1. What type of reaction occurs when an acid reacts with a base?

Answer:

2.59g

Explanation:

Using Avagadro's law equation as follows:

V1/n1 = V2/n2

Where;

V1 = initial volume (litres)

V2 = final volume (litres)

n1 = first amount of gas in grams

n2 = second amount of gas in grams

According to the information provided in this question, v1 = 93.2L, v2 = 10.4L, n1 = 23.2 g, n2 = ?

Using V1/n1 = V2/n2

93.2/23.2 = 10.4/n2

Cross multiply

93.2 × n2 = 23.2 × 10.4

93.2n2 = 241.28

n2 = 241.28/93.2

n2 = 2.588

n2 = 2.59g

The mass of the gas is 2.59g that occupies a volume of 10.4 L under the same conditions.

V₁/n₁ = V₂/n₂

Where

V₁ = initial volume (litres)

V₂ = final volume (litres)

n₁ = first amount of gas in grams

n₂ = second amount of gas in grams

Given:

V₁ = 93.2L,

V₂ = 10.4L,

n₁ = 23.2 g,

To find:

n₂ = ?

On substituting the values:

93.2/23.2 = 10.4/n₂

93.2 * n₂ = 23.2 * 10.4

93.2* n₂ = 241.28

n₂ = 241.28/93.2

n₂ = 2.588

n₂ = 2.59g

Thus, the mass of the gas is 2.59g.

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25.0 ml of a 0.188 m h2so4 solution must be neutralized with 46.3 ML (in ml) of a 0.203 m sodium hydroxide solution. In the process of making chlorine, sodium hydroxide is created as a byproduct.

It is crystalline, colourless, and solid in its purest form. These sodium cations and hydroxide anions make up this extremely water-soluble molecule known as sodium hydroxide. Chemical element chlorine has the symbol Cl and atomic number 17. It is the second-lightest halogen, and although it is between fluorine and bromine on the periodic table, most of its properties fall somewhere in the middle. Is called chlorine.

H2SO4 millimoles equal 0.188*25.0 = 4.70mmol NAOH millimoles equal 4.70*(2/1) = 9.40mmol in a volume of 0.203M NAOH equals 9.40*(1/0.203) = 46.3 ML.

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Answer:

Explanation:

The picture shows two similar structures bonded together so it can not be an atom or molecular compound .

It is a molecule . Each structure ( lobe ) represents atom of oxygen . Molecule of oxygen contains two atoms bonded together .

Molecule of oxygen = O₂ .

A double displacement reaction is a type of reaction in which two reactants exchange ions to form two new compounds. Many double displacement reactions occur between ionic compounds that are dissolved in water. A double replacement reaction is represented by the general equation.

Answer:

A chain reaction refers to a process in which neutrons released in fission produce an additional fission in at least one further nucleus.

Answer:

200 kPa

(it is actually 199.999, but rounding up it is 200)

hope this helps!

Answer:

1500 Torr is  about 200 kPa

CH3COOH

Explanation:

hope I helped

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The predicted formula for the ionic compound formed by the atoms X and Y is X₃Y₂.

Atom X and Atom Y belong to Group 13 and Group 15 of the periodic table, respectively. They will form an ionic compound because they have different electron configurations. As a result, atom Y must gain three electrons to become stable, while atom X must lose two electrons to become stable.

This indicates that atom X will form an ion with a +2 charge, while atom Y will form an ion with a -3 charge. They will combine in a 3:2 ratio to form an ionic compound. The predicted formula for the ionic compound formed between the two elements is X₃Y₂. The number of atoms present in the compound is represented by the subscripts 3 and 2.

Therefore, the predicted formula for the ionic compound formed by the atoms X and Y is X₃Y₂.

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Molality of a solution is defined as the number of moles of solute per kilogram of solvent. The formula for molality is given by the following equation:molality (m) = moles of solute / mass of solvent (in kg)In order to calculate the molality of a 12 percent urea solution, we need to first determine the mass of urea present in the solution.

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The electrode can be used in conjunction with a dissolved oxygen meter to monitor oxygen levels in real-time and to control the oxygen supply to the culture medium to optimize growth conditions.

The redox potential indicator that detects the presence or absence of oxygen in the culture medium is called

"oxygen-sensitive electrode.

A redox potential indicator that detects the presence or absence of oxygen in the culture medium is known as an oxygen-sensitive electrode. It measures the partial pressure of oxygen (pO2) in a sample by transforming it into an electrical signal. It is made up of a platinum cathode and a silver anode, and it can be used in both aqueous and non-aqueous solutions.An oxygen-sensitive electrode is useful in a variety of applications, including fermentation processes and cell culture, where the presence or absence of oxygen affects the metabolic activity of the organisms in question. The electrode can be used in conjunction with a dissolved oxygen meter to monitor oxygen levels in real-time and to control the oxygen supply to the culture medium to optimize growth conditions.

