5. Draw the two possible structural formulas for a four-carbon chain that contains one double bond.

Answer: Na+ (8%)

Explanation:

The direction of heat transfer between two samples of carbon depends on their temperature difference, and not solely on their average kinetic energy. While the average kinetic energy of a substance is related to its temperature, it is not the determining factor for the direction of heat transfer.

When two samples of carbon come into contact, a heat transfer will occur between sample A and sample B. The direction of heat transfer is dependent on the temperature difference between the samples. Heat transfer always flows from a hotter object to a cooler object, so if sample A is hotter than sample B, heat will flow from A to B. If sample B is hotter than sample A, heat will flow from B to A.
The average kinetic energy of the molecules in a substance is related to its temperature. The higher the average kinetic energy, the higher the temperature of the substance. However, the average kinetic energy does not determine the direction of heat transfer.
It is possible for a substance with a lower average kinetic energy (and therefore a lower temperature) to transfer heat to a substance with a higher average kinetic energy (and therefore a higher temperature). This can occur if the substance with the lower temperature has a greater heat capacity, which means it can absorb more heat without a significant increase in temperature.

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Answer:

example:

Explanation:

bicuse its true colum

Answer:

1.75 g

Explanation:

as density ×volume =mass

3.5×0.5=mass

mass=1.75 g

plz mark as brainliest if it helps

The mass of the diamond which has a density of 3.5g/cm3 is \(1.75kg\)

\(= ( 3.5*0.5)\)\(= 1.75kg\)

Therefore, the mass is\(1.75kg\)

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Answer:

6F2 ( g ) + 2Ga2O ( aq ) → 4GaF3 + O2

F is more reactive than O, so F displaces O from Ga2O and forms GaF3.

Ga has a valency of 3, it need 3 electrons to get complete electronic configuration.

F has a valency of 1,

3 F atoms constitutes 3 electrons.

So, GaF3.

And hence, the chemical equation is balanced on both sides.

Formaldehyde is a molecule with the chemical formula CH2O. It consists of a central carbon atom bonded to two hydrogen atoms and an oxygen atom, with a double bond between the carbon and oxygen atoms. The relative electronegativity values of the elements involved in formaldehyde are as follows:

• Carbon: 2.55

• Hydrogen: 2.20

• Oxygen: 3.44

Electronegativity is a measure of an atom's ability to attract the electrons towards itself in a covalent bond. In a covalent bond between two different atoms, the electrons are shared between them, but they may not be shared equally. In formaldehyde, the oxygen atom is more electronegative than the carbon atom. Therefore, the oxygen atom attracts the shared electrons in the double bond more strongly towards itself, resulting in a greater electron density around the oxygen atom. This creates a partial negative charge on the oxygen atom and a partial positive charge on the carbon atom. Similarly, the hydrogen atoms in formaldehyde have a lower electronegativity than the carbon atom. Therefore, the electrons in the C-H bonds are shared unequally, with a partial negative charge on the hydrogen atoms and a partial positive charge on the carbon atom.

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Answer: Solubility increases so more solute dissolves

Explanation:

The solubility is a measure of the concentration of the dissolved gas particles in the liquid and is a function of the gas pressure. As you increase the pressure of a gas, the collision frequency increases and thus the solubility goes up, as you decrease the pressure, the solubility goes down.

Answer: C Snow

Explanation:

Because the temperature is low and it is below freezing temperature. Sorry if I am wrong.

The total strain energy can be estimated by adding up the contributions from each type of strain. For the eclipsed conformation of 2,3-dimethylbutane, the total strain energy is approximately 3.8 kcal/mol.

To draw a Newman projection of 2,3-dimethylbutane along the C2-C3 bond, we need to imagine looking along that bond and represent the carbon atom that is closer to us as a point (•) and the carbon atom that is farther away as a circle (o). We then draw the substituents on each carbon as follows:

To calculate the total strain energy of this conformation, we need to consider the various types of strain that are present.

The main sources of strain in this conformation are:

Torsional strain: The eclipsed conformation of the C2-C3 bond creates torsional strain.

The dihedral angle between the two methyl groups is 0°, which means they are eclipsed and experience torsional strain.

Steric strain: The two methyl groups are close to each other and experience some degree of steric strain.

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Answer &

Explanation:

eukaryotic: Having complex cells in which the genetic material is contained within membrane-bound nuclei. cell: The basic unit of a living organism, consisting of a quantity of protoplasm surrounded by a cell membrane, which is able to synthesize proteins and replicate itself.

therefore it is cell

Explanation:

they are closer and made of gas

Not recommended. Remove and wash the spoon. Food must be placed in containers suitable for storage.

