Here are the other two options ​

Answer:

Carbon

Explanation:

Because it was very

2  is the van.t Hoff factor (i) ​

KCl⇄   K⁺   +    Cl⁻

1 mol   1           1

i= moles of product/ moles of reactatnt

i=2/1

i= 2

The Van't Hoff factor is used to quantify how a solute affects certain collagative properties of solutions. The coagulative properties, which include a relative drop in vapor pressure, osmotic pressure, a rise in boiling temperature, and a decrease in freezing point, are influenced by the solute concentration in the solution. The Van't Hoff factor calculates the difference between a substance's mass-based concentration and the actual concentration of dissolved particle formation.

The value of I determines the physical concentration of solute particles in a solution. If the solute particles are gathered in a solution, it is found that I is less than 1. We can understand this (ethanoic acid) by using carboxylic acids like acetic

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Answer

pH = 8.8

Explanation

Given:

Concentration [H+] = 1.58x10^-9 M

Required: pH of [H+]

Solution:

pH = -log[H+]

pH = -log[1.58x10^-9]

pH = 8.8

Answer:0.0922 Fahrenheit per minute

Explanation: Temperature change in degree Fahrenheit from Celsius is given by multiplying the change in temperature in celsius by 1.8 and adding 32 to it. Now the temperature you added is in Fahrenheit. But the temperature change is for a day. To convert change in temperature per day to per minute divide the obtained answer in Fahrenheit by 24*60.

Thus,

change in temperature in Fahrenheit: (56*1.8)+32= 132.8 degree Fahrenheit

change in temperature per minute: (132.8)/(24*60)= 0.0922 degree Fahrenheit per minute

Lewis dot structures are diagrams that depict the interactions between atoms in molecules as well as any lone pairs of electrons that may be present.

A Lewis electron dot diagram, also known as an electron dot diagram, Lewis diagram, or Lewis dot structure, is a diagram that employs dots to represent the valence electrons of an atom. The number of dots corresponds to the atom's valence electron count.

By including lines between atoms to represent shared pairs in a chemical bond, Lewis structures expand on the idea of the electron dot diagram.

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The binding energy per nucleon for the ¹⁹F nucleon is equal to 7.786 MeV/nucleon.

Binding energy can be defined as the minimum quantity of energy that is required to remove the particle from the system. Nuclear binding energy can be described as the energy required to dismantle a nucleus of an atom into free neutrons and protons.

The binding energy will be determined from the mass defect. Mass defect is calculated from the difference between the mass observed and the expected combined mass.

Given the mass of the ¹⁹F = 18.9984 a.m.u.

The mass defect for the ¹⁹F can be calculated as:

Δm = \((M _n +M_p) - M_F\)

\(\triangle m =( 9\times 1.0078 + 10 \times 1.0087 )- 18.9984\)

\(\triangle m =0.1588 \;a.m.u.\)

The binding energy for the fluorine can be calculated as:

E = Δmc²

E = 0.1588 × 931.5

E = 147.92 MeV

The binding energy per nucleon of ¹⁹F can be calculated as:

B.E.N. = 147.92/18.9984 = 7.786 MeV per nucleon

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Moles are the ratio of grams to the grams per mole. There are 12 moles of oxygen after dissociation.

Dissociation is the release of the ions, cations, and anions of the molecular compound in the water. The dissociation of the compound is shown as:

Mn₆(ClO₄)₃  ⇆  6 Mn³⁺ + 3ClO⁴⁻

From the dissociation, it can be said that 1 mole of magnesium chlorate dissociates into 12 moles of oxygen atoms.

Given, that the moles of the compound is 1 mole.

Then moles of oxygen atom will be: 1 × 12 = 12 moles

Therefore, 12 moles of oxygen atoms are produced from the dissociation of the compound.

