how many hydrogen atoms are in an unbranched alkene with one double bond and 5 carbon atoms?

4.08 moles of O2 are required to react completely with 5.2 moles C6H14.

Chemical equations that are out of balance have the number of atoms of each element on the left side of the equation not matching the number of atoms of each element on the right side. Chemical reactions cannot be correctly represented by equations that are not balanced; balanced equations are necessary.

A. To balance the equation, we need to determine the correct coefficients (α, β, γ, δ) for the reactants and products such that the number of atoms of each element is equal on both sides of the equation.

We can see that we need 14 carbon atoms on both sides, 14 hydrogen atoms on both sides, and 6 oxygen atoms on both sides

Balancing the equation:

C6H14(g) + 19/5 O2(g) → 6CO2(g) + 7H2O(g)

B. To determine the moles of O2 required to react completely with 5.2 moles of C6H14, we can use the balanced equation. We know that the ratio of C6H14 to O2 is 1:19/5. Therefore, to react completely with 5.2 moles of C6H14, we need 19/5 * 5.2 moles of O2, which is approximately 4.08 moles of O2.

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The reaction will be spontaneous value of ΔSuniv = -116 J/K

a) ΔSsurr = -ΔH∘rx/T  

ΔSsurr = -84 kJ/ 300 K = 0.28 kJ/K = 28.0 J/K

ΔSuniv = ΔSsyst + ΔSsurr

ΔSuniv = -144J/K + 28.0 J/K = -116 J/K

This will be spontaneous

b) ΔSssur = -84 kJ/ 751 K = 0.1118 kJ/K = 111.8 J/K

ΔSuniv = 144J/K + 111.8 J/K = 255.8 J/K

This is non-spontaneous

c) ΔSssur = - 84 kJ/ 300 K = - 28.0J/K

ΔSuniv = - 144J/K + (-28.0) J/K = - 172 J/K

This will be spontaneous

d) ΔSssur = +84 kJ/ 406 K = 0.2068 kJ/K = 206.8 J/K

ΔSuniv = 144J/K + 206.8 J/K = 350.8 J/K

This will be non-spontaneous

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Prevention of an epidemic is different from the prevention of a pandemic because the first situation does not involve the spread of the pathogenic agent worldwide.

The major difference between a pandemic situation and an epidemic situation is based on the fact that an epidemic is restricted to a certain area while a pandemic encompasses worldwide.

Therefore, with this data, we can see that the major difference between a pandemic situation and an epidemic situation is the length of extension of the invective agent.

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The R side chain imparts the unique characteristics to an amino acid.

Amino acids are organic compounds that have a characteristic carboxyl group (-COOH) and an amino group (-NH2) as well as an R group. The R group, also known as the side chain, is a unique group of atoms that imparts distinct chemical properties to each amino acid. The R group can be polar or non-polar, acidic or basic, hydrophobic or hydrophilic, and it can also be an aromatic group, a sulfur-containing group or others.

The R group is what makes each amino acid unique, determining its chemical properties and its role in biological processes. For example, the R group of glutamic acid is polar and acidic while the R group of alanine is nonpolar and neutral. The unique properties of the R group determine how the amino acid interacts with other molecules and how it functions in biological systems such as enzymes and proteins.

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There are 2.15 cm between each 100 mL mark. The formula; is used to determine a cylinder's molarity volume. V = πr^2h.

The number of moles of a solute per liter of a solution is known as molarity. The molar concentration of a solution is another name for molarity.

The term "total moles of a solute contained in a kilogram of a solvent" is used to describe molality. Molal concentration is another name for molality. It gauges the amount of solute in a solution.

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A- + H2O -> HA + OH-, anion that acts as the nucleophile of a dangerous chemical is pH- neutral, according to the question, anion that is organic compound with the formula of such a weak base is itself a weak base.

The fundamental elements that are unable to completely oxidise in water are known as weak bases. Ammonia is one substance that is a weak base. When NH3 is dissolved by water, some of it interacts with the water vapor and breaks down into ammonium ion and hydroxide anions.