Yes, at home, the plate with the spoon on it is wrapped in plastic wrap and put in the refrigerator. The odds of something happening are small. However, contamination can usually cause problems. Taking the spoon out is much more efficient in the long run.

Metal spoons can rust when in contact with water salt and sometimes acid-containing foods. Do not store opened or opened cans in the refrigerator because the can and the iron can dissolve into the food and give it a metallic taste says Buchtmann. This occurs in canned foods with high acidity such as.

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The ∆H of solution of NaOH is 46.8 kJ/mol.

First, we need to calculate the amount of heat absorbed by the solution:

q = m × c × ∆T

where q is the heat absorbed (in Joules), m is the mass of the solution (in grams), c is the specific heat capacity of the solution (in J/(g °C)), and ∆T is the change in temperature (in °C).

In this case, the mass of the solution is the sum of the mass of NaOH and the mass of water:

m = 7.59 g + 80.0 g = 87.59 g

The change in temperature is:

∆T = 48.0 °C - 25.0 °C = 23.0 °C

Substituting the values, we get:

q = 87.59 g × 4.184 J/(g °C) × 23.0 °C = 8,878 J

Next, we need to convert the heat absorbed into the enthalpy change of solution (∆H). The enthalpy change of solution is the heat absorbed per mole of solute. The number of moles of NaOH is:

n = m/M

where M is the molar mass of NaOH, which is 40.00 g/mol.

n = 7.59 g / 40.00 g/mol = 0.1898 mol

Therefore, the enthalpy change of solution is:

∆H = q/n = 8,878 J / 0.1898 mol = 46,780 J/mol = 46.78 kJ/mol

The H of a NaOH solution, rounded to three significant numbers, is 46.8 kJ/mol.

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KCl → k+ + Cl. The ensuing aggregate of ions is identical in each pre-and publish-blend unit of compounds. both comprise Na+, Cl-, okay+, and Br- ions, and no insoluble compounds can result from any mixture of those ions.

The three rules for writing net ionic equations are simply pretty trustworthy. only do not forget to break apart the (aq) substances. best split strong electrolytes.

Delete any ions that seem on both sides of the equation. when an aqueous solution of potassium chloride KCl, while combined with silver nitrate AgNO3 answers insoluble AgCl forms as a white substance. this is an example of a double displacement reaction. due to the fact potassium ion and silver ions displace collectively in the product formation.

The net ionic equation is a chemical equation for a response that lists best those species collaborating inside the reaction. The internet ionic equation is generally utilized in acid-base neutralization reactions, double displacement reactions, and redox reactions.

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Answer:

b) PH3

Explanation:

Answer:

answer is Option A

H202.

At the usual working conditions of 101.5 kPa and 21°C, the chemical oxygen generator system would generate roughly 220.84 litres of oxygen using 500 g of LiClO4.

We may use the ideal gas law and stoichiometry to calculate how many litres of oxygen are created by the chemical oxygen generator system employing 500 g of LiClO4.

We must first determine the moles of LiClO4. LiClO4 has a molar mass of approximately 106.39 g/mol. As a result, 4.704 mol of LiClO4 are produced from 500 g of LiClO4 using the formula: 500 g / 106.39 g/mol

We can see from the chemical equation that 1 mole of LiClO4 results in 2 moles of O2. 4.704 mol of LiClO4 will therefore result in:

2 mol O2 / 1 mol LiClO4 4.704 mol LiClO4 = 9.408 mol O2

The moles of O2 under the specified conditions must then be converted to volume. The ideal gas law, which goes as follows:

PV = nRT

Where:

P = pressure = 101.5 kPa

V = volume (in liters)

n = moles of gas = 9.408 mol

R = ideal gas constant = 8.314 J/(mol·K)

T = temperature = 21°C = 294 K (converted to Kelvin)

Rearranging the equation to solve for V:

V = (nRT) / P

V = (9.408 mol × 8.314 J/(mol·K) × 294 K) / (101.5 kPa × 1000 Pa/kPa)

Simplifying the units:

V = (9.408 × 8.314 × 294) / 101.5

V ≈ 220.84 liters

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The Lewis structure of a molecule is a representation of the valence electrons in the molecule using dots.

The structure of a molecule is easily shown using dots to depict valence electrons and sometimes a dash to indicate two electrons that are shared in a bond.

The structures of PF3, HCN and CF2Cl2 have been shown here.

PF3 has a trigonal bipyramidal molecular geometry. HCN has a linear molecular geometry while CF2Cl2 has a tetrahedral molecular geometry. Note that the molecular geometry shows the number and arrangement of atoms present in the molecule.

