What is the material being extruded by Mount Mayon? Where do you think did this material come from?

The following species can be listed in order of decreasing boiling point:

CO₂>O₃>N₂>O₂>H₂

The boiling point of gases depends upon the strength of the intermolecular forces of attraction acting between them and the molecular weight of the gaseous species.

CO₂ has polar bonds and also exhibits dipole - dipole interactions.

O₃ also has polar covalent bonds

O₂, N₂ and H₂ are non polar but have london dispersion forces as weak intermolecular forces.

Thus, the order of decreasing boiling point will be -

CO₂>O₃>N₂>O₂>H₂

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Gold is found in various ionic compounds, but one of the most well-known and commercially significant compounds is gold chloride, also known as auric chloride or gold(III) chloride.

The chemical formula for gold chloride is AuCl₃. Gold chloride is an ionic compound composed of gold cations (Au³⁺) and chloride anions (Cl-). It is a yellow-orange solid that is highly soluble in water. Gold chloride can be formed by reacting the gold metal with chlorine gas or by dissolving the gold metal in aqua regia, which is a mixture of concentrated nitric acid and hydrochloric acid.

Gold chloride has several uses and applications. It is commonly used in the field of nanotechnology for the synthesis of gold nanoparticles. These nanoparticles have unique optical, electronic, and catalytic properties, making them valuable in various fields such as medicine, electronics, and materials science.

In addition to gold chloride, gold can also form other ionic compounds with different anions, such as gold bromide (AuBr), gold iodide (AuI), gold sulfide (Au2S), and gold cyanide (AuCN). These compounds have their own unique properties and applications.

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The decomposition of hydrogen peroxide into water and oxygen is an exothermic reaction, and its value can be calculated using the enthalpy change. The enthalpy change is the amount of energy released or absorbed during a chemical reaction. In this reaction, the enthalpy change is -196 kJ, which means that the reaction releases 196 kJ of

energy when 2 moles of hydrogen peroxide are decomposed into water and oxygen at constant pressure.

Now, we need to calculate the value of q in kJ when 2.00 g of hydrogen peroxide is decomposed at constant pressure. The molar mass of hydrogen peroxide (H2O2) is 34.0147 g/mol. So, the number of moles of hydrogen peroxide can be

calculated as follows:

Number of moles of H2O2 = mass of H2O2 / molar mass of H2O2
Number of moles of H2O2 = 2.00 g / 34.0147 g/mol
Number of moles of H2O2 = 0.05878 mol

As per the balanced chemical equation, 2 moles of hydrogen peroxide are required to produce 2 moles of water and 1 mole of oxygen. So, the number of moles of water and oxygen produced can be calculated as follows:

Number of moles of H2O = 2 x 0.05878 mol = 0.11756 mol
Number of moles of O2 = 1 x 0.05878 mol = 0.05878 mol

The enthalpy change is -196 kJ per 2 moles of hydrogen peroxide. So, the enthalpy change per 1 mole of hydrogen peroxide can be calculated as follows:

Enthalpy change per 1 mole of H2O2 = -196 kJ / 2 mol
Enthalpy change per 1 mole of H2O2 = -98 kJ/mol

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Answer:

C.) 1700 Pa

Explanation:

300 k - 0.3 m^3 = 17000

Answer:

1.what is going to happen to the climate in the future?

2.why can climate affect people's health?

3.how does the changing climate affect all human beings?

Explanation:

1. if we are not thinking about the climate or incase the global warming increases it can cause flood in coastal areas and the ice Berks in the polar regions may melt and cause the sea level to increase.

2.if the climate becomes worse it can kill many people some people can get respiratory diseases . as most fuels we use produces harmful products it's can cause pollution and can kill many people

3.if the climate changes some animals can't adapt to the climate and they can even get extinct and as the climate change may result in many natural disasters it can also kill people

that's why it is very important to take care of the environment and climate

hope you understood

The pressure of \(N_{2}\) will rise under the given conditions. And, Yes, it is possible to reverse this tendency by adding \(H_{2}\). The minimum pressure of H2 required to reverse the tendency is 0.01 atm.