NaOH totally separates from water to produce Na+ and OH. Because all of the [OH] in NaOH is in the solution as [OH] that is ready to receive protons, it is regarded as a strong base.

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Answer:

0.5 mol

Explanation:

37/(40+2+32)=0.5 mol

Answer: 2.94x10^22 atoms of O2

Explanation:

To determine the number of atoms in a given volume of a gas, you need to know the molar volume of the gas and the number of moles of the gas present.

The molar volume of a gas at standard temperature and pressure (STP) is 24.45 L/mol. At STP, the pressure is 1 atm and the temperature is 0°C (273.15 K).

So, to find the number of moles of a gas present in a container, you can use the Ideal Gas Law: PV = nRT.

Where:

P = pressure (atm)

V = volume (L)

n = number of moles

R = ideal gas constant (0.0821 L·atm/mol·K)

T = temperature (K)

So we can rearrange the formula to find n = PV/RT

n = (2.44 atm * 2.54 L) / (0.0821 L·atm/mol·K * 275 K) = 0.049 moles

To find the number of atoms of O2, we just multiply the number of moles by Avogadro's number which is 6.022x10^23 atoms/mol.

So the number of atoms of O2 in 2.54 L at 2.44 atm and 275 K is:

6.022x10^23 atoms/mol * 0.049 moles = 2.94x10^22 atoms of O2

This is the number of atoms of O2 present in the container.

The reactivity of a chemical is proportional to its atomic size. An experiment that attempts to correlate the size of an atom with its chemical reactivity.

We use chemistry frequently in our daily lives. The food we eat, the air we breathe, and the different cleaning products we use are just a few examples of how one can easily observe this branch of science in different spheres of human life. In fact, it is so prevalent that sometimes even human emotions are the result of chemical reactions within our bodies.

The four primary variables that influence the reaction rate are reactant concentration, the physical state of the reactants, surface area, temperature, and the presence of a catalyst.

Across a period, responsiveness declines as you move from left to right. Higher reactivity results from simpler electron transfer or removal as you move further to the left and down the periodic chart.

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The components of a 44-g tube must be combined with 132 g of something like a polyethylene glycol active substance.

The most popular plastic there in world is polyethylene (PE), which belongs to the significant polyolefin resin family. They are created using ethylene catalytic polymerization [11]. It is a viscoelastic polymer made up of numerous long chains that are combined from ethylene-based monomer units.

The main applications include squeeze bottles, household goods, agricultural mulch, garbage and grocery bags, wire or cable insulator, package film, and trash and retail bags.

44 x 0.02 = 0.88 g

y = no. of g base

5 mg = 5 / 1000

= 1 / 200

0.88 / (y + 44) = 1/200

88 / 100 = (y + 44) / 200

88 = (y + 44) / 2

176 = y + 44

y = 132 g

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The atoms in a Liquid have a definite volume, but move quickly enough to overcome the forces of attraction between them.

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The net ionic equation that occurs when zinc nitrate and lithium phosphate are mixed together in water is 3Zn2+ + 2PO43- ⟶ Zn3(PO4)2(s)

When zinc nitrate and lithium phosphate are combined in water, a precipitate of zinc phosphate is created. It is an insoluble white solid. The compounds that are directly engaged in the chemical reaction are the only ones that are shown in the net ionic equation. Two soluble ionic chemicals are involved in the double replacement reaction.

In an aqueous solution, zinc nitrate, Zn(NO3)2, fully dissociates into zinc cations, Zn2+, and nitrate anions, NO3-.

In an aqueous solution, lithium phosphate (Li3PO4) fully dissociates into lithium cations (Li+) and phosphate anions (PO4)3-.

3Zn2+ + 2PO43- ⟶ Zn3(PO4)2(s)

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The pressure of the gas in the larger vessel when a 500.0 ml sample of gas at a pressure of 70.93 kPa is transferred to a 1050.0 ml vessel at a constant temperature is 33kPa.

Given the volume of sample gas (V1) = 500ml = 0.5L

The pressure of gas (P1) = 70.93kPa

The volume of vessel (V2) = 1050ml = 1.05L

The temperature is kept constant.

