Suppose a 5.0 L sample of O2 at a given temperature and pressure contains 1.08 x
10^23 molecules. How many molecules would be contained in 5.0 L H2 at the same temperature and pressure?

Answer:

chivalry and the romance of nomadic life. the life of Muhammad. a strict adherence to religious themes.

Explanation:

Sorry if its wrong

Answer:

dfmpfndtngognjf

Explanation:

radiation is energy that comes from a source. (travels through the speed of light)

Structures that can be drawn to represent the covalent bonding in a molecule that has more than one position in the molecule for a multiple bond are known as Position Isomers.

Position isomers are isomers with same chemical formula but the functional group is attached to different position of carbon in different structures.

Example-

Hex1-ene , Hex2-ene, Hex3-ene are position isomers with double bond on first, second and third carbon respectively as shown below-

\(CH_2= CH-CH_2-CH_2-CH_2-CH_3\\CH_3-CH=CH-CH_2-CH_2-CH_3\\CH_3-CH_2-CH=CH-CH_2-CH_3\)

Other examples are pent1-yne and pent2-yne where triple bond is on first and second carbon respectively.

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Answer:

The answer is a gamma particle.

Answer:

beta particle

Explanation:

Answer:

i became freinds with (friends name) because he liked me for me and he did not make fun of me when i did something inbarrasing at school he always made me lough to.

Explanation:

Answer:

During cellular respiration, a glucose molecule is broken down into carbon dioxide and/or water.

Answer:

respiration is a process of gaining. energy and it use a row material like oxygen and glucose and the products will be ATP(energy), ethanol, CO2 the cellular part which is responsible for this is mitochondria, please this process is involved by yeast

Answer:

Explanatthe tryposphereion:

Explanation:

none of them

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Answer:

C

Explanation:

4 - H - 4

2 - O - 2

each side of the arrow has an equal amount of elements

1. One way to visualize colorless compounds on a TLC (thin-layer chromatography) plate is by using a UV lamp. Compounds that absorb UV light will appear as dark spots on the fluorescent background of the silica gel plate.

2. Increasing the polarity of the developing solvent on a silica gel TLC plate will generally increase the Rf (retention factor) of a compound. This is because polar solvents can more effectively dissolve and mobilize polar compounds, causing them to travel further up the plate along with the solvent front.

3. To calculate Rf from a developed TLC plate, measure the distance traveled by the compound and divide it by the distance traveled by the solvent front. Rf = (distance traveled by compound) / (distance traveled by solvent front). Rf values typically range from 0 to 1, with higher values indicating greater mobility of the compound on the plate.

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Answer:

The correct option is B

Explanation:

The number of valence electron(s) increases across the period and thus influences the direction of periodic trend of electronegativity, electron affinity and ionization energy across the period. Thus, making option B the answer.

It should be noted that option A is wrong because elements in the same period generally have the same number of electron shells and thus the distance of this shells from the nucleus remains the same throughout the same period and thus option C is also wrong. Option D is wrong because the periodic trends have to do with chemical reactions which actually involves electrons and not protons.

Dalton's atomic theory proposed that all matter is composed of atoms which are indivisible and indestructible. Thomson's model of an atom states that an atom comprises electrons distributed between a sea of protons in the same fashion as seeds in a watermelon/plum.

In contrast to Thomson, who focused on the presence of quantum particles that existed within an atom as well as their configurations, Dalton suggested that an atom had been indivisible and indestructible. Thomson, in contrast, thought that an atom was indeed a variable quantity.

According to Dalton's atomic theory, the solid atom would be a single entity that lacks both structure and components. Atoms are formed of positive as well as negative charges according to Thomson's hypothesis. It doesn't consist of a single particle as a result.

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2 C4H10 + 13 O2 → 8 CO2 + 10 H2O.

In a combustion reaction, entropy plays a role in determining the direction of the reaction and the amount of heat released.

According to the second law of thermodynamics, a reaction is favored if it leads to an increase in the overall entropy of the system. In a combustion reaction, the breaking of chemical bonds in the reactants leads to the formation of new bonds in the products, resulting in an increase in the number of microstates and entropy.

The heat released in the reaction also contributes to the increase in entropy. As a result, combustion reactions are generally exothermic and spontaneous.

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The glucose that is derived from citric acid cycle molecules must do so via gluconeogenesis. Gluconeogenesis is a metabolic pathway that results in the production of glucose from non-carbohydrate carbon substrates such as amino acids, lactate, and glycerol in the liver and kidneys.

Therefore, Gluconeogenesis is the process of generating glucose from non-carbohydrate carbon substrates in the liver and kidneys. Glucose produced by gluconeogenesis is used by the brain and red blood cells as an energy source. It's an important metabolic pathway that maintains blood glucose levels during fasting periods and is also essential for individuals on a low-carbohydrate or ketogenic diet.

Hence, glucose derived from citric acid cycle molecules must do so via gluconeogenesis.

