when cooked in an acidic medium, anthoxanthins become more

a) Solubility in water: Take the square root of Ksp. b) Solubility in 0.10 M AgNO3: No significant change due to common ion effect. c) Solubility in 0.43 M K2SO4: Consider additional sulfate ions and calculate solubility using total concentration.

a) The solubility of silver sulfate in water can be calculated by taking the square root of the Ksp value.

b) The solubility of silver sulfate in 0.10 M AgNO3 will not change significantly because AgNO3 is a common ion and will already be present in high concentration.

c) The solubility of silver sulfate in 0.43 M K2SO4 can be calculated by considering the common ion effect. The concentration of sulfate ions from K2SO4 will increase the solubility of silver sulfate but will need to be accounted for in the calculation.

To calculate the solubility in each case, use the Ksp expression: Ksp = [Ag+]^2[SO4^2-].

For case a), take the square root of the Ksp value to find the solubility in water.

For case b), the solubility will remain similar to the solubility in water due to the common ion effect.

For case c), consider the additional sulfate ions from K2SO4. The total concentration of sulfate ions will be the sum of the initial sulfate concentration from Ag2SO4 and the added concentration from K2SO4. Use this total concentration to calculate the solubility of silver sulfate.

By applying the appropriate calculations, the solubility of silver sulfate can be determined for each given scenario.

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Answer:

1. changing from liquid to gas state

Evaporation

2. the combining substances in a reaction

Reactants

3. radiation

Gamma Rays

4. slow oxidation

Rust

5. melting point of water

0˚ C (0 degrees Celsius)

6. a reaction between a substance and oxygen

Oxidation

7. pertaining to the nucleus of an atom

Nuclear

8. to fuse or join together

Fusion

9. rapid oxidation

Burning

10. heat

Thermo-

The change in liquid to gas state is called evaporation.  Evaporating a liquid will energize the molecules and converts them to the gaseous state.

A change in state or phase of a substance is called a physical change where, one state changes to the other like liquid vaporize to form gases.

Thus, first option is matching with 4th one evaporation.

The combining substances in a reaction is called reactants.

One example of radiation given here is gamma rays.

An example of slow oxidation is rusting that is the formation of red iron oxide on corroding metals.

Melting point of water is 0 ⁰C.

A reaction between a substance and oxygen is called oxidation.

A common  term pertaining to the nucleus and of an atom is nuclear.

The process of fusing or joining of two species together is called fusion.

Thermal process are involving rapid oxidation.

Heat is a form of energy where overheating anything causes burning.

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Answer:

Sound waves travel at different speeds when traveling through different materials

Explanation:

This is because in water the particles are more closely packed together, therefore making the sound travel faster and sound louder. The opposite is the same for air.

STEP-BY-STEP EXPLANATION:

Given the below compound

The oxygen molecule needs to cross three phospholipid bilayers.

The process of ATP synthesis in which electrons are transported from NADH or FADH2 to oxygen is known as oxidative phosphorylation. The process of cellular respiration ends at this stage. Chemiosmosis and the electron transport chain are two interrelated processes that make up oxidative phosphorylation. As electrons move from one molecule to the next in the electron transport chain, energy is released throughout the process, which is then utilized to create an electrochemical gradient. However, during chemiosmosis, ATP is produced using the energy stored in the gradient.

Oxygen is found at the end of the electron transport chain, where it takes electrons and picks up protons to make water.

Therefore, it follows that a molecule of oxygen must travel through three phospholipid bilayers, which are represented by the cell membrane and the external and internal membranes of the mitochondria, in order for it to go through the electron transport chain.

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Answer:

The answer is Observation 1 is a result of copper atoms losing two electrons.

Explanation:

The electrons result in the color change of the copper strip, causing the gray particles to join onto the metal.

Answer:

C

Explanation:

Observation 1 is a result of the copper atoms losing two electrons. It came out as the right answer.

Answer:

Rocky road ice cream is an example of a __________Homogeneous___________ mixture.

The molarity of a solution when 14.1332 g of calcium chloride (cacl2) is dissolved in 146.0 ml of deionized water is 0.000871mol/ L

No. of moles of the solute divided by the volume of the solution is known as molarity.