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Chromatography is a widely used analytical technique that separates and identifies the various components of a mixture. The two essential components of any chromatography experiment are the stationary phase and the mobile phase.

The stationary phase refers to the material that is fixed in place and does not move during the experiment. This phase is often a solid or a liquid that is coated onto a solid support such as a column or a plate. The mobile phase, on the other hand, is the liquid or gas that moves through the stationary phase and carries the sample to be analyzed. The mobile phase is usually a solvent that has a different polarity than the stationary phase, allowing the components of the mixture to be separated based on their affinity to the stationary phase. In summary, the two essential components of any chromatography experiment are the stationary phase and the mobile phase, and these components play a crucial role in separating the various components of a mixture and identifying them.

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The formal name of the resulting molecule is a triacylglycerol, also known as a triglyceride. This molecule is formed when three molecules of fatty acids and one molecule of glycerol join together through a process called esterification.

A triacylglycerol, also known as a triglyceride, is a type of dietary fat molecule composed of three molecules of fatty acid joined to one molecule of glycerol. This molecule is formed through a process called esterification, which involves the reaction of a fatty acid with an alcohol, such as glycerol, to form an ester bond. This bond is what holds the molecules of fatty acid and glycerol together to form the triacylglycerol molecule. Triacylglycerols are an important source of energy for the body, and are a major component of many foods, such as oils, butter, and margarine. In addition, triacylglycerols are used in the body to store energy, and are used as a building block for other types of molecules, such as lipoprotein and cholesterol.

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According to stoichiometry and given chemical equation , 3.5  moles zinc nitrate are obtained from 7 .0 moles of silver nitrate.

It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.

In the given example as 2 moles of silver nitrate give 1 mole of zinc nitrate

∴7 moles of silver nitrate will give 7×1/2=3.5 moles of zinc nitrate.

Thus,  3.5  moles zinc nitrate are obtained from 7 .0 moles of silver nitrate.

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Halogen-fluorine,chlorine,bromine,iodine

Group II A- Beryllium,magnesium,calcium,strontium ,barium ,radium

Non-reactive- Helium,neon,argon,krypton,xenon,radon

Alkali metal-lithium ,sodium,potassium,rubidium,caesium,francium.

It is a representation of chemical elements in a tabular format.It is a graphical representation of modern periodic law which states that the properties of elements are a periodic function of their atomic numbers.

The periodic table is divided into 4 blocks, rows of the table are called periods and columns are known as groups. Elements belonging to the same group show same properties.

First periodic table  developed and accepted was by Russian chemist Dmitri Mendeleev in 1869.He formulated the periodic law as properties of the elements are a periodic function of their atomic masses.

Till date 118 elements have been discovered and all have been successfully placed in the periodic table based on their properties.

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Answer:

Use the periodic table to choose the element that matches each description.halogen: 

✔ iodine✔ magnesium

✔ argon ✔ potassium

Answer:

Explanation:

-

Hello there, I hope you are having a great day Your Question: Which is not an advantage of sexual reproduction? Would be A Diverse Offspring because some could be got to the mother or father carry are mixed together in the offspring.

In talc preparation, it is used during the filtration process and also acts as a distribution agent. When it is added to the dill water, it combines with all other compounds present in the substance and leaves the water alone. In this way, it acts as a filtering agent.

To create a balance sheet for the year prior on Part C using column E, list the assets and liabilities in column E, calculate the total assets and total liabilities, and then subtract the total liabilities from the total assets to find the owner's equity. To create a balance sheet for the year prior on Part C using column E, follow these steps:

1. Start by listing all the assets in column E. Assets are items of value owned by the company. Examples of assets include cash, accounts receivable, inventory, and property. Enter the values of each asset in column E.
2. Next, list all the liabilities in column E. Liabilities are the debts and obligations of the company. Examples of liabilities include accounts payable, loans, and taxes payable. Enter the values of each liability in column E.
3. Calculate the total assets by adding up the values in column E for all the assets.
4. Calculate the total liabilities by adding up the values in column E for all the liabilities.
5. Subtract the total liabilities from the total assets to find the owner's equity. Owner's equity represents the owner's investment in the company and is calculated as the difference between assets and liabilities.
6. Finally, list the owner's equity in column E.

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Answer:

Substances 1 and 2

Explanation:

an element only has 1 kind of atoms :3

The dominant mechanism for the removal of carbon dioxide from the atmosphere is the process of photosynthesis in plants. During this process, carbon dioxide is absorbed by plants and converted into organic matter, which is then used for plant growth and development. This mechanism is important because it not only removes carbon dioxide from the atmosphere but also produces oxygen, which is essential for the survival of many living organisms.

Although photosynthesis is the primary mechanism for the removal of carbon dioxide from the atmosphere, other processes also play a role. One such process is the dissolution of carbon dioxide in seawater, which can result in the formation of carbonate ions. These carbonate ions can then react with calcium ions in seawater to form calcium carbonate, which can eventually settle on the seafloor and form carbonate-rich rocks.

