question is below! please tell me more than the equation.

Answer:

B. a chemical property

Explanation:

Oxidation requires a chemical reaction to occur, therefore it is a chemical property.

Yes, I am agree with the evaporating dish is not preheated, then the mass of the anhydrate will be heavier, resulting in a greater value for the anhydrate and a smaller value for "z" in this formula:

CuxCly • zH2O

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Famotidine is the name of the generic version of Pepcid, a drug used to treat gastroesophageal reflux disease (GERD).

Famotidine is a member of a group of drugs known as histamine-2 (H2) blockers, which lessen the formation of stomach acid. Famotidine can aid in the relief of GERD symptoms such heartburn, regurgitation, and difficulty swallowing by lowering the quantity of acid in the stomach. There are several different formulations of famotidine, including tablets, capsules, and oral suspension.

Famotidine is a medication that belongs to a class of drugs known as histamine-2 (H2) blockers. It is used to decrease the production of stomach acid and is commonly used to treat conditions such as gastroesophageal reflux disease (GERD), peptic ulcer disease, and Zollinger-Ellison syndrome.

It works by blocking the action of histamine, a chemical in the body that stimulates the stomach to produce acid. By reducing the amount of acid in the stomach, famotidine can help relieve the symptoms of acid reflux and ulcers, such as heartburn, indigestion, and stomach pain.

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The weight percent of NaBr  in this solution is 150% and the mole fraction of NaBr in this solution will be 1.5.

Weight percent is a measure of the amount of solute (in this case, NaBr) in a solution relative to the total weight of the solution.

Weight percent (w/w) = (mass of solute / total mass of solution) x 100

In this case, the solution is 1.5 M NaBr, so we can calculate the mass of the solute:

mass of solute = molarity x molecular weight of solute

mass of solute = 1.5 M x 102 g/mol

mass of solute = 153 g

The total mass of the solution calculated as:

total mass = mass of solute / molarity

total mass = 153 g / 1.5 M

total mass = 102 g

Now we calculate the weight percent:

Weight percent (w/w) = (mass of solute / total mass of solution) x 100

Weight percent (w/w) = (153 g / 102 g) x 100

Weight percent (w/w) = 150%

The mole fraction of a solute is the ratio of the number of moles of the solute to the total number of moles in the solution.

The number of moles of NaBr can be calculated as:

number of moles of NaBr = mass of NaBr / molecular weight of NaBr

number of moles of NaBr = 153 g / 102 g/mol

number of moles of NaBr = 1.5 mol

And the total number of moles in the solution can be calculated as:

total number of moles = number of moles of NaBr / molarity

total number of moles = 1.5 mol / 1.5 M

total number of moles = 1.0 mol

Now we calculate the mole fraction:

Mole fraction = 1.5 mol / 1.0 mol

Mole fraction = 1.5

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Potential energy, because it is stored in the basic building block of all living organisms called cells and is only released when necessary for energy consuming work.

The mass of ammonia that would be produced is 312.5 g

First, we will write a balanced chemical equation for the reaction

The balanced chemical equation for the reaction is

3H₂(g) + N₂(g) → 2NH₃(g)

This means

3 moles of hydrogen gas reacts with 1 mole of nitrogen gas to produce 2 moles of ammonia.

First, we will determine the number of moles of each reactant present

For Hydrogen (H₂)

Mass = 83.6 g

Molar mass = 2.016 g/mol

Using the formula

\(Number\ of\ moles = \frac{Mass}{Molar\ mass}\)

Number of moles of H₂ present = \(\frac{83.6}{2.016}\)

∴ Number of moles of H₂ present = 41.468254 moles

For Nitrogen (N₂)

Mass = 257 grams

Molar mass = 28.0134 g/mol

∴ Number of moles of N₂ present = \(\frac{257}{28.0134}\)

Number of moles of N₂ present = 9.174181 moles

Since,

3 moles of hydrogen gas reacts with 1 mole of nitrogen gas to produce 2 moles of ammonia

Then,

27.522543 moles of hydrogen gas will react with the 9.174181 moles of nitrogen gas to produce 18.348362 moles of ammonia

