name the three alkenes using systematic names. a. a carbon carbon double bond where one alkene carbon is bonded to two methyl groups. the other alkene carbon is bonded to one methyl and one hydrogen. the name of compound a is: b. a carbon carbon double bond, where one alkene carbon is bonded to two hydrogens. the other alkene carbon is bonded to c h 2 c h 3 and c h 2 c h 2 c h 3. the name of compound b is: c. a carbon carbon double bond where one alkene carbon is bonded to two c h 3 groups. the other alkene carbon is bonded to c h 2 c h 2 b r and hydrogen. the name of compound c is:

Mass conversion from grams to kilograms

In physics and chemistry, it is common to express the mass of an object in grams (g) or kilograms (kg). To convert from grams to kilograms, we divide the mass in grams by 1000. This conversion allows us to express larger masses in a more manageable unit.

For example, in this case, the mass of a 250 ml beaker is 95.4 g. To convert this to kilograms, we divide 95.4 by 1000:

95.4 g / 1000 = 0.0954 kg

Therefore, the mass of the 250 ml beaker is 0.0954 kilograms.

It's important to note that the conversion factor between grams and kilograms is constant and equal to 1000. This means that regardless of the mass, the conversion will always result in the same factor of 1000.

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Answer:

metal or non metal

Explanation:

this is the answer

While performing gel electrophoresis, the buffer is used in the chamber instead of water to maintain the pH.

Buffer is a solution that resists the change in pH of a system. Gel electrophoresis is used to separate DNA or protein or other biological molecules. In gel electrophoresis, the samples are loaded in small holes present at the top of the gel which is covered with the buffer. Then the current is applied which leads to the ionization of water.

Ionization of water releases hydrogen ions and thus it can change the pH and function of the gel. Therefore, to maintain the pH, a buffer is used instead of water.

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Two changes would make this reaction reactant-favored

C. Increasing the temperature

D. Reducing the pressure

Given

Reaction

2H₂ + O₂ ⇒ 2H₂0 + energy

Required

Two changes would make this reaction reactant-favored

Solution

The formation of H₂O is an exothermic reaction (releases heat)

If the system temperature is raised, then the equilibrium reaction will reduce the temperature by shifting the reaction in the direction that requires heat (endotherms). Conversely, if the temperature is lowered, then the equilibrium shifts to a reaction that releases heat (exothermic)  

While on the change in pressure, then the addition of pressure, the reaction will shift towards a smaller reaction coefficient  

in the above reaction: the number of coefficients on the left is 3 (2 + 1) while the right is 2

As the temperature rises, the equilibrium will shift towards the endothermic reaction, so the reaction shifts to the left towards H₂ + O₂( reactant-favored)

And reducing the pressure, then the reaction shifts to the left H₂ + O₂( reactant-favored)⇒the number of coefficients is greater

Answer: C. Increasing the temperature

D. Reducing the pressure

Explanation:

if a neuron's membrane potential is stuck at -60 mV and chloride channels open, chloride ions will travel into the neuron, causing the membrane potential to move towards the equilibrium potential for chloride (-65 mV).

When considering the equilibrium potential for chloride, neurons, and membrane potential, we can analyze the situation as follows:
1. The equilibrium potential for chloride is -65 mV. This is the membrane potential at which there is no net movement of chloride ions across the membrane because the electrical and chemical driving forces are balanced.
2. In this scenario, a neuron's membrane potential is stuck at -60 mV, which is more positive than the chloride equilibrium potential.
3. If chloride channels open at this membrane potential (-60 mV), chloride ions will travel down their electrochemical gradient.
4. Since the membrane potential is more positive than the chloride equilibrium potential, chloride ions will move into the neuron. This influx of negatively charged ions will cause the neuron's membrane potential to move towards the equilibrium potential for chloride (-65 mV).
In summary, if a neuron's membrane potential is stuck at -60 mV and chloride channels open, chloride ions will travel into the neuron, causing the membrane potential to move towards the equilibrium potential for chloride (-65 mV).