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For Test One, phenotype ratio is Short fur : Long fur = 2 : 0; For Test Two, the phenotype ratio is Short fur : Long fur = 3 : 1; For Test Three, the phenotype ratios will be Short fur : Long fur = 0 : 2

For Test One:

Parent 1: FF (homozygous dominant for short fur)

Parent 2: Ff (heterozygous for short fur)

The Punnett square for this cross will give the following genotype ratios:

FF : Ff = 1 : 1

And the corresponding phenotype ratios will be:

Short fur : Long fur = 2 : 0 or 100% short fur

For Test Two:

Parent 1: Ff (heterozygous for short fur)

Parent 2: Ff (heterozygous for short fur)

The Punnett square for this cross will give the following genotype ratios:

FF : Ff : ff = 1 : 2 : 1

And the corresponding phenotype ratios will be:

Short fur : Long fur = 3 : 1 or 75% short fur and 25% long fur

For Test Three:

Parent 1: ff (homozygous recessive for long fur)

Parent 2: ff (homozygous recessive for long fur)

The Punnett square for this cross will give the following genotype ratios:

ff : ff = 1 : 0

And the corresponding phenotype ratios will be:

Short fur : Long fur = 0 : 2 or 100% long fur

For this investigation, the test variable is the breed of hamster and the outcome variable is the phenotype of the hamster.

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Considering the definition of molar mass, the correct answer is option c): the mass of 1.85 moles H₂O₂ is 62.9 grams.

The molar mass of substance is a property defined as the amount of mass that a substance contains in one mole.

The molar mass of a compound is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

In this case, you know the molar mass of the elements is:

So, the molar mass of the compound H₂O₂ is calculated as:

H₂O₂= 2× 1 g/mole + 2× 16 g/mole

Solving:

H₂O₂= 34 g/mole

You can apply the following rule of three: If by definition of molar mass 1 mole of the compound contains 34 grams, 1.85 moles of the compound contains how much mass?

mass= (1.85 moles× 34 grams)÷ 1 mole

mass= 62.9 grams

Finally, the mass of 1.85 moles H₂O₂ is 62.9 grams.

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Answer:

Work is a force causing the movement or displacement of an object

law of conservation mass:

1. Atoms cannot be created or destroyed in a chemical reaction.

2. Molecules cannot be created or destroyed in a chemical reaction.

3. Compounds cannot be created or destroyed in a chemical reaction.

4. Heat cannot be created or destroyed in a chemical reaction.

Answer:

the possible quantum numbers (ordered n, ℓ, mℓ ) are:Option B.5, 3, -3 and Option C. 4, 3, -2

The quantum numbers n, ℓ, mℓ represent respectively the principal quantum number, the orbital angular momentum quantum number and the magnetic quantum number.

These are the three most important quantum numbers. T

here is another quantum number called the spin quantum number, denoted by ms.

Let's see which of the given quantum number sets is possible.2, 1, 3 is not possible because for ℓ = 1, mℓ can only be -1, 0, or 1. 5, 3, -3 is possible.4, 3, -2 is possible. -4, 3, 1 is not possible.

For any value of ℓ, mℓ must be between -ℓ and +ℓ. e. 2, 1, -2 is not possible because for ℓ = 1, mℓ can only be -1, 0, or 1. f. 3, 2, 2 is not possible because for ℓ = 2, mℓ can only be -2, -1, 0, +1, or +2. g. 3, 3, 1 is not possible because for any value of ℓ, mℓ must be between -ℓ and +ℓ.

Therefore, the possible quantum numbers (ordered n, ℓ, mℓ ) are:5, 3, -34, 3, -2

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Answer:

LDPE would be the best choice for a hand warmer designed to release heat quickly.

Explanation:

Judging from the graph, the LDPE plastic releases heat quicker than the Latex. (and I also did the gizmo-)

Temperature is a property of matter that represents the amount of energy expended in the motion of the constituent particles.

Matter is any substance that has mass and takes up space by having volume.

The potential to work would be defined as energy.

The definition of motion is still the change in the position and orientation of the body over time.

As a result, the highest temperature of latex is approximately 530°C, while the temperature of LDPE plastic becomes 58°C in the graph above. After 60 minutes, the LDPE plastic will emit less energy toward its surroundings than latex. Latex reaches its highest temperature faster than LDPE plastic.