The reaction involved is: \(N_{2}\)(g) + 3\(H_{2}\)(g) ⇌ 2\(NH_{3}\)(g)  Hence, when \(H_{2}\) is added to the above system, the \(N_{2}\) and  \(H_{2}\)  will react to produce \(NH_{3}\). This reaction will reduce the amount of \(N_{2}\) present in the system, causing the pressure of \(N_{2}\) to decrease. Therefore, by adding \(H_{2}\)  , we can change the tendency of \(N_{2}\) pressure from rise to fall.To calculate the minimum pressure of  \(H_{2}\)  required to reverse the tendency, we have to use the equilibrium constant, Kp. The expression for Kp for the above reaction is: Kp =( \(NH_{3}\)) / p(\(N_{2}\)) p3( \(H_{2}\) )

At equilibrium, Kp = 1.7 × 104 at 1126 °C.Now, we will solve for the minimum pressure of \(H_{2}\)   needed to reverse the tendency. Let's assume that the pressure of \(N_{2}\) has increased by x atm. Therefore, the new pressure of \(N_{2}\) will be (0.0406 + x) atm. At equilibrium, we have:

p2(\(NH_{3}\) ) / p(\(N_{2}\)) p3( \(H_{2}\) ) = 1.7 × 104

On substituting the given values and simplifying, we get:

p2(\(NH_{3}\)) / p(N2) = 6.39 × 10-5

Now, p2(\(NH_{3}\)) = 5.97 atm, and p(\(N_{2}\)) = (0.0406 + x) atm.

On substituting these values, we get:5.97 / (0.0406 + x) = 6.39 × 10-5

Solving for x, we get:x = 0.00579 atm ≈ 0.01 atm (rounded to 2 significant digits)Therefore, the minimum pressure of \(H_{2}\)   required to reverse the tendency is 0.01 atm.

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The change illustrated in the diagram is atoms that formed molecules; option C.

Matter is anything that has mass and occupies space.

Matter can exist as pure or impure substances.

Pure substances are the elements and compounds.

Impure substances are the mixtures.

All forms of matter are composed of atoms.

When atoms of substances combine, the form molecules of the same element or molecules of a compound.

Atoms can also form ions by the loss or gain of electrons.

Therefore, the illustrated diagram shows atoms of the same substance combining to form molecules.

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Answer:

...

Explanation:

Answer:

there are 37 atoms

Explanation:

The formula for nickel(II) acetate tetrahydrate is Ni(C2H3O2)4. To calculate the number of atoms in the formula, we need to count the number of atoms of each element and then multiply each by the number of times it appears in the formula.

Ni: There is 1 Ni atom in the formula.

C: There are 8 C atoms (4 from each C2H3O2) in the formula.

H: There are 12 H atoms (3 from each C2H3O2) in the formula.

O: There are 16 O atoms (4 from each C2H3O2) in the formula.

Therefore, the total number of atoms in the formula is 1 + 8 + 12 + 16 = 37.

So there are 37 atoms in Ni(C2H3O2)4.

Answer:

0.845 g C

Explanation:

To find the mass of carbon (C) consumed, you need to (1) convert grams Na₂SO₄ to moles Na₂SO₄ (via molar mass from periodic table), then (2) convert moles Na₂SO₄ to moles C (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles C to grams C (via molar mass from periodic table).

It is important to arrange the ratios/conversions in a way that allows for the cancellation of units. This can be done by making sure the desired unit is the numerator. The final answer should have 3 sig figs because the given value (5.00 grams) has 3 sig figs.

Molar Mass (Na₂SO₄): 2(22.99 g/mol) + 32.07 g/mol + 4(16.00 g/mol)

Molar Mass (Na₂SO₄): 142.05 g/mol

1 Na₂SO₄ + 2 C ---> Na₂S + 2 CO₂

Molar Mass (C): 12.01 g/mol

5.00 g Na₂SO₄           1 mole Na₂SO₄            2 moles C              12.01 g
-----------------------  x  --------------------------  x  -----------------------  x  --------------- =
                                       142.05 g                1 mole Na₂SO₄        1 mole C

= 0.845 g C
                                   

Increasing the concentration of A by a factor of 3 will cause the reaction rate to increase by a factor of 27 (option d).