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When chloride channels open at a membrane potential of -60 mV, chloride ions would travel into the neuron, causing the membrane potential to become more negative.

If the equilibrium potential for chloride is about -65 mV, and the neuron's membrane potential is stuck at -60 mV, and if chloride channels open, then chloride would travel:

1. Since the equilibrium potential for chloride ions is -65 mV, this indicates that the concentration of chloride ions is higher outside the neuron than inside.
2. When the chloride channels open and the neuron's membrane potential is at -60 mV, it is more positive than the chloride equilibrium potential.
3. Due to the electrochemical gradient, chloride ions will move from an area of higher concentration to an area of lower concentration, which means they will move into the neuron.
4. As chloride ions are negatively charged, their influx will cause the membrane potential to become more negative, moving it closer to the chloride equilibrium potential of -65 mV.

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Answer:

atom and tissue

Explanation:

atoms makes up molecules which makes up cell which makes up tissue which comes together to make up organs

When beta-oxidation occurs in a fatty acid molecule with 22 carbon atoms, 11 acetyl-CoA molecules, 10 NADH molecules, and 10 FADH2 molecules are produced.

Beta-oxidation is the breakdown of fatty acids, which involves catabolism of the molecules. The β-oxidation of a fatty acid molecule with an even number of carbon atoms yields acetyl-CoA as its last product. For every 2-carbon segment of a fatty acid molecule that is metabolized, one molecule of acetyl-CoA, one molecule of FADH2, and one molecule of NADH are generated.

In summary, Beta-oxidation of a 22-carbon fatty acid molecule results in the production of 11 acetyl-CoA molecules, 10 NADH molecules, and 10 FADH2 molecules.

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One 22-carbon fatty acid molecule undergoes seven rounds of beta-oxidation to produce eleven molecules of acetyl-CoA, NADH, and FADH2. Each round of beta-oxidation produces one molecule of acetyl-CoA, three molecules of NADH, and one molecule of FADH2. The acetyl-CoA can enter the citric acid cycle for further oxidation and ATP production, while the NADH and FADH2 molecules can donate electrons to the electron transport chain for the generation of ATP via oxidative phosphorylation.

Therefore, the complete beta-oxidation of one 22-carbon fatty acid molecule produces 11 molecules of acetyl-CoA, 33 molecules of NADH, and 11 molecules of FADH2. These products are important sources of energy for the body, as they can undergo further metabolism to produce ATP through cellular respiration.

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The number of the hydrogen atoms that would be required from the diagram is 10.

A Saturated compound has all its carbon atoms connected by single bonds, and each carbon atom is bonded to the maximum number of hydrogen atoms possible. This arrangement allows the compound to have no available or unsaturated bonds for additional atoms.

The compound that is shown must be butane as such the number of the hydrogen atoms that it contains is a total of ten.

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It can be inferred that due to the relatively slight difference in electronegativity between carbon and hydrogen, and because of its symmetrical tetrahedral shape, methane CH4 is a nonpolar molecule.

Methane is a colorless, odorless gas that occurs naturally in large quantities and is also a byproduct of some human activities. Methane is the most basic hydrocarbon in the paraffin family and one of the most potent greenhouse gases. It has the molecular formula CH4.

Methane is the second most prevalent anthropogenic GHG after CO2, accounting for approximately 20% of world emissions. Compared to carbon dioxide, methane traps heat in the atmosphere 25 times more effectively.

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Answer:

Dependent variable

Explanation:

In every experiment, there must be a dependent variable and an independent variable.

The independent variable is that variable that you have to manipulate in order to receive a response. E.g, in the experiment described in the question, the amount of sunlight a sunflower plant receives is the independent variable.

