility and behavior of slightly soluble ionic compounds in aqueous solutions.

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The consumption function based on the information in Table 5 is as follows: C = 2577 + 0.75Y. It is given, Consumption function, C = Ca + cY Where, Ca is autonomous consumption expenditure, c is marginal propensity to consume (MPC)Y is disposable income

The consumption function based on the information in Table 5 is: Table 5Income(¥ billions)

Consumption(¥ billions)100025020007526000102772750120301.

Write the consumption function in the given format. Ca = Autonomous consumption expenditure c = MPCY = Disposable Income Calculation:

We can obtain the value of Ca as follows: C = Ca + cY

Put the given values, C = 2577Ca + 0.75YAt Y = 1000 billion, C = 2577(1) + 0.75(1000)

= 8327 billion

At Y = 2000 billion, C = 2577(1) + 0.75(2000)

= 13277 billion

At Y = 3000 billion, C = 2577(1) + 0.75(3000)

= 18277 billion

At Y = 4000 billion, C = 2577(1) + 0.75(4000)

= 23277 billion

At Y = 5000 billion, C = 2577(1) + 0.75(5000)

= 28277 billion

Therefore, the consumption function based on the information in Table 5 is as follows: C = 2577 + 0.75Y.

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Answer:

cutting, bending, dissolving, freezing, and boiling

Explanation:

A physical change is a change in one or more physical properties of matter without any change in chemical properties. In other words, matter doesn't change into a different substance in a physical change. Examples of physical change include but are not limited to, from solid to liquid or from liquid to gas are also physical changes.

Answer:

The answer is burning of wood

Explanation:

just took the quiz

The balanced equation = 3H2 + N2 ---> 2NH3

A.) The type of reaction represented here is a combination reaction which is exothermic

B.) The number of moles are combined in the balanced equation because both the reactant and product are the same in molar number.

The rule for balancing a chemical equations is that the number of moles of the elements in the product side must be the same with the number of moles in the reactant sides.

b.) The law of conservation of mass states that matter is neither created nor destroyed but can change from one form to another.

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Answer:

The answer is "\(\bold{Cl_4}\)"

Explanation:

Please find the complete question in the attachment file.

In this question, it uses the Chemical equations, which is also known as the order to comply with the Law on Mass Conservation, substances must be balanced wherever volume cannot be generated or lost. This should be reacted that the reaction weight becomes equal to a product mass.

The total number of electrons being shared in the single bonds between hydrogen and oxygen atoms in H₂O is 2 pairs or 4 electrons.

In the compound H₂O, which represents a molecule of water, there are two single bonds between the hydrogen (H) and oxygen (O) atoms. Each single bond consists of a pair of electrons being shared between the bonded atoms.

Since there are two single bonds in H₂O, there are a total of two pairs of electrons being shared. Therefore, the total number of electrons being shared in the single bonds between hydrogen and oxygen atoms in H₂O is 2 pairs or 4 electrons.

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Answer:

When I was 12 oofoff susidn

11.2L is the total volume of O\(_2\) produced when 1 mole of PbO decomposes at STP for reaction 2 PbO(s) → 2 Pb(s) + O\(_2\)(g).

Lead(II) oxide, often known as lead monoxide, is an inorganic chemical having the formula PbO. PbO exists in two polymorphs: litharge, which has a tetragonal crystalline structure, as well as massicot, which has an orthorhombic crystalline structure.

The majority of modern PbO uses are already in lead-based commercial glass as well as industrial ceramics, particularly computer components. It is a kind of amphoteric oxide.

2 PbO(s) → 2 Pb(s) + O\(_2\)(g)

mole of PbO =1 mole

the mole ratio between PbO  and oxygen is 2:1

mole of oxygen = 0.5mole

volume of oxygen = mole of oxygen ×22.4L

                              = 0.5×22.4L

                              = 11.2L

Therefore,  11.2L is the total volume of O\(_2\) produced when 1 mole of PbO decomposes at STP.

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Answer:

A.outer-shell electrons of one atom are transferred to the inner electron shells of another atom.

Explanation:

In covalent chemical bond, outer shell share pair of electrons to fill both atoms outer shell. Covalent bond can be polar and non-polar. Hydrogen and carbon bonding is example of non-polar bonds; while hydrogen bonding with chlorine is polar covalent bond example

Answer:

4.0 kg

Explanation:

M = W/g = 39.2/9.8 = 4.0 kg

sorry if its wrong-

The molality of the solution and the molar mass of the unknown compound is mathematically given as

Generally, the equation for the Molarity   is mathematically given as

M=dt/Kt

Therefore

M=2.5/1.86

M=1.34

Therefore

M=wt s/Mol of un*1000/gof solvent

mol of un =5*1000/1.34*25

149.25g/mol

In conclusion,  the molar mass of the unknown compound is

149.25g/mol

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The grams of the mercury, Hg can be produced to from 3.55 moles of  Hg is 712 g.