The given information states that the reaction is third order in A. This means that the rate of the reaction is directly proportional to the concentration of A raised to the power of 3. When the concentration of A is increased by a factor of 3, the new concentration will be 3 times the original concentration.

Since the reaction rate is proportional to the concentration of A raised to the power of 3, increasing the concentration by a factor of \(3^{3}\) (which is 27) will result in the reaction rate increasing by a factor of 27. Therefore, the correct answer is option D) increase by a factor of 27.

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There are four. Fe, H, C, and O

Electrolysis is a chemical process that uses an electric current to drive a non-spontaneous chemical reaction. It involves the use of an electrolytic cell, which consists of two electrodes (an anode and a cathode) immersed in an electrolyte solution. The electrolyte is typically a liquid or a molten compound that can conduct electricity.

During electrolysis, when an electric current is applied, positive ions migrate towards the cathode (negative electrode) while negative ions migrate towards the anode (positive electrode). This movement of ions is driven by the attraction and repulsion of the opposite charges.

At the cathode, reduction reactions occur. Positively charged ions gain electrons from the cathode and are reduced, forming neutral atoms or molecules. This electrode is where the desired product is often obtained.

At the anode, oxidation reactions take place. Negatively charged ions lose electrons to the anode and are oxidized, forming neutral atoms or molecules. This electrode is typically where any byproducts or waste products are formed.

The overall process of electrolysis involves the conversion of electrical energy into chemical energy. The electric current provides the energy necessary to drive the non-spontaneous reactions and facilitate the separation of compounds into their constituent elements or ions.

Electrolysis has various practical applications, such as electroplating, metal refining, production of chemical compounds, and water splitting to generate hydrogen and oxygen gases. It plays a crucial role in industries, laboratories, and even in everyday life, where it enables processes like electrochemical machining and rechargeable batteries.

In summary, electrolysis is a process that uses an electric current to drive chemical reactions by the migration of ions towards the electrodes. It allows for the separation of compounds into their components and the production of desired products through reduction and oxidation reactions.\(\huge{\mathcal{\colorbox{black}{\textcolor{lime}{\textsf{I hope this helps !}}}}}\)

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Answer:

i have no clue good luck

Explanation:

The weight of the book in kilograms is 0.498Kg.

A body's bulk is an innate characteristic. It was widely believed to be related to the volume of matter in a physical body prior to the discovery of the atom and particle physics.

You can work on a level surface provided by the book.

will eventually add more weights. It is distinctive in its own way. The mass must be measured.

the account balance to 0 the scale with the book on it. Weigh the object down to the nearest gram (1 g). 498g In this experiment, all masses will be measured in kilograms. the books weigh 0.498 kg in kilograms.

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Answer:

Genes are segments of DNA that contain the code for a paticular  protein that works in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

Explanation:

Answer:

The answer should be A

Explanation:

All atoms of an element have the same number of protons in their nucleus, which is known as the atomic number.

Additionally, they have the same chemical properties and react in similar ways due to their identical electron configurations. Each element also has a unique symbol and name assigned to it, allowing it to be easily distinguished from other elements.

The physical and chemical properties of an element can be predicted based on its position in the periodic table, which is organized by increasing atomic number. All isotopes of an element also have the same number of protons, but may vary in the number of neutrons and thus have different atomic masses. Overall, these characteristics apply to all atoms of an element in a consistent and predictable manner.

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The dipole for PBr3 is shown in the attachment. PBr3 has non xero dipole moment because bromine atoms can not cancel out dipole moment of each other.

The three bromine atoms in this molecule do not cancel out the dipole moment of each other and molecule shows net dipole moment.it shows that PBr3 is a polar molecule.the partially positive charge surrounded by phosphorus atom and partially negative charged surrounded by bromine atom.