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Answer:

N

Explanation:

N can get the clip from 8cm away....the others are less ...so N appears to be the strongest magnet

Aluminum and Sodium Nitrate: No Reaction

Sodium is a chemical element found in nature as a silver-white metal. It is the sixth most abundant element in the Earth's crust, making up around 2.8 percent of the total mass of the crust. It is also one of the most important elements in human diet. Sodium is essential for many biological processes, such as maintaining water balance, transporting nutrients, and regulating nerve impulses. It can be found in many foods, such as table salt, dairy products, seafood, and processed foods. It is also an important component of many medications, such as antacids, diuretics, and blood pressure medications. Without adequate sodium in the diet, people may experience headaches, fatigue, muscle cramps, and other symptoms. Too much sodium in the diet, however, can increase the risk of high blood pressure, stroke, and heart disease.

Aluminum is more reactive than sodium, so a reaction will not occur when they are combined. Aluminum will not react with the sodium nitrate because sodium is not reactive enough to cause a reaction.

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Explanation:

The use of pH indicators in the titration process is useful to determine the end point of the titration, indicating that the entire sample is reacted.

Answer: To show when the reaction has reached or past the equivalence point.

Answer:

0.1443194637888042 moles

Explanation:

Hope This Helps

Have A Great Day

~Zero~

Answer:

Domain

Explanation:

This is because Linnaeus taxonomy is a system of classification which was invented by a swedish Botanist called Carl Linnaeus and it is refered to hierarchy of grouping organisms called taxa. It involve 7 system of classifications and they include Kingdom, Phylum, Class, Order, Family, Genus, and Species.

Answer:

Structure

Explained:

Answer:

d

Explanation:

a p e x :)

Answer: Model B. I have included a graph for this question. Model D is incorrect because that is a model for plasma as liquid doesn't contain ionized particles. Model C is incorrect as that represents a solid. Model A is incorrect because that is showing a gas; the particles are moving very freely

According to the forces of attraction, model B  communicates the kinetic energy and particle arrangement of a liquid.

Forces of attraction is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

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Your question is incomplete  but most probably your full question was, The models show the phases of a substance at various temperatures. Which model BEST communicates the kinetic energy and particle arrangement of a liquid? A. Model D, because it has high kinetic energy so the particles in the model have ionized B. Model B, because it has some kinetic energy and the particles have a free flowing shape C. Model C, because it has high kinetic energy so the particles in the model have no definite shape D. Model A, because it has some kinetic energy and the particles move freely

The vapor pressure at 85.0°C of a solution prepared by dissolving 0.300 mol of liquid dibromoethane the vapor pressure at 85.0°C of a solution prepared by dissolving 0.300 mol of liquid dibromoethane is 164.83 torr.

The term vapor pressure is defined as the tendency of a material to change into the vapour state, and it increases with temperature.

For calculating mole fraction of C₂H₄Br₂ as follows

X C₂H₄Br₂ = moles of C₂H₄Br₂ / moles of C₂H₄Br₂ + moles of C₃H₆Br₂

= 0.3 / 0.3 + 1.80

= 0.14

For calculating mole fraction of C₃H₆Br₂ as follows:

XC₃H₆Br₂ =  moles of C₃H₆Br₂ / moles of C₂H₄Br₂ + moles of C₃H₆Br₂

= 1.80 / 2.1

= 0.85

For calculating total vapor pressure as follows:

P total = [ ( 0.14 × 127) + (0.85 × 173) ]

= 17.78 + 147.05

= 164.83 torr

Thus, The vapor pressure at 85.0°C of a solution prepared by dissolving 0.300 mol of liquid dibromoethane the vapor pressure at 85.0°C of a solution prepared by dissolving 0.300 mol of liquid dibromoethane is 164.83 torr.

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Answer:

D) Refraction

Explanation:

Refraction is when something is bended or when it changes directions, such as light

The light bends or changes direction when it's being refracted. So the correct option is D.

The bending of a light ray when it's passing from one medium to another medium is called refraction. The bending of the ray is due to the differences in density between the two media.

The change in the direction of a wave when it's passing from one medium to another is defined as refraction.  This is one of the most commonly observed phenomena in nature. The working of optical instruments like magnifying glasses, lenses, and prisms is possible due to refraction.

Also, because of the refraction of light, a person can focus light on their retina and is thus able to see. Whenever a light ray travels at an angle into a medium of different refractive indices, it always refracts. This is a change in speed which results in a change in direction.

There are two laws of refraction. They state that:

                                         \(\frac{sin (i)}{ sin (r)} = constant\)

Therefore the correct option is D.

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Answer:

conservation of mass

Answer:Explanation:

250.ml of a 0.400 divide