146 mL or 0.146 L moles of solution are used. Cacl2 is calculated as follows: mass of cacl2 / molar mass of cacl2 moles of cacl2 = 14.13/111 = 0.12729mol

No. of moles of the solute divided by the volume of the solution is known as molarity (M) (L)

Molarity (M) equals 0.12729 mol / 0.146 L, or 0.000871 mol / liter.

Molar concentration, also known as molarity, quantity concentration, or substance concentration, is a unit used to describe the amount of a substance in a solution expressed as an amount of substance per unit volume of solution.

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Answer:

This is what we're given:

P (pressure), which is 1.95 atm

V(volume), which is 11.30 L.

n(number of moles), which is 0.554 moles of helium gas.

We have to find T, or temperature. To do this, we'll need to use the Ideal Gas Law, which is:

\(PV = nRT\)

Rearranging this equation to get temperature on one side, we get:\\ \(T =\frac{PV}{nR}\\ \\

Pressure \: is \: in \: atm \: and \\ volume \: is \: in \: L . \: This \: tells \\ \: us \: that \: we'll \: need \: to \: \\ use \: the \: value \: of \: 0.08206 L atm/K \: mol \: for \: R \: the \: ideal \: gas \: constant.\\ \\ Plugging in all of the values, we can solve for temperature:

\(T =\frac{PV}{nR}\\ \\

T = (1.95 atm × 12.30 L) ÷

(0.654 mol × 0.0820575LatmK−1)

mol

\(T =\frac{PV}{nR} \\ \\

T =

\frac{ (1.95 atm × 12.30 L)}{(0.654 mol × 0.0820575LatmK−1)} \)

\(T = 447 K \)

Boyle’s Law (PV law)

a. Volume of a GIVEN MASS OF GAS (mass is fixed) is inversely proportional to the Absolute pressure of the gas at constant Temperature.

b. Absolute pressure means pressure that is measured relative to Vacuum. Vacuum = 0 pressure. Thus, absolute pressure is measured relative to absolute 0.

c. Another way : PV = Constant. Thus, if you measure the Pressure and Volume at 3 different times, then P1 V1 = P2 V2 = P3 V3. In order to keep the product as a constant, whenever Pressure increases, the Volume will decrease.

Charle’s Law (VT Law)

a. Volume of a GIVEN MASS OF GAS (mass is fixed) is directly proportional to the Absolute Temperature at constant pressure.

b. When you measure the Temperature of a body on a scale in which 0 corresponds to Absolute 0, then the measured temperature is Absolute Temperature. Put simply, this refers to the Kelvin scale.

c. Absolute 0 is the temperature at which objects are at their lowest possible energy (Since Temperature is a measurement of the Kinetic energy of the atoms).

Gay Lussac Law (PT Law)

a. Pressure of a GIVEN AMOUNT OF MASS (mass is fixed) at constant volume is directly proportional to the absolute Temperature (that is, Kelvin Temperature).

b. Another way : P / T = Constant. P1 / T1 = P2 / T2 = P3 / T3.

Avogadro’s law (Vn law)

a. All the above laws were talking about relationships at fixed mass. So we needed a law which would relate mass with other quantities. This is Avogadro’s law.

b. It is a very straight forward law, if the amount of gas in a Container increases (that is, if the amount of matter increases), then the Volume of the gas increases which is very straight forward.

c. Volume is directly proportional to n (number of moles) or V/n = Constant.

Considering the Ideal Gas Law, at 485.05 °K 0.554 moles of helium gas will occupy 11.30 liters at 1.95 atmospheres.

On the other side, the 4 gas laws are Gay Lussac's law, Boyle's law, Charles' Law and Avogadro's law.

Ideal gases are a simplification of real gases that is done to study them more easily. It is considered to be formed by point particles, do not interact with each other and move randomly. It is also considered that the molecules of an ideal gas, in themselves, do not occupy any volume.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:

P×V = n×R×T

where:

In this case, you know:

Replacing in the Ideal Gas Law:

1.95 atm×11.30 L = 0.554 moles× 0.082 \(\frac{atm L}{mol K}\)× T

Solving:

T= (1.95 atm×11.30 L) ÷ (0.554 moles× 0.082 \(\frac{atm L}{mol K}\))  

T= 485.05 K

Finally, at 485.05 °K 0.554 moles of helium gas will occupy 11.30 liters at 1.95 atmospheres.