∴ 18.348362 moles of ammonia will be produced during the reaction

Now, for the mass of ammonia that would be produced

From the formula

Mass = Number of moles × Molar mass

Molar mass of ammonia = 17.031 g/mol

Mass of ammonia that would be produced = 18.348362 × 17.031

Mass of ammonia that would be produced = 312.49095 g

Mass of ammonia that would be produced ≅ 312.5 g

Hence, the mass of ammonia that would be produced is 312.5 g

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Answer:

A. 1,4-dimethylbenzene

Explanation:

The compound CH,CH;CH,CH3 is a benzene derivative with two methyl groups attached to the benzene ring. The positions of the methyl groups on the ring are indicated by the numbers 1 and 4, which correspond to the carbon atoms at the end of the two double bonds in the benzene ring. This compound is therefore 1,4-dimethylbenzene. The other options listed are not correct because they contain the wrong number or type of substituents on the benzene ring.

The correct prediction is: (b) the average kinetic energy of the particles in the cooler solution will increase as they collide with the particles from the warmer solution.

This is because when two aqueous NaCl solutions of equal volume and concentration are kept in flasks at different temperatures and then combined, the energy is transferred from the warmer solution to the cooler solution. As a result, the average kinetic energy of the particles in the cooler solution increases as they collide with the particles from the warmer solution. The transfer of energy occurs because the particles in the warmer solution have a higher average kinetic energy than those in the cooler solution.

As they collide with the cooler solution, they transfer some of their energy to the cooler particles. Eventually, the two solutions will reach thermal equilibrium, at which point the average kinetic energy of all the particles in the mixture will be the same. This is because the energy has been evenly distributed throughout the solution through collisions between particles.

Therefore, the correct prediction is option b.

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Answer:

a) HCl

Explanation:

As we know, that HCl or Hydrogen Chloride is a diatomic compound. It is formed due to the Chemical reaction of Hydrogen and Chlorine. As both Hydrogen and Chlorine have valencies of 1, the Net Valency of the Compound HCl is 1 itself. This separates it from the rest of the compounds. The rest of the compounds need to have more than 2 atoms of each kind and have different valencies too.

The correct answer is B, 3 mitochondria the student sees in the real cell.

The scale of the model is 1 um: 0.5 cm, which means that for every 1 um in the model, there is 0.5 cm in the real cell. The model includes 6 mitochondria, which means that in the real cell, there are 6 × 0.5 cm = 3 um.

Since the scale is 1 um: 0.5 cm, this means that in the real cell, there are 3 / 1 = 3 mitochondria. Therefore, the student sees 3 mitochondria in the real cell.

When a student makes a model of a cell using a microscope, they typically use a scale to represent the size of the cell and its components in the model. The scale is usually expressed as a ratio, such as 1 um: 0.5 cm, which means that for every 1 unit of measurement in the model (in this case, 1 um), there are 0.5 units of measurement in the real cell (in this case, 0.5 cm).

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pH of the solution hat is composed of 175 mL of 0.5 M ammonia, NH₃, with 0.125 mL of 0.5 M HCl is calculated as 9.52.

Molarity (M) is a unit of concentration that represents the number of moles of solute per liter of solution.

Kb = [NH₄⁺][OH⁻]/[NH₃]

Kb = 1.0 x 10⁻¹⁴ / Kb for ammonia, [NH₄⁺] is the concentration of ammonium ion, [OH⁻] is concentration of hydroxide ion, and [NH₃] is  concentration of ammonia.

moles of NH₃ = (175. mL) x (0.5 mol/L) = 87.5 mmol

moles of HCl = (0.125 mL) x (0.5 mol/L) = 0.0625 mmol

moles of NH₃ that react = 0.0625 mmol

moles of [NH₄⁺] produced = 0.0625 mmol

Total moles of ammonia are now: moles of NH₃ = 87.5 mmol - 0.0625 mmol = 87.4375 mmol

[NH₃] = 87.4375 mmol / 0.175 L = 0.4996 M

The concentration of ammonium ion is the same as the moles produced by the reaction and can be calculated as follows: [NH₄⁺] = 0.0625 mmol / 0.175 L = 0.357 M