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we find the energy to be approximately \(3.41 * 10^-19\) Joules is the answer.

To calculate the wavelength of a photon with a frequency of 61.7 MHz, we can use the formula: wavelength = speed of light / frequency. The speed of light is approximately\(3 * 10^8\) meters per second.

Converting the frequency to Hz (\(1 MHz = 10^6 Hz\)), we have \(61.7 * 10^6\)Hz.

Plugging these values into the formula, we get: wavelength =\((3 * 10^8 m/s) / (61.7 * 10^6 Hz).\)

Simplifying, we find the wavelength to be approximately 4.862 meters.

Now, to calculate the energy of a photon with a wavelength of 582.8 nm, we can use the equation: energy = Planck's constant × speed of light / wavelength.

Planck's constant is approximately \(6.63 * 10^-34\) Joule-seconds.

Converting the wavelength to meters (\(1 nm = 10^-9 m\)), we have \(582.8 * 10^-9 m.\)

Plugging these values into the equation, we get: energy =\((6.63 * 10^-34J·s) * (3 * 10^8 m/s) / (582.8 * 10^-9 m).\)

Simplifying, we find the energy to be approximately \(3.41 * 10^-19\) Joules.

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The skeletal formula for the given structure is C₃H₆BrCl. Hence, the correct option is option (C).  

Skeletal formula is defined as the formula which shows the bond present between the atoms forming a compound.

Given skeletal formula is a condensed skeletal formula.

In this formula, the vertex or ends of a bond represents carbon atoms and rest of the positions are occupied by hydrogen atoms.

Carbon atom has a valency of 4 and it can bond to 4 other atoms only.

For the given structure,

Number of carbon atoms = 3

Number of hydrogen atoms = 6

Number of bromine atom = 1

Number of chlorine atom = 1

Hence, the chemical formula will be  \(C_3H_6BrCl\).

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Answer:

The answer is the third. C₃H₆BrCl

Explanation:

edge. You’re welcome

Hi there.

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Another name for Helium Nucleus is Alpha Particle.

Alpha Particles are the same as a Helium Nuclues, just a different word usage. They have the same definitions.

Thanks for your question.

- Tutor John

Answer:

Extensive properties, such as mass and volume depend on the amount of substance present and are not useful in the identification of a substance. In this experiment, we will use three properties to identify a liquid substance: solubility, density and boiling point.

Answer:

a soft, spongy material that may be changed into coal

Explanation:

Answer:

Lattice energy is an estimate of the bond strength.

The chemical formula for lithium hydrogen sulfite is \(LiHSO_3.\)

Lithium hydrogen sulfite is an inorganic compound composed of lithium (Li+) cation and the hydrogen sulfite (HSO3-) anion. The hydrogen sulfite anion consists of a sulfur atom bonded to three oxygen atoms, one of which also has a hydrogen atom bonded to it. The compound is formed through the reaction between lithium hydroxide (LiOH) and sulfur dioxide (SO2), resulting in the formation of lithium hydrogen sulfite as a solid precipitate. It is commonly used as a reagent in organic synthesis and as an intermediate in the preparation of other lithium salts.

Lithium hydrogen sulfite is a white crystalline solid that is soluble in water. It can undergo chemical reactions such as hydrolysis or decomposition when exposed to certain conditions. The compound is known for its acidic properties due to the presence of the hydrogen sulfite anion, which can release hydrogen ions (H+) in aqueous solutions. Overall, the chemical formula \(LiHSO_3.\)represents the composition and structure of lithium hydrogen sulfite, indicating the presence of lithium, hydrogen, sulfur, and oxygen atoms in the compound.

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The chemical formula for lithium hydrogen sulfite is LiHSO3. It is formed from the reaction of lithium, which carries a +1 charge, and the hydrogen sulfite ion, which carries a -1 charge, making the resulting compound electrically neutral.

The chemical formula for lithium hydrogen sulfite is LiHSO3.

Lithium is a part of the alkali metal family and it carries a +1 charge due to its one extra electron in the outermost shell, which we can represent as [He]2s¹. Hydrogen sulfite, on the other hand, is a polyatomic ion where sulfur is attached to three oxygen atoms and one hydrogen atom carrying a total charge of -1. When these two components combine, they form lithium hydrogen sulfite.

The balance of charges in this compound is key. In chemistry, compounds must be electrically neutral, meaning the total positive charge must equal the total negative charge. The +1 charge from lithium and the -1 charge from the hydrogen sulfite ion balance each other out, leading to a neutral compound.

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Answer:

The enthalpy change of solution refers to the amount of heat that is released or absorbed during the dissolving process (at constant pressure). This enthalpy of solution ( ΔHsolution ) can either be positive (endothermic) or negative (exothermic).

WHILE The enthalpy of dissolution (ΔH) is the heat released or absorbed when a specified amount of a solute dissolves in a certain quantity of solvent at constant PRESSURE.

The correct option is 2. cesium.

The following information should be considered:

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