The dependent variable is the number of seeds produced. It is the response obtained by carefully manipulating the amount of sunlight

Answer:

Carbon Monoxide

Explanation:

that is a gas called Carbon monoxide is colorless, odorless, tasteless gas and it is flammable and kind of toxic to humans and other oxygen breathing organisms.

so therefore Carbon monoxide is the answer

The products in the equation would be  \(CO_2\), \(SO_2\), and \(H_2O\).

From the equation of the reaction:

\(CH_3SH + 4O_2 --- > CO_2 + SO_2 +2H_2O\)

The products are \(CO_2\), \(SO_2\), and \(H_2O\).

This is because, for every chemical equation, the reactants are always at the back of arrows while products are at the front of arrows. In other words, reactants are usually on the left-hand side while products are on the right-hand side.

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Answer:

The tests we can perform on a mineral are b) many common minerals react (effervesce) with dilute hydrochloric acid

Explanation:

This statement is true. Dilute hydrochloric acid is commonly used to test the reactivity of minerals. When certain minerals come into contact with hydrochloric acid, they can undergo a chemical reaction that produces effervescence, or the release of bubbles of gas. This reaction occurs due to the presence of carbonate minerals, such as calcite (CaCO3), which react with the acid to form carbon dioxide gas (CO2). The effervescence is a useful characteristic in identifying certain minerals.

It is important to note that not all minerals react with dilute hydrochloric acid. Minerals that lack carbonates will not show any effervescence when exposed to the acid. Therefore, the absence of effervescence does not necessarily indicate that a mineral is not present; it simply suggests that the mineral does not contain carbonates.

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The amount of heat given off by lead is Q = - 1776.5J

Given,

Mass of the lead = 85g

Decreased temperature = 200 ⁰c to 10 ⁰c

Specific heat capacity of lead= 0. 11 j/g ⁰c

where T1=200degrees Celsius and T2=10 degree Celsius.

Q=MCΔT

ΔT=T2-T1

ΔT=10-200 = -190°C

Q = Change in energy

M = mass of a substance

C= Specific heat capacity

Q = (85g) * (0.11J/g °c) * (-190°C)= -1776.5J

Q=-1776.5J

Specific heat capacity:

A material's specific heat capacity, also known as massive heat capacity, is determined using thermodynamics as the specific heat of an unit of the compound scaled by the the sample's mass.

The specific heat capacity of a substance is defined as the number of heat (J) received per unit of mass (kg) when its temperature increases 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

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Answer:

C, hexanal

Explanation:

Option C is correct. The given name of the aldehyde CH3CH2CH2CH2CH2CHO is Hexanal

Aldehydes are organic compounds formed from the oxidation of alcohols. The contains the group -CHO

Given the compound CH3CH2CH2CH2CH2CHO

For us to name this compound, we need to first know:

Since there are 6 carbons in the chain, hence the alkane equivalent will be hexane.

Since it is an aldehyde compound.

General naming = alkane name + group name of aldehyde

compound name = alkane name + (-nal)

compound name = hexanal

Hence the name of the given aldehyde is Hexanal

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Protons (H⁺) are pumped across the inner mitochondrial membrane as part of the process called electron transport chain, which is an essential step in cellular respiration.

The electron transport chain is responsible for generating adenosine triphosphate (ATP), the main energy currency of cells.

During cellular respiration, electrons are transferred from high-energy molecules (such as glucose) through a series of electron carriers embedded in the inner mitochondrial membrane. As electrons pass through the electron transport chain, energy is released and used to pump protons (H⁺) from the mitochondrial matrix to the intermembrane space.

There are some several reasons;

Establishing an Electrochemical Gradient; The pumping of protons across the inner mitochondrial membrane creates an imbalance of protons, resulting in a higher concentration of protons in the intermembrane space compared to the matrix.

Generation of ATP; The electrochemical gradient created by the proton pumping is utilized by ATP synthase, an enzyme complex embedded in the inner mitochondrial membrane.