Then the pressure of the gas in the larger vessel =P2

We know that from Boyles law PV = nRT

As temperature is kept constant we can say that P1V1 = P2V2

Such that (70.93 x 10^3) x (0.5) = P2 x (1.05)

P2 = 33kPa

Hence the pressure of the gas in the larger vessel is 33kPa.

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The concentration of H+ ions in a 0.010 M aqueous solution of sulfuric acid is equal to 0.010 M.

In aqueous solution, sulfuric acid (H2SO4) ionizes to form hydrogen ions (H+) and sulfate ions (HSO4-). This is a strong acid, and it is almost completely ionized. The Ka1 for H2SO4 is very large, which means that it is essentially 100% ionized.

The HSO4- ion can also dissociate to form H+ and SO4^-2 but the Ka2 is small. So in this case, it can be considered that the concentration of HSO4- is negligible compared to H+ ions concentration.

Therefore, the concentration of H+ ions in a 0.010 M aqueous solution of sulfuric acid is equal to the concentration of sulfuric acid, which is 0.010 M.

It's important to note that sulfuric acid is a strong acid and it is almost completely dissociated in aqueous solution, so the concentration of H+ ions is equal to the initial concentration of sulfuric acid.

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an unknown element is determined to have two naturally occurring isotopes. isotope 1 is 64.11% abundant and has a mass of 68.925580 u, and isotope 2 has a mass of 70.9247005 u, the atomic mass of the unknown element is 69.64 u.

The proportion of a given element's all-natural isotopes is known as its percent abundance. An element's relative abundance is its frequency in the environment as compared to all other elements, expressed as a percentage. The quantity of isotopes and their relative abundances are all that are required to determine an element's atomic weight, as was previously said.

Given that,

isotope 1 is 64.11% abundant (X₁)

isotope 2 percentage abundant is (X₂) = (100 - 64.11) = 35.89

Mass of isotope (M₁) = 68.925580 u

Mass of another isotope (M₂) = 70.9247005 u

atomic mass of the unknown element = (M₁ X₁ + M₂ X₂) / 100%

M = (68.925580 × 64.11) + (70.9247005 × 35.89) / 100%

M = 69.64

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Answer:

54.09

Explanation:

The following substances as an element, a compound, or a mixture.

A) Fluorine = element

B) Boron nitride = compound

C) Iron = element

D) Vinegar = mixture

E) Hydrogen peroxide = compound

The substances as an element , a compound or a mixture is given as :

A) Fluorine = This is an element with the symbol of the F. The atomic number of the Fluorine is 9. The fluorine is place in the halogen groups in the periodic table.

B) Boron nitride = This Boron nitride is a  compound. The boron nitride is the crystalline compound.

C) Iron = This is an element with the atomic symbol of Fe . The atomic number of the iron is 26.

D) Vinegar = This is a mixture of the water and the acetic acid.

E) Hydrogen peroxide = This is the chemical compound. The formula of the hydrogen peroxide is H₂O₂.

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Answer: 4Al + 3O2 -> 2Al2O3

Explanation:

What I did was:

The product has 3 oxygens while the reactant has 2. So if you multiply the reactant by 3 and the product by 2 then the amount of oxygens on both sides will be equal (both sides have 6)

Then since there are now 4 Al on the product sides after multiplying by 2 for the oxygen (2 Al2 = 4 Al), there must be 4 Al on the reactants side.

The average rate of hydrogen fluoride generation, as determined by your response to Part B, is rate = 1.12 10(4) M/s.

corrosive due to the acid's H+ ions and poisonous due to the fluoride ions F-, which can penetrate deeply, chelate calcium and magnesium, and thus upset biological balances due to the destruction of the skin's or an eye's outermost layer.

Hydrofluoric acid, sometimes known as HF, is a weak acid. HF is a powerful corrosive, yet it isn't a strong acid. Since H and F have a very tight link, HF doesn't dissociate very much in water.

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Your answers to Part B led you to the conclusion that the overall return of hydrogen fluoride creation is speed = 1.12 10(4) M/s.