Gay Lussac's law states that the pressure of the gas is directly proportional to its temperature: when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, gas pressure decreases.

Boyle's law says that volume is inversely proportional to pressure: if pressure increases, volume decreases; while if the pressure decreases, the volume increases.

Charles' Law that the volume is directly proportional to the temperature of the gas: if the temperature increases, the volume of the gas increases; while if the temperature of the gas decreases, the volume decreases.

Avogadro's law states that the volume is directly proportional to the amount of gas: if the amount of gas increases, the volume will increase, while if the amount of gas decreases, the volume will decrease.

In summary, the 4 gas laws are Gay Lussac's law, Boyle's law, Charles' Law and Avogadro's law.

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Answer: \(\text{N}_{5}\text{O}_{10}\)

Explanation:

This means the molecular mass of nitrogen dioxide is \(14.0067+2(15.9994)=46.0055\) g/mol.

Dividing this molecular mass of the compound we need to find, we get that

\(\frac{230.05}{46.0055} \approx 5\).

So, the final answer is \(\boxed{\text{N}_{5}\text{O}_{10}}\)

The average atomic mass of silver is approximately 108.3324. The mass of an atom is defined as its atomic mass.

The two isotopes of silver are Ag-107 (60 neutrons) and Ag-109 (62 neutrons).

To calculate the average atomic mass of silver, we need to multiply the mass of each isotope by its natural abundance, then add these values together.

Ag-107 has a mass of 107

Natural abundance of 51.83%,

so its contribution to the average atomic mass of silver is 107 * 0.5183 = 55.8391

Ag-109 has a mass of 109 and a natural abundance of 48.17%,

so its contribution to the average atomic mass of silver is 109 * 0.4817 = 52.4933

The average atomic mass of silver is the sum of these two values,

which is 55.8391 + 52.4933 = 108.3324.

So, the average atomic mass of silver is approximately 108.3324.

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About 180 grams of Ca(OH)₂ are also produced when 4.86 gram of carbon dioxide is produced.

According to the balanced chemical equation,

CaH₂ + 2H₂O → Ca(OH)₂ + 2H₂

1 mole of CaH₂ reacts with 2 moles of H₂O to produce 1 mole of Ca(OH)₂ and 2 moles of H₂. Thus, 4.86 moles of H₂ are produced by the reaction. As each mole of CaH₂ produces 2 moles of H₂, we can say that,

n(CaH₂) = n(H₂)/2 = 4.86 mol / 2 = 2.43 mol

Now, using the stoichiometry of the reaction, we can calculate the number of moles of Ca(OH)₂ produced as,

n(Ca(OH)₂) = n(CaH₂) = 2.43 mol

Now, the mass of Ca(OH) is,

M(Ca(OH)₂) = 74.10 g/mol

Plugging in the values, we get,

m(Ca(OH)₂) = 2.43 mol x 74.10 g/mol

m(Ca(OH)₂) = 180 g

Therefore, 180 grams of Ca(OH)₂ are produced.

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Answer:

90 kilojoules of heat energy

Explanation:

I don't really know why this is just the answer to it on my quiz so if someone else can explain.

Answer:

1,3,2

Explanation:

N2 + 3H2-----> 2NH3

Answer:

Since you are producing 3.6 mol CO2, you can calculate the starting moles of CH4 with the simple mole-to-mole ratio: 1 mol CH4 / 1 mol CO2 as a conversion factor. Taking 3.6 mol CO2 x 1 mol CH4 / 1 mol CO2 = 3.6 mol CH4 (after canceling out the moles of CO2 on the top and bottom of the calculation)

Explanation:

To find the new density of the brass cylinder hanging in salt water, you can use the concept of apparent weight. Apparent weight is the weight of an object when it is submerged in a fluid, and it is equal to the actual weight minus the buoyant force.                                                                                                                                                                            

The buoyant force is the force exerted by the fluid on the object, which is equal to the weight of the displaced fluid.
So, to find the new density of the brass cylinder, you would first measure its apparent weight when it is submerged in salt water. Then, you can use the equation for apparent weight to calculate the buoyant force and subtract it from the actual weight of the brass cylinder.
Once you have the actual weight and the apparent weight, you can use the equation for density to find the new density of the brass cylinder in salt water. Density is the mass per unit volume of an object, so you would need to measure the volume of the brass cylinder as well.Buoyant force can be found by calculating the weight of the displaced saltwater volume, which is equal to the volume of the submerged brass cylinder.