The reaction is given below as :

2HgO  --->   2Hg + O₂

Given that :

The moles of HgO = 3.55 moles

2 moles of the HgO produces the 2 moles of Hg, Therefore the molar ratio is same : HgO : Hg = 2 : 2.

The number of moles of Hg = 3.55 mol

The number of moles = mass / molar mass

3.55 mol = mass / 200.59 g /mol

Mass = 712 g.

Thus , the mass of the Hg produces is 712 g.

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Answer:

Few Examples of Kinetic Energy

The following are typical examples of kinetic energy:

A wrecking ball used to demolish a building through utilization of the kinetic energy it possesses in motion.

Conversion of liquid water to steam, by virtue of the fast movement of the molecules of the liquid upon agitation

A golf ball after being struck off the tee

An asteroid falling towards Earth at incredible speed

A downhill skier traveling down a hill

The flow of a river

An airplane in motion (possesses a tremendous amount of kinetic energy. This is because the mass of the airplane and the velocity at which it moves are enormous)

Explanation:

Answer:

"The battery in the car has potential energy in the form of chemical energy. As the car is turned on and moves, this potential energy becomes kinetic energy."

Explanation:

Remember to change it up a bit.

Answer:

D

Explanation:

electrons have a negative charge. gaining electrons increases the negative charge.

Answer:

4x10  4,000,000

8x10  80000

Explanation: FOr the problems i couldnt put the 6 and 4 so i just wrote it like that

Environmental groups may have supported cap-and-trade programs for SO2 emissions but not for NOx and heavy metals due to differences in their environmental impacts, technological feasibility, and the effectiveness of alternative regulatory approaches.

Environmental groups may have supported cap-and-trade programs for SO2 emissions due to the significant environmental and health impacts associated with SO2, such as the formation of acid rain and respiratory issues. Cap-and-trade programs provide a market-based approach to reducing emissions by setting a cap on total emissions and allowing companies to trade emission allowances. This approach incentivizes emission reductions and can effectively reduce SO2 levels.

On the other hand, cap-and-trade programs may not be as suitable for NOx and heavy metals due to several reasons. NOx emissions contribute to air pollution and can lead to smog formation and respiratory problems. However, reducing NOx emissions typically requires more complex and diverse control technologies, such as selective catalytic reduction (SCR) systems, which may not lend themselves well to the tradable permit system.

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Answer:

a

Explanation:

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Answer:

1. 5.093 moles

2. 0.33 (rounded) moles

Explanation:

working out in image

Taking into account the reaction stoichiometry:

In first place, the balanced reaction is:

4 Fe + 3 O₂ → 2 Fe₂O₃

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied: If by stoichiometry of the reaction 3 moles of O₂ react with 4 moles of Fe, 3.82 moles of O₂ react with how many moles of Fe?

\(moles of Fe=\frac{3.82 moles of O_{2}x4 moles of Fe }{3 moles of O_{2}}\)

moles of Fe= 5.09 moles

Finally, 5.09 moles of Fe is required to react with 3.82 moles of O₂.

The following rules of three can be applied: If by reaction stoichiometry 319.3 grams of Fe₂O₃ are formed from 3 moles of O₂, 34.7 grams of Fe₂O₃ are formed from how many moles of O₂?

\(moles of O_{2} =\frac{34.7 grams of Fe_{2} O_{3} x3 moles of O_{2}}{319.3 grams of Fe_{2} O_{3}}\)

moles of O₂= 0.326 moles

Finally, 0.326 moles of O₂ are needed to produce 34.7 grams of Fe₂O₃.

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Emerging scientific ideas are new theories or ideas that are gaining attention in the scientific community, but have not yet been fully accepted or confirmed.

Emerging ideas refer to the new and innovative ideas or theories that have yet to gain full scientific acceptance. While a scientific consensus is a view or theory that has been universally accepted and confirmed by multiple experiments or research, an emerging scientific idea is a new and unproven theory or idea that is gaining attention in the scientific community. These emerging ideas may also be referred to as scientific hypotheses. In contrast to scientific consensus, emerging scientific ideas have not yet been subjected to rigorous testing and confirmation.