Caustic because of the anticholinergic H+ ions and dangerous because of the fe(iii F-, which may penetrate profoundly, combine calcium and magnesium and alter biological balances by ruining the skin's or even an eye's outer layer.

The acid hydrofluoric acid, sometimes referred to as HF, is weak. Although HF is a potent acidic, it is not a strong acid. HF is does not disintegrate a great deal in water because H and E have an extremely strong bond.

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The sentence which describes one characteristic of nonmetals is nonmetals are brittle and ductile in nature.

Non-metals are those which warrant all the metallic attributes. They're good insulators of heat and electricity. They're substantially feasts and occasionally liquid. Some of also are indeed solid at room temperature like Carbon, Sulphur and phosphorus.

Brittleness describes the property of a material that fractures when subordinated to stress but has a little tendency to distort before rupture. Brittle accoutrements are characterized by little distortion, poor capacity to repel impact and vibration of cargo, high compressive strength, and low tensile strength.

A material's capability to suffer significant plastic distortion under tensile stress before rhapsody is called the ductile parcels of the material. The ductile accoutrements are nickel, etc.

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The chemistry behind monomer liquid and polymer powder nail enhancement is created by combining a chemical known as monomer liquid mixed with polymer powder to form a nail enhancement.

The monomer liquid will be combined with polymer powder to form the sculptured nail. The amount of monomer liquid and polymer powder used to create a bead is called the mix ratio. A mix ratio can be described as dry, medium, or wet. If twice as much liquid as powder is used to create the bead it is called a wet mix. The monomer is a moleculewhich binds to other molecules to form a polymer. This explain the monomer liquid.

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The three naturally occurring amino acids that do not have exactly one chiral centre are Thr, Gly, Ile. Threonine is one of two proteinogenic amino acids with two stereogenic centres, the other being isoleucine, where Gly is the non-essential amino acid glycine is an inhibitory neurotransmitter. Ile refers to isoleucine amino acid.

What is meant by Amino acids?

Amino acids are what proteins are made of. Proteins are made up of lengthy strands of amino acids. Your body contains several different proteins, each of which serves important purposes. A protein's amino acid composition varies from one another. The sequence dictates how the protein will look and work in your body.

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Following is NOT the student's responsibility : schedule a retraining session on materials handling with the safety coordinator.

It is important to notify your instructor of the chemical spills immediately. You should immediately warn everyone that something has been spilled and  never touch, smell or in any other way interact with the chemical before you know what you are dealing with.

If you spill a large amount, make sure you evacuate the lab, and call the emergency personnel. It is important to have spill control and personal protective equipment appropriate for chemicals being handled readily available.

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Note: the question given on portal is incomplete. here is the complete question.

Question: A lab student notified the TA of a SMALL hazardous chemical spill. Under the TA's guidance, the student used the spill kit materials to clean it. Which of the following is NOT the student's responsibility

a) prompt and proper clean-up.

b) to have spill control and personal protective equipment appropriate for the chemicals being handled readily available.

c)schedule a retraining session on materials handling with the safety coordinator.

d)Immediately report the spill to the appropriate emergency response office.

The pressure of air inside the balloon is 203 kPa. This is because the pressure of a gas is directly proportional to its volume.

Directly proportional is a mathematical term used to describe a linear relationship between two variables, where a change in one variable is directly reflected by a proportional change in the other variable. For example, if the number of hours a person works increases, the amount of money they earn will also increase proportionally. This linear relationship is also known as a "direct relationship" or a "direct variation".

Since you have halved the volume of the balloon, the pressure has doubled. The initial pressure of 101.5 kPa multiplied by 2 equals 203 kPa.

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The pressure of a gas inside is sealed bottle if the bottle was cooled to half its original temperature then the pressure would also decrease by half of its original value and the volume remains constant.

The term pressure is defined as an expression of force exerted on a surface per unit area. If we applied force F on area A , then pressure

P = F / A.

The pressure of a gas inside is sealed bottle if the bottle was cooled to half its original temperature then the pressure would also decrease by half of its original value and the volume remains constant.

Thus,  the pressure would also decrease by half of its original value and the volume remains constant.