Kb = [NH₄⁺][OH⁻]/[NH₃]

4.75 = (0.357 M)([OH⁻])/0.4996 M

[OH⁻] = 3.359 x 10⁻⁵M

Kw = [H⁺][OH⁻] = 1.0 x 10⁻¹⁴

pH = -㏒ [H⁺]

[H⁺] = Kw/[OH⁻] = 1.0 x 10¹⁴ / 3.359 x 10⁻⁵ = 2.98 x 10⁻¹⁰

pH = -㏒ (2.98 x 10⁻¹⁰) = 9.52

Therefore, the pH of the solution is 9.52.

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Different factors that could prevent the identification of different compound are overlapping peaks, low boiling point, high volatility, presence of isomeric compounds and peak broadening.

For the following compounds, the factors that could prevent their identification are listed below:

1. Methyl butanoate - Overlapping peaks in the gas chromatography spectrum could prevent the identification of methyl butanoate.

2. Benzaldehyde - A very low boiling point that could cause the compound to evaporate before proper identification could occur. It can degrade over time, especially under certain conditions such as exposure to light or air, which can make it difficult to identify.

3. 1-chlordoutane - Not being compatible with the analytical method being used for identification.

4. 1-chloro-2-methylpropane - The presence of other isomeric compounds that have similar boiling points in the sample.

5. Butan-2-one - Peak broadening in the spectrum that could prevent the identification of the compound.

6. Propan-2-ol - High volatility and reactivity that could make the compound difficult to analyze.

7. Propanal - Not being stable under the analytical conditions used for identification.

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Sorry If This Is Late***

Elements can't be broken down, into a simplre set of properties. They are one strict unit & cannot be broken down, however they can be added together to make a compound.

HOPE THIS HELPS & good luck <3 !!!!!

Answer:

If we can only choose one I would choose the last one

Answer:

The last one

Explanation:

because compounds are made up of two atoms chemically joined together.

Answer:

the equation could have mulitplication and square roots which may change the function of the line

Explanation:

Regions of the Electromagnetic Spectrum

Listed below are the approximate wavelength, frequency, and energy limits

of the various regions of the electromagnetic spectrum.

Wavelength (m) Frequency (Hz) Energy (J)

Radio > 1 x 10-1 < 3 x 109 < 2 x 10-24

Microwave 1 x 10-3 - 1 x 10-1 3 x 109 - 3 x 1011 2 x 10-24- 2 x 10-22

Infrared 7 x 10-7 - 1 x 10-3 3 x 1011 - 4 x 1014 2 x 10-22 - 3 x 10-19

Optical 4 x 10-7 - 7 x 10-7 4 x 1014 - 7.5 x 1014 3 x 10-19 - 5 x 10-19

UV 1 x 10-8 - 4 x 10-7 7.5 x 1014 - 3 x 1016 5 x 10-19 - 2 x 10-17

X-ray 1 x 10-11 - 1 x 10-8 3 x 1016 - 3 x 1019 2 x 10-17 - 2 x 10-14

Gamma-ray < 1 x 10-11 > 3 x 1019 > 2 x 10-14

The ability of an atom to become oxidized is related to its electronegativity. A high electronegativity implies a greater ability to pull electrons away from other atoms, resulting in increased oxidation.

The oxidizing power of a given element or molecule is proportional to its electronegativity. The term electronegativity refers to an element's ability to attract electrons to itself. An atom with a greater electronegativity can pull electrons away from an atom with a lower electronegativity.

It can be said that the greater the electronegativity of an atom, the greater its ability to become oxidized. This is due to the fact that when a substance becomes oxidized, it loses electrons, which are negatively charged. If a substance has a high electronegativity, it has a strong tendency to pull electrons towards itself, making it more susceptible to losing them.

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200 mL of a 0.105 M liquid contain 0.021 mole of potassium bromide.

Potassium Bromide, sometimes known as KBr, is a salt that is commonly used as an anticonvulsant and sedative. Other names for potassium bromide include Kalii bromidum, tripotassium tribromide, and bromide salt of potassium.