They are generally proposed to explain new observations or experimental results, which have not yet been fully understood or explained by established scientific theories. Emerging scientific ideas can have the potential to challenge the current scientific consensus. If an emerging scientific idea is found to be valid, it can ultimately lead to the establishment of a new scientific consensus. For example, the emerging scientific idea of the Higgs boson particle led to the discovery of a new field in particle physics, which is now an established scientific consensus.

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Answer:

They can travel at the speed of light.

Explanation:

all electromagnetic waves have the same speed which is equal to the speed of the light.

The fact which all electromagnetic waves have in common is that "They can travel at the speed of light".

Electromagnetic radiation is a type of energy waves that is all around us and takes many forms, such as radio waves, microwaves, X-rays and gamma-rays. Sunlight is also a form of electromagnetic energy, but visible light is only a small portion of the electromagnetic spectrum, which contains a broad range of wavelengths.

In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. In order from highest to lowest wavelength, the series is just opposite.

Electromagnetic radiations don't require any medium to travel and also travel in speed of light. They have Electric field vector and magnetic field vector that is perpendicular to each other and also are perpendicular to the direction of propagation.

Therefore, The fact which all electromagnetic waves have in common is that "They can travel at the speed of light".

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If four molecules of carbon dioxide enter the Calvin cycle (four turns of the cycle), eight G3P molecules are produced and four G3P are exported.

Carbon dioxide molecule (CO₂) enters  the Calvin cycle in the presence of RuBisCO enzyme and interacts with a five-carbon molecule named as ribulose-1,5-biphosphate(RuBP). This interaction creates two molecules of a three-carbon chemical named as 3-phosphoglyceric acid (3-PGA).

These 3-PGA molecules, with the help of ATP and NADPH(G3P) are transformed into a three-carbon sugar named as glyceraldehyde-3-phosphate.

One G3P molecule is utilized to create glucose molecule and the remaining G3P molecules are recycled which regenerates RuBP.

Thus, for every four turns of the Calvin cycle, eight G3P molecules are produced and four G3P molecules are exported.

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Answer:

Explanation:

When a flask is dipped in very hot water in a large beaker , the flask expands due to heat gain . As a result , level of water in tube fitted in flask goes down .

After some time , the water inside tube also become hot so it expands  . coefficient of volume expansion of water is more than coefficient of volume expansion of glass . Hence greater expansion takes place in the volume of water . It is due to this fact that water level in tube starts rising after some time of fall .

The comparison of the potential energy of the cars if they are stopped at points A to point D is C. Potential energy is stored energy, point D is taller so it has more stored energy.

Potential energy is the energy held by an object as a result of its position relative to other objects, internal stresses, electric charge, or other factors. Because any object lifted from its resting position has stored energy, it is referred to as potential energy because it has the potential to do work when released.

Kinetic energy is the energy that an object has as a result of its movement. If we want to accelerate an object, we must apply force to it. Using force requires us to put in effort. After work is completed, energy is transferred to the object, and the object moves at a new constant speed.

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The roller coaster is your favorite ride! but the line is always long! having just studied potential and kinetic energy in physics, you evaluate the energy changes of the cars as they move on the tracks. Compare the potential energy of the cars if they are stopped at points A to point D.

A. Neither have potential energy.

B. The potential energy is the same.

C. Potential energy is greatest at point D.

D. Potential energy is greatest at point A.

To raise the temperature of a 10.35g sample of carbon tetrachloride from 32.1°c to 56.4°c, 222.92J heat is required.

Heat is a form of energy and it is associated with the motion of particles. The amount of heat required to change the temperature of a substance depends on its mass, the specific heat capacity of the substance and the change in temperature.

The mass of carbon tetrachloride is given as 10.35g. The specific heat capacity of carbon tetrachloride is given as 0.85651 J/g°C and the change in temperature is given as 24.3°C. Putting these values into the formula: q = m × C × ΔTq = 10.35 g × 0.85651 J/g°C × 24.3°Cq = 222.92 J. Therefore, 222.92 Joules of heat are required to raise the temperature of a 10.35g sample of carbon tetrachloride from 32.1°c to 56.4°c.

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Answer:

element

Explanation:

A metal is an element that readily forms positive ions (cations) and has metallic bonds. Metals are sometimes described as a lattice of positive ions surrounded by a cloud of delocalized electrons

Answer:

Metal is an element because it consist of type of atom and can't be divided into other substance .

Scale is defined as the measurement of unit ranges, that has been corresponds to the measurements.

The units for the measurement of temperature are given as:

\(\rm 0^\circ C\;=\;273\;K\;=\;32\;F\)

The scale used for the measurement of the freezing is the temperature scale. The temperature is measured in the units of Kelvin, Fahrenheit , and Celsius.

The unit scale for the measurement of freezing of water are

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