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Answer:5800

Explanation:You convert grams to milligrams which bring the decimal 3 spaces to the right

Answer:

300 dm³

Explanation:

According to the information given in this problem, SO₂ is 24 dm³/mol at rtp.

We are trying to find the volume of 12.5 moles of SO₂, so we can do the following math to solve:

12.5 mol SO₂ × 24 dm³/mol ⇒ mol cancels out, leaving us with dm³

300 dm³

Therefore, the volume occupied is 300 dm³

The equilibrium involving H₂PO₄⁻ and HPO₄²⁻ in phosphoric acid is a useful buffer system for maintaining the physiological pH range.

To be a useful buffer for physiological pH, a system must have an equilibrium that lies within the pH range of interest, which is approximately 7.35 to 7.45 for physiological conditions. Phosphoric acid (H₃PO₄) is a polyprotic acid, meaning it can donate multiple protons.

Among the three ionization steps of phosphoric acid, the second equilibrium involving the dissociation of H₂PO₄⁻ (dihydrogen phosphate) can be a useful buffer for physiological pH. The equilibrium reaction is as follows:

H₂PO₄⁻ ⇌ H⁺ + HPO₄²⁻

The pKa value for this equilibrium is around 7.21, which is close to the physiological pH range. At physiological pH, H₂PO₄⁻ acts as a weak acid, donating protons to maintain the pH within the desired range. Meanwhile, HPO₄²⁻ acts as the corresponding conjugate base, accepting protons to resist pH changes.

Therefore, the equilibrium involving H₂PO₄⁻ and HPO₄²⁻ in phosphoric acid is a useful buffer system for maintaining the physiological pH range.

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Period 2 elements are Lithium (Li), Berillium (Be), Boron (B), Carbon (C), Nitrogen ( N), Oxygen (O), Fluorine (Fe), Neon (Ne).

Period 3 elements are Sodium (Na), Magnesium (Mg), Aluminum (AI), Silicon (Si), Phosphorus (P), Sulfur (S), Chlorine (CI, Argon, (Ar)

Define periodic table.

All identified chemical elements are arranged in rows (referred to as periods) and columns (referred to as groups) in the periodic table of chemical elements, also known as the periodic table, in ascending order of atomic number.

Period 3 elements have a tendency toward being hard (APART FROM Group 1), glossy, and having a metallic shine. They are also solids at room temperature and pressure (apart from mercury, which is a liquid metal), and they are good electrical conductors.

All elements in period 2 experience a decrease in atomic radius, an increase in electronegativity, and an increase in ionization energy as their atomic number rises. Only two metals (lithium and beryllium) are present in Period 2, which is fewer than any other period in terms of both quantity and proportion.

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Answer: In the titration reaction, HNO3 and Mg(OH)2 react in a 1:1 stoichiometric ratio. Therefore, we can use the balanced equation to determine the number of moles of Mg(OH)2 in the 20.0 ml solution:

HNO3 + Mg(OH)2 → Mg(NO3)2 + 2 H2O

Since the HNO3 solution has a concentration of 0.25 M, we can calculate the number of moles of HNO3 used in the titration:

moles of HNO3 = concentration x volume = 0.25 M x 40.0 mL = 0.0100 moles

Since Mg(OH)2 reacts in a 1:1 stoichiometric ratio with HNO3, we know that the number of moles of Mg(OH)2 in the 20.0 ml solution is also 0.0100 moles.

Therefore, the original concentration of the Mg(OH)2 solution can be calculated using the following formula:

concentration = moles / volume

concentration = 0.0100 moles / 20.0 mL

concentration = 0.500 M

Therefore, the original concentration of the Mg(OH)2 solution is 0.500 M.

Explanation:

The concentration of the original Ba(OH)₂ solution if a 25.0 ml solution of BA(OH)₂ is neutralized with 29.4 ml of 0.250 m HBr is 0.2935 M.