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the formation of ash by burning wood is called a chemical change because ash is a new substance formed by burning wood

Answer:

C. electricity conductive

The orbitals where you can find each of the bonds;

a - sp3

b - sp3

c - sp2

d- sp3

The term hybridization is the term that is used to describe the mixture of atomic orbitals which can be used to combine with other orbitals of relevant energy.

Let us recall that in some cases, the energy that is required in bonding could only be obtained by the hybridization of orbitals in which orbitals are mixed. The mixed orbitals are orbitals that are very close to each other in energy and help in the formation of bond.

Now let us try to write the orbitals where you can find each of the bonds;

a - sp3

b - sp3

c - sp2

d- sp3

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Answer:

Component 1, since it has the greatest mass.

Explanation:

Hello,

In this case, considering that the by-mass percent of a substance is computed:

\(\% m/m_i=\frac{m_i}{m_{mixture}}*100\%\)

In such a way, given the form of the equation one could infer that the higher the mass of the i component, the higher its by-mass percent, it means that the component with the greatest mass will have the highest by-mass percent for the mixture. In such a way, since the component 1 was found to have a mass of 1.12 g, it will have the highest by-mass percent.

Best regards.

Based on the law of conservation of mass, when 216 grams of N₂O5 completely decomposes, 184 grams of NO₂ will be produced and 32 grams of O₂.

The mass of the products that will be obtained is calculated as follows:

The number of moles of N₂O5 in 216 grams:

216 g N₂O5 x (1 mol N₂O5/108 g N₂O5) = 2 moles N₂O5

From the balanced equation, 2 moles of N₂O5 will produce 4 moles of NO₂.

Therefore, the mass of NO₂ produced is as follows:

4 moles NO₂ x 46 g NO₂/1 mol NO₂ = 184 g NO₂

Based on the law of conservation of mass, when 216 grams of N₂O5 decomposes, 184 grams of NO₂ will be produced, and the remaining mass will be oxygen:

216 g N₂O5 - 184 g NO₂ = 32 g O₂

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Answer:

Answer. Mass of object is 8.16 kg (or 8 kg if g = 10 m/s²)

Explanation:

One way to calculate mass: Mass = volume × density. Weight is the measure of the gravitational force acting on a mass. The SI unit of mass is "kilogram". The SI unit of weight is Newton (N).

Answer: Frequency

Explanation: Without a doubt my answer is Frequency, none of the other options have nothing to do with sound waves so Frequency is my best bet.

The law involved is Charles law and the volume the gas will occupy at 30°C is 599.46mL. Details about Charles law can be found below.

Charles law gives the relationship between the volume of a gas and its temperature. The volume of a gas can be calculated using the following equation:

V1/T1 = V2/T2

Where;

550/278 = V2/303

303 × 550 = 278V2

166,650 = 278V2

V2 = 599.46mL

Therefore, the law involved is Charles law and the volume the gas will occupy at 30°C is 599.46mL.

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Answer:

This bubbled-up magma is cooled by frigid seawater to form igneous rock. This rock (basalt) becomes a new part of Earth's crust. Seafloor spreading occurs along mid-ocean ridges—large mountain ranges rising from the ocean floor.

Explanation:

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The lower the first ionization energy, the higher the reactivity of the metal.

The metallic character increases as energy from ionization lower. The reactivity of a metal is not balanced with the energy of its first ionization. The higher the first energy of ionization, the higher the metal's reactivity. The lower the first energy of ionization, the higher the metal's reactivity.

Metallic character is inversely proportional to the ionization energy. The reduced ionization energy is the metallic character of the element.

So we can conclude that  Part of metallic character is the ease with which electrons are contrasted from an atom. Ionization Energy calculates the energy required to remove an electron.

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When a cylinder is filled to a volume of 3.50 L at 760 mmHg with chlorine gas. The volume of the gas if the pressure is changed to 50.0 kPa is 7.0924 L.

Boyle's law is generally a gas law which states that "a gas's pressure and volume are inversely proportional when the temperature is kept constant, as volume increases, pressure falls and vice versa".