Coupling Electron Transport with Proton Pumping; The pumping of protons across the inner mitochondrial membrane is coupled with the flow of electrons through the electron transport chain.

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Answer:

Wouldn't rust because zinc will lose electrons more readily than iron and will therefore oxidize first.

Explanation:

This process whereby rusting of steel is prevented by coating the steel with a layer of zinc is known as galvanization.

Now, in this process, the steel object will be coated in a thin layer of zinc. This coating will prevent oxygen and water from reaching the underneath metal since the zinc will also act as a sacrificial metal.

Now, Zinc is used because it has a lower reduction potential than iron and thus it will get easily more oxidized than iron. Which means the zinc will lose electrons more readily than iron.

Also, since zinc has a lower reduction potential, it is therefore the more active metal. Thus, even if the zinc coating is scratched and the steel is exposed to moist air, the zinc will still get to oxidize before the iron.

Answer:

Start with your basic equation for pH

pH = - log [H+]

then rearrange the equation to solve for [H+]

just like to get move something multiplied from the one side to the other you divide both sides by that number ( a*b = c …. a*b/b = c/b …. a = b/c), you do the ‘inverse’ of a log function, which is 10^

first bring the - over

-pH = log [H+]

then remove the log by taking 10^ on both sides

10^(-pH) = 10^(log [H+])

10^(-pH) = [H+]

and there is your relationship.

Explanation:

The energy of the electron in the excited state is 0.0625 times the energy of the electron in the ground state. This means that the energy of the electron is about 16 times greater in the ground state than in the excited state.

The energy of an electron in the hydrogen atom depends on its principal quantum number (n). The ground state of the electron corresponds to n = 1, while the excited state corresponds to n = 4.
To calculate the energy difference between the ground state and the excited state, we can use the formula for the energy of an electron in the hydrogen atom: E = -13.6 eV/n^2
In the ground state (n = 1), the energy is:
E1 = -13.6 eV/1^2 = -13.6 eV

In the excited state (n = 4), the energy is:
E2 = -13.6 eV/4^2 = -13.6 eV/16 = -0.85 eV
To find how many times the energy of the electron is greater in the excited state than in the ground state, we can divide the energy of the excited state by the energy of the ground state:
E2/E1 = -0.85 eV / -13.6 eV = 0.0625.

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Answer:

10.1 M

Explanation:

Applying,

pH = -log(H⁺).................... Equation 1

But,

[H⁺][OH⁻] = 1×10⁻¹⁴................ Equation 2

Where [H⁺] = Hydrogen ion concentration, [OH⁻] = Hydroxyl ion concentration.

From the question,

Given: [OH⁻] = 1.25×10⁻⁴ M

Substitute into equation 2

[H⁺][1.25×10⁻⁴] = 1×10⁻¹⁴

[H⁺] = 1×10⁻¹⁴/1.25×10⁻⁴

[H⁺] = 0.8×10⁻¹⁰ M

[H⁺] = 8×10⁻¹¹ M

Also, Substitute the value of [H⁺] into equation 1

pH = -log[8×10⁻¹¹]

pH = 10.1 M

Answer:

1. made of substances not chemically combined

2. oxygen

3. carbon dioxide

4. air

5. pure substances cant be separated by physical means

The number of protons and the number of neutrons determine an  element’s atomic mass: mass number = protons + neutrons.

Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the atomic number. In contrast, the number of neutrons for a given element can vary. Forms of the same atom that differ only in their number of neutrons are called isotopes. Together, the number of protons and the number of neutrons determine an element’s mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number. A property closely related to an atom’s mass number is its atomic mass. The atomic mass of a single atom is simply its total mass and is typically expressed in atomic mass units or amu. By definition, an atom of carbon with six neutrons, carbon-12, has an atomic mass of 12 amu. Other atoms don’t generally have round-number atomic masses for reasons that are a little beyond the scope of this article. In general, though, an atom's atomic mass will be very close to its mass number, but will have some deviation in the decimal places. Since an element’s isotopes have different atomic masses, scientists may also determine the relative atomic mass—sometimes called the atomic weight—for an element. The relative atomic mass is an average of the atomic masses of all the different isotopes in a sample, with each isotope's contribution to the average determined by how big a fraction of the sample it makes up. The relative atomic masses given in periodic table entries—like the one for hydrogen, below—are calculated for all the naturally occurring isotopes of each element, weighted by the abundance of those isotopes on earth. Extraterrestrial objects, like asteroids or meteors, might have very different isotope abundances.