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Answer:

No

Explanation:

They are also not considered "objects" in the traditional sense, as they cannot exist in a stationary state.

Answer:

Explanation:

To calculate the enthalpy change for the reaction between zinc (Zn) and copper sulfate (CuSO4), we will use the method of calorimetry. This method involves measuring the heat absorbed or released by a reaction and using this information to calculate the enthalpy change of the reaction.

The method for calculating the enthalpy change for this reaction is as follows:

Obtain a calorimeter, such as a bomb calorimeter or a coffee cup calorimeter, and ensure that it is properly insulated to prevent heat loss.

Measure out a known volume of 1 M copper sulfate solution, and carefully add an excess of zinc powder to the solution. Be sure to measure the initial temperature of the solution before the reaction.

Start the reaction by mixing the zinc and copper sulfate together, and monitor the temperature of the solution as the reaction proceeds. Record the final temperature of the solution after the reaction has reached equilibrium.

Use the heat capacity of the calorimeter (Ccal) and the change in temperature (ΔT) to calculate the heat absorbed or released by the reaction. The heat absorbed or released by the reaction can be calculated using the formula: q = Ccal x ΔT

Once you have the heat absorbed or released by the reaction, you can use the molar enthalpy of the reaction (ΔH) to calculate the enthalpy change of the reaction. ΔH = q/ n

where n is the number of moles of Zn that reacted.

Repeat the experiment several times to confirm the results.

It's important to note that to get a precise result, the solution should be well mixed, the reaction should be carried out at constant pressure, and the heat loss should be minimized by using an insulated container.

Also, it's important to check the zinc powder and copper sulfate are not contaminated with other materials that could affect the result.

Emergent characteristics are those traits that develop when smaller pieces come together even though they do not independently possess any of those traits.

Amino acids are the building blocks of proteins. Life's essential building blocks are proteins and amino acids. Byproducts of the breakdown or digestion of proteins are amino acids. The human body uses amino acids to make proteins that help with food dissection. The amino group and carboxyl-acid group of the fundamental structure are referred to as "amino acids." There are 21 amino acids in proteins, and each one has a distinct R group or side chain.

The creation of body protein and other vital nitrogen-containing substances like creatine, peptide hormones, and certain neurotransmitters depends on amino acids. The biological need is for amino acids, even though allowances are portrayed as protein.

Emergent properties are characteristics of a set of things, like atoms, buildings, or insects, that you wouldn't find in any of the parts alone.

Although the amino acids are independent molecules, when they work together to form enzymes, they exhibit qualities that they do not individually. This is a classic illustration of emergent features.

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If the kinetic energy of the reactants was not enough to provide the needed activation energy then:

Reaction products would reform.
The rate of the response would probably quicken.
The products would develop in an energetically unstable condition.
The complex that had been activated would change into products.
A lower energy state would be used to generate the products.

What is the meant by activation energy?
The least amount of energy necessary to bring atoms or molecules into a state where they may undergo chemical transformation or physical transport is known as the activation energy in chemistry. The difference in energy content between atoms or molecules in an activated or transition-state configuration and the same atoms and molecules in their original configuration is known as the activation energy in transition-state theory.

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A neutral atom of the isotope represented by ^79_35 Br contains protons, neutrons, and electrons:

protons=35

neutrons=44

electrons=34

Isotopes are two or more different atom types that have the same atomic number and position in the periodic table but different nucleon numbers due to the number of neutrons in their nuclei. Atoms that have different numbers of neutrons but the same number of protons are called isotopes. Despite having nearly identical chemical properties, their different masses have an impact on their physical characteristics. Atoms that belong to the same element and have the same atomic number Z but a different mass number A are known as isotopes. Carbon-12, carbon-13, and carbon-14 are three isotopes of the element with respective masses of 12, 13, and 14.

Here,

The number of protons = 35

The number of neutrons =79-35=44

The number of electrons = 35-1 =34

The protons, neutrons and electrons are there in a neutral atom of the isotope represented by ^79_35 Br:

protons=35

neutrons=44

electrons=34

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