Mathematically,

P₁V₁ = P₂V₂

P₁ = 760 mmHg = 101.32 kPa

V₁ = 3.50 L

P₂ = 50 kPa

V₂ = ?

Substituting the values we get,

101.32 × 3.50 = 50 × V₂

⇒ V₂ = (101.32 × 3.50)/50

⇒ V₂ = 7.0924 L

Hence, the volume of the gas if the pressure is changed to 50.0 kPa is 7.0924 L.

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The measure of the length of events and the duration of intervals between events is time.

The duration of events or the gaps between them can be measured, compared, or even ordered using time. The lengthy period of time that the Earth's geologic history takes up is known as geologic time. Starting at the beginning of the Archean Eon  formal geologic time runs until the present. Geology is defined as the "Science of the Earth."

Geology is the fundamental Earth science that examines how the earth created, its structure and composition, and the various forces acting on it. It is sometimes known as geoscience or earth science.

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The lack of a spinal column is the  distinguishing characteristic of invertebrates.

These are organisms which lack a backbone(vertebral column) while vertebrates on the other hand have it.

This is why option C was chosen as the most appropriate choice in this scenario.

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Balance the following chemical equations:

1. N2 + 3 H2 → 2 NH3

Ex: Synthesis reaction

2. 2 KClO3 → 2 KCl + 3 O2

Single Replacement reaction

3. 2 NaF + ZnCl2 → ZnF2 + 2 NaCl

Decomposition reaction

4. 2 AlBr3 + 3 Ca(OH)2 → Al2(OH)6 + 6 CaBr2

Double Replacement reaction

5. 2 H2 + O2 → 2 H2O

Combustion reaction

6. 2 AgNO3 + MgCl2 → 2 AgCl + Mg(NO3)2

Synthesis reaction

7. 2 Al + 6 HCl → 2 AlCl3 + 3 H2

Decomposition reaction

8. C3H8 + 5 O2 → 3 CO2 + 4 H2O

Combustion reaction

9. 2 FeCl3 + 6 NaOH → Fe2O3 + 6 NaCl + 3 H2O

Double Replacement reaction

10. 4 P + 5 O2 → 2 P2O5

Synthesis reaction

11. 2 Na + 2 H2O → 2 NaOH + H2

Single Replacement reaction

12. 2 Ag2O → 4 Ag + O2

Decomposition reaction

13. C6H12O6 + 6 O2 → 6 CO2 + 6 H2O

Combustion reaction

14. 2 KBr + MgCl2 → 2 KCl + MgBr2

Double Replacement reaction

15. 2 HNO3 + Ba(OH)2 → Ba(NO3)2 + 2 H2O

Double Replacement reaction

16. C5H12 + 8 O2 → 5 CO2 + 6 H2O

Combustion reaction

17. 4 Al + 3 O2 → 2 Al2O3

Synthesis reaction

18. Fe2O3 + 2 Al → 2 Fe + Al2O3

Single Replacement reaction

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Answer:

ok, here is your answer

Explanation:

AI-generated answer

To find the mass of oxygen that reacted, we need to use the Law of Conservation of Mass, which states that in a chemical reaction, the mass of the reactants equals the mass of the products.

First, we need to find the number of moles of hydrogen that reacted:

Molar mass of hydrogen (H₂) = 2.016 g/mol

Number of moles of H₂ = mass/molar mass = 46.2 g/2.016 g/mol = 22.92 mol

Next, we need to use the balanced chemical equation to find the number of moles of water produced:

hydrogen + oxygen → water

2H₂ + O₂ → 2H₂O

From the equation, we can see that for every 2 moles of H₂, 1 mole of O₂ is required to produce 2 moles of H₂O. Therefore, the number of moles of O₂ required to produce 22.92 moles of H₂O is:

Number of moles of O₂ = 1/2 x 22.92 mol = 11.46 mol

Finally, we can find the mass of oxygen that reacted by using its molar mass:

Molar mass of oxygen (O₂) = 32.00 g/mol

Mass of oxygen = number of moles x molar mass = 11.46 mol x 32.00 g/mol = 366.72 g

Therefore, the mass of oxygen that reacted is 366.72 g.