Subduction, on the other hand, is a process by which one tectonic plate is forced beneath another. This process does not directly remove carbon dioxide from the atmosphere, but it can contribute to the removal of carbon dioxide over long periods of time. When tectonic plates are forced beneath one another, they can carry carbon-rich sediments with them, which can then be subjected to high temperatures and pressures, causing them to release carbon dioxide into the atmosphere.

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Answer:

Scientists learn about the properties of some particles from the collisions that occur inside a particle accelerator.

Explanation:

Answer:

Increases by 10% to £18.15 work out original cost

Answer:

P2 = 2.25 atm

Explanation:

Given:

V1 = 1.5 L. V2 = 2.0 L

P1 = 3.0 atm. P2 = ?

Use Boyle's law and solve for P2:

P1V1 = P2V2

or

P2 = (V1/V2)P1

= (1.5 L/2.0L)(3.0 atm)

= 2.25 atm

Answer:

c. carry materials to all parts of the body

Explanation:

The lungs and tissues receive oxygen and nourishment via blood.

Answer:

Suppose a piece of iron with a mass of 21.5 g at a temp of 100.0 °C is dropped into an insulated container of water. The mass of the water is 132.0 g and its temperature before adding the iron is 20.0 °C. What will be the final temp of the system? Specific heat of iron is 0.449 kJ/kg K.

Solution:

1) Since

qlost, metal = qgained, water

we write

(mass) (Δt) (Cp, metal) = (mass) (Δt) (Cp, water)

2) Substituting:

(21.5) (100 − x) (0.449) = (132.0) (x − 20) (4.184)

Some explanation:

a) 100 − x is the Δt for the metal; it starts at 100.0 °C and drops to some unknown, final value.

b) x − 20 is the Δt for the water; it starts at 20.0 °C and rises to some unknown, final value.

c) Since both metal and water wind up at the same ending value, we need to use only one unknown for the two Δt expressions.

3) A wee bit of algebra:

(2150 − 21.5x) (0.449) = (132x − 2640) (4.184)

965.35 − 9.6535x = 552.288x − 11045.76

561.9415x = 12011.11

To 3 sig figs, the answer is 21.4 °C.

Explanation:

hope its correct!

The mass of oxygen gas produced, given that 15.8 g of potassium permanganate is heated until no more oxygen gas is given off is 1.6 g

From the question given, the following data were obtained:

The mass of oxygen gas produced from the reaction can be obtained as follow:

Mass of potassium permanganate = Mass of remaining substance + mass of oxygen

Inputting the given parameters, we have:

15.8 = 14.2 + mass of oxygen

Collect like terms,

Mass of oxygen = 15.8 - 14.2

= 1.6 g

Thus, we can conclude that the mass of oxygen gas produced from the reaction is 1.6 g

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Answer: h = 1/3VA

Explanation:

V = 1/3Ah

3AhV = 1

h = 1/3VA

The mass of the hydrogen is obtained as 0.302 g.

A hydrocarbon is a compound that contains only carbon an hydrogen. The amount of the carbon and the hydrogen can be found by combustion.

The mass of hydrogen can be obtained as follows;

Number of moles of hydrogen =2.7 g/18 g/mol * 2 = 0.302 moles

Now the mass of hydrogen is obtained from;

0.302 moles * 1 g/mol = 0.302 g

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Answer with Explanation:

You can determine if the object will float or sink by finding out its "density." You can get the density of the solid object by dividing its "mass" by its "volume." If its density is less than the density of the liquid, then it will "float." However, if its density is more than the density of the liquid, then it will "sink."

This means that it is also important to know the liquid's density because you will be comparing it to the density of the solid object. For example, the density of water is 1 g/\(m^{3}\). No matter the volume of the substance, the density is always the same.

The main product of the acid-catalyzed dehydration of cis-1,2-dimethylcyclohexanol is 1,2-dimethylcyclohexene.

In this reaction, the acid catalyst (typically sulfuric acid, H2SO4) protonates the hydroxyl group of the alcohol, making it a better leaving group. The protonated alcohol molecule then loses a water molecule to form a carbocation intermediate.

Since the cis-1,2-dimethylcyclohexanol is a secondary alcohol, the carbocation intermediate will form on the more stable carbon, which is the one that is bonded to the greater number of alkyl groups. In this case, the more stable carbocation is formed on the carbon atom that is bonded to the two methyl groups.

The next step involves the removal of a hydrogen ion from a neighboring carbon atom, resulting in the formation of a double bond. Since the protonation occurred on the cis isomer, the dehydration reaction will yield the cis isomer of the alkene product, which is 1,2-dimethylcyclohexene.

It's important to note that the trans isomer of the alkene could also be formed as a minor product, but the main product would be the cis isomer.

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Answer:

wym??

Explanation:

...,...................................