Dipole moment is used to define the symmetry of molecules. PBr3 has the trigonal pyramidal structure. bromine atom has more electronegative value than phosphorus.

Thus, the dipole moment in PBr3 is non zero due to unequal charge distribution.

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The absorbance of the  214 mm solution of nickel(ii) chloride can be obtained by fitting it into the regression line of the calibration curve.

During measurements of the concentration of a solution using a spectrophotometer, it is conventional to first calibrate the instrument. The calibration is done by measuring the absorbance of various concentrations of the test solution after measuring the absorbance of the sample blank.

After the instrument has been calibrated, the absorbance of any test solution can now be obtained by fitting it into the regression line of the calibration curve.

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The - pH is 2.6 .You must know the hydronium ion concentration in moles per liter in order to calculate the pH of an aqueous solution (molarity).

The pH of Acids and Bases

For an acidic solution, [H3O+] > [OH-]

[H3O+] = [OH-] is the formula for a neutral solution.

For the fundamental answer: [H3O+] [OH-]

You must know the hydronium ion concentration in moles per liter in order to calculate the pH of an aqueous solution (molarity).

The formula pH = - log [H3O+] is then used to determine the pH.

You must know the hydronium ion concentration in moles per liter in order to calculate the pH of an aqueous solution (molarity). The formula pH = - log [H3O+] is then used to determine the pH.

ie, 0.075 - 0.34 = - 0.265.

-pH = 2.6.

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Answer:

Radio waves were first developed in WWII

Explanation:

Mark me Brainliest?

Answer:

plz I. need a brainliest

Explanation:

I hope you have a good day

Answer:

A dunes windward side is the side where the wind is blowing and pushing material up. A dunes slip face is simply the side without wind. A slipface is usually smoother than a dunes windward side. A collection of dunes is called a dune belt or dune field.

Explanation:

Hope this helps...

Answer:

C. an element

Explanation:

Elements are pure substances and made up of only one type of atoms which cannot be further broken down.

For the given molecules, toluene and isobutene would have greater solubility in hexane and sucrose and glycol would have greater solubility in water.

Solubility refers to the maximum amount of a substance that can be dissolved in a given amount of solvent at a specified temperature. Solubility is a characteristic property of a specific solute–solvent combination, and different substances have greatly differed solubilities. In other words, it is the ability of a substance - the solute, to combine and form a solution with another substance - the solvent. Polar solutes such as sucrose and glycol are more soluble in polar solvents (i.e., water), and nonpolar solutes such as toluene and isobutene are more soluble in nonpolar solvents (i.e., hexane).

Note: The question is incomplete as it is missing options which are A) toluene B) sucrose C) glycol D) isobutene.

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The four steps to explain how an electric motor works are as follows:

1. The wire loop is placed between the poles of a permanent magnet, and it is attached to a commutator. Current flows through the wire, creating an electromagnet.

2. The direction of the current is switched, causing the poles of the electromagnet to switch as well. This reversal of the magnetic field allows for continuous rotation.

3. Electromagnetic forces occur as the electromagnet interacts with the permanent magnet. These forces cause the electromagnet to start rotating.

4. The rotation of the electromagnet continues, leading to a change in the direction of the current as the wire turns. This continuous change in current direction sustains the rotation of the electromagnet.

In summary, an electric motor works by utilizing a loop of wire placed between the poles of a permanent magnet, which is attached to a commutator. When current flows through the wire, it creates an electromagnet. By switching the direction of the current, the poles of the electromagnet also switch, causing a reversal of the magnetic field. This interaction between the electromagnet and the permanent magnet results in electromagnetic forces that lead to the rotation of the electromagnet. The continuous rotation is sustained by the ongoing change in the direction of the current as the wire turns.

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Answer:

Students will know that scientists find answers to questions about the natural world in different ways. ... Students will be able to explain that some science investigations are not experiments because they DON'T involve testing a hypothesis by changing one variable while keeping the other factors constant.

Explanation:

It  really all depends on the levels of suspicion.