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Answer:

Displacement reaction

Explanation:

8.52 m is the height of a barometer column based on 1-iodododecane.

A barometer is described as a scientific instrument that is used to measure air pressure in a certain environment.

For the given question we will use the below formula:

P = dgh, where

g = gravitational force = 9.8 m/s²

h = height

First we calculate the height of the barometer column for the mercury:

Density of mercury = 13.6g/ml (given)

Given pressure = 752 torr =100258.144 N/m²

Height of barometer for mercury = 100258.144 / (13.6×9.8) = 752.23= 0.752

Now we calculate the height of barometer by using the below formula:

d₁h₁ = d₂h₂, where

d₁ = density of 1-iodododecane = 1.20g/mol (given)

h₁ = to find?

d₂, h₂ = density & height with respect to mercury

On putting all values in the above equation we get,

h₁ = 13.6×0.752  / 1.20 = 8.52m

Hence, 8.52m is the height of barometer.

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Complete question:

The compound 1-iodododecane is a nonvolatile liquid with a density of 1.20g/ml. the density of mercury is 13.6g/ml. part a what do you predict for the height of a barometer column based on 1-iodododecane, when the atmospheric pressure is 752 torr ?

Answer:

Drainage basin, also called catchment area, or (in North America) watershed, area from which all precipitation flows to a single stream or set of streams. ... The boundary between drainage basins is a drainage divide: all the precipitation on opposite sides of a drainage divide will flow into different drainage basins.

Explanation:

just looked it up

2.964 liters of 0.0550 M KCl solution contain 0.163 moles of KCl.

We can use the formula:
moles = concentration (in moles per liter) x volume (in liters)

We know the concentration of the solution is 0.0550 M, and we want to find the volume of the solution containing 0.163 moles of KCl. Rearranging the formula to solve for volume, we get:
volume = moles / concentration

Substituting in the values we have:
volume = 0.163 moles / 0.0550 M
volume = 2.964 liters

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The percentage of FeSO4 • 6H20 is Fe is 36.04%.

The iron sulphate or ferrous sulphate is a range of salts with the formula of FeSO4. These are the compounds that exist with the heptahydrate.

The ferrous sulphate is mainly used as a preprocessor for the iron compounds. It is a reducing agent and can be seen in cement to lessen the toxic compounds. It generally consists of 20 to 30% of the elemental, iron per mg of the mineral.

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The average speed of ammonia molecules at 25°C is 650 m/s given that the average speed of oxygen molecules at 25°C is 450 m/s.

The average speed of a gas is directly proportional to the square root of its absolute temperature. Since both gases have the same temperature (25°C), the ratio of their speeds is the square root of the ratio of their molecular weights.

For two gases at the same temperature, the ratio of their speeds is given by:v1/v2=sqrt(M2/M1)where:v1 and v2 are the average speeds of the two gases. M1 and M2 are the molecular weights of the two gases.

So,v2/v1=sqrt(M1/M2) where: v1 = 450 m/sv2 is the required average speed of ammonia molecules.

M1 = molecular weight of oxygen = 32 gmol-1

M2 = molecular weight of ammonia = 17 gmol-1

Putting the values in the above formula,v2/v1=sqrt(M1/M2) => v2/450=sqrt(32/17) => v2=650 m/s.

Therefore, the average speed of ammonia molecules at 25°C is 650 m/s.

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