The concentration of the original Ba(OH)₂ solution can be determined using the formula M₁V₁ = M₂V₂, where M₁ is the molarity of the Ba(OH)₂ solution, V₁ is the volume of the Ba(OH)₂ solution, M₂ is the molarity of the HBr solution, and V₂ is the volume of the HBr solution.

To find the concentration of the original Ba(OH)₂ solution, we can use the equation for neutralization reactions:

25.0 mL Ba(OH)₂ + 29.4 mL HBr → Moles of HBr = 0.250M × 0.0294 L

= 0.007350 Moles of Ba(OH)₂ = 0.007350 Moles Ba(OH)₂

= 0.007350/0.025L = 0.294 M

Therefore, the concentration of the original Ba(OH)₂ solution is 0.2935 M.

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The correct IUPAC name for the tertbutyl substituent is a. (1,1-dimethylethyl). This is because the tertbutyl group is a branched alkyl group with four carbon atoms.

The prefix "tert-" indicates that the carbon atom attached to the rest of the molecule is attached to three other alkyl groups. The prefix "but-" indicates that the group has four carbon atoms, and the suffix "-yl" indicates that it is an alkyl group. The prefix "1,1-dimethyl-" indicates that there are two methyl groups attached to the first carbon atom of the butyl group. Therefore, the correct IUPAC name for the tertbutyl substituent is (1,1-dimethylethyl).
It is important to know the correct IUPAC name of a molecule or substituent because it provides a standardized way of naming compounds, which allows chemists to communicate effectively and avoid confusion. The IUPAC naming system is based on a set of rules that can be applied to any organic compound, allowing for easy identification and classification of different compounds.

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The amount of ionization produced in the air when ionizing radiation is present is known as ionization.

Ionization is the process by which an atom or molecule loses or gains an electron, resulting in a charged particle known as an ion.

Ionization can occur due to various physical and chemical processes, such as exposure to high-energy radiation or contact with an electrically charged object.

In the given question, the amount of ionization produced in the air when ionizing radiation is present is known as ionization.

Therefore, the answer is ionization.

The amount of ionization produced in the air when ionizing radiation is present can be measured using units such as the Roentgen (R) or Gray (Gy).

Radiation can have both positive and negative effects on living organisms.

Ionizing radiation is particularly harmful as it can cause damage to DNA and other cellular components, leading to mutations, cancer, and other diseases.

It is important to take appropriate safety measures when working with ionizing radiation to minimize exposure and potential harm.

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Answer:

Nitrogen Trifluoride

Explanation:

The name of the compound  given in the question is nitrogen trifluoride.

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

They have a unique chemical structure held together by chemical bonds Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.

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Due of the weak intermolecular interactions, it has a high melting point.

A force that attracts the protons or positive parts of one molecule to the electrons or negative parts of another molecule is known as an intermolecular force. A substance's various physical and chemical properties are influenced by this force. The strength of an object's intermolecular forces determines its boiling point; the higher the intermolecular forces, the higher the boiling point.

We can compare the intermolecular forces between different substances by comparing their boiling points. This is so that these intermolecular interactions can be broken and the liquid can be transformed into vapour using the heat that the substance absorbs at its boiling point.

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Answer:

80

Explanation:

W know that, the atomic no of lead (Pb) is 82. The no of protons is equal to the atomic no.

No of protons = 82

It has a charge of +2. It means that its lacks 2 electrons. No of electrons is :

e = 82-2

e = 80

Hence, Pd will have 80 electrons now.

Answer:

C

Explanation:

A gas is a state of matter that has no fixed shape and no fixed volume gases have lower density than other states of matter such as solids and liquids.

here's the answer to your question

The relative mass of the magnesium oxide (MgO) is equal to 40 g. The percentage by mass of magnesium in MgO is 60 %.

The mass percentage of any element in a particular compound can be calculated from the number of parts by mass of the element in 100 parts by mass of a given compound.

Calculate the molar mass of the given compound by adding the atomic masses of the present elements. Then, the percentage of each element can be determined by dividing the total mass of the element by the molar mass of the compound multiplied by 100.

Given, the molecular formula of magnesium oxide is MgO. The atomic mass of Mg and O is 24 g and 16 g respectively.

The relative formula mass of the MgO = 40 g/mol

The mass percentage of the Mg = (24/40) × 100 = 60 %

Therefore, the mass percentage of the Mg in MgO is equal to 60 %.

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