KBR provides the essential water and waste water treatment, networks, including management for efficiency and dependability, whether it's to serve agricultural and industrial demands or to supply drinking water. "KBR supplies the essential networks, administration, and wastewater and water treatment with efficiency and dependability."

Molarity (M) = moles of solute / liters of solution

moles of solute = Molarity x liters of solution

moles of \(Kbr = 0.105 mol/L*0.2L=0.021mol\)

Hence, in 200 mL of such a 0.105 M solution, there really are 0.021 moles with KBr (potassium bromide).

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Answer:

to change an atom labeled + ion or -ion into a neutral atom, an electron is either added or removed from it

After the solutions are mixed, a white precipitate of calcium oxalate will form, while the Li+ and Cl- ions will remain in the resulting solution.

When the solutions of CaCl2 and Li2C2O4 are mixed, a double displacement reaction occurs. The calcium ions (Ca2+) from CaCl2 react with the oxalate ions (C2O42-) from Li2C2O4 to form a precipitate of calcium oxalate (CaC2O4) according to the following equation:

CaCl2 + Li2C2O4 → CaC2O4 + 2 LiCl

Since calcium oxalate is insoluble in water, it will form a solid precipitate. The precipitate will appear as a white, finely divided solid in the solution. The remaining ions, Li+ and Cl-, will stay in the solution.

Therefore, after the solutions are mixed, a white precipitate of calcium oxalate will form, while the Li+ and Cl- ions will remain in the resulting solution.

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The enthalpy of the reaction in kj/mole of the solution is 76.51476 Kj/mole.

The amount of heat generated or absorbed in a chemical reaction when the number of moles of the reactants represented by the chemical formula are completely reacted is called the reaction enthalpy. It is expressed as ΔrH.

The change in enthalpy associated with a chemical reaction is called reaction enthalpy, abbreviated ΔH_rxn. The value of ΔH_rxn depends on how the reaction equilibrium equation is written and is usually given in units of kJ/mol-rxn.

The heat of reaction is also called the reaction enthalpy.

For the given problem:

1°C = 1.8991 Kj

40.29°C = 1 × 1.8991

= 76.51476 Kj

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Answer:

Carnivore, as they obtain food from other animals

Answer:

carnivores

Explanation:

Answer:

It is most definitely not a scientific theory. When you eat, say, blueberries for example, do you turn blue? No. It has to do with their genetic makeup, so their parents must have been fun colors.

Explanation:

Answer:

Well yes it is a scientific theory because he examined the birds and gave a hypothesis on why the birds are different colors, before we knew how birds really got their colors, this could actually have been a very good theory. Birds get their colors just because of genetics, we wouldn't know this unless someone made a theory, tested it, and reported it's accuracy.

Answer:

Explanation:

Because they have electrical cords  :P    But really,  b/c electron movement is a convenient attribute of many elements.   The electrons are "loose"  on most metals, so they can conduct electricity.  

Answer:

The benefits of power electronics are: High power density power supplies. Improved efficiency of up to 99% in power conversion. Noise-sensitive applications such as in medical devices are also transitioning to switching power supplies because of the efficiency and reliability.

The molar mass of the nondissociating, nonvolatile sugar is estimated to be 342.73 g/mol.

When 39.8 g of a nondissociating, nonvolatile sugar is dissolved in 200.0 g of water, the boiling point of the water is raised by 0.30°C. To estimate the molar mass of the sugar, we can use the formula:

∆Tb = (Kb x W2)/W1

Here, Kb is the boiling point elevation constant with a value of 0.512 °C/m. W1 represents the mass of the solvent in kilograms, which is 0.200 kg. W2 is the mass of the solute in kilograms.

Given that the boiling point elevation (∆Tb) is 0.30°C and the mass of the solute (sugar) W2 is 39.8 g (0.0398 kg), we can calculate the molar mass using the formula:

Molar mass = (mass × (R × ∆Tb)) / (Kb × W2)

Substituting the known values:

Molar mass = (0.0398 × (8.31 × 0.30)) / (0.512 × 0.200)

After calculation, we find that the molar mass of the nondissociating, nonvolatile sugar is estimated to be 342.73 g/mol.

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