How many grams are present in 2.5 moles of glucose (C6H12O6)?​

The order of strength of hydrogen bonds, dispersion forces, and dipole-dipole forces is as follows: Hydrogen bonding , Dipole-dipole interactions ,London dispersion forces.

Hydrogen bonding: Hydrogen bonding is the strongest type of intermolecular force. It occurs when a hydrogen atom is covalently bonded to a highly electronegative atom (such as nitrogen, oxygen, or fluorine) and is attracted to another highly electronegative atom in a nearby molecule. An example of a molecule that exhibits hydrogen bonding is water (H2O). Dipole-dipole interactions: Dipole-dipole interactions are slightly weaker than hydrogen bonding, but still stronger than London dispersion forces. They occur between molecules that have permanent dipoles, or regions of partial positive and negative charge. An example of a molecule that exhibits dipole-dipole interactions is acetone (CH3COCH3). London dispersion forces: London dispersion forces are the weakest type of intermolecular force. They are attractive forces that occur between all types of molecules and result from the temporary separation of charge that occurs as a result of the movement of electrons within a molecule. An example of a molecule that exhibits London dispersion forces is hexane (C6H14).

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In order for us to have water to drink, it first needs to go through a process called the water cycle. And in that water cycle there’s a process called evaporation. Evaporation is the process by which water changes from a liquid to a gas. In order for it to rain we need clouds and clouds are made of water.  The water is heated  causing water molecules to convert into gas, that gas then goes through a process called condensation creating clouds. At some point those clouds will be full of water, and all that water will then cause the cloud to release the water molecules causing rain.

The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes.

There are four main parts to the water cycle:

Evaporation, Convection, Precipitation and Collection.

Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapor or steam.

The water vapor or steam leaves the river, lake or ocean and goes into the air.

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Answer: The correct answer is Option A. Compound Y will have the highest boiling point.

Intermolecular forces are the forces that hold the molecules of compounds together. The more the strength of these forces is more will be the force of attraction between them. Hence a compound having stronger intermolecular forces will be hard to break or boil.

So a compound having strong intermolecular force will have a high boiling point as it takes more energy to break apart these molecules.

In the given question compound Y has highest boiling point so it has the maximum intermolecular force between its atoms or molecules.

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Answer:

44.8 grams of O2

Explanation:

The balanced equation tells us that 5 moles of O2 are required for every 1 3 moles of CO2 produced.  This is a molar ratio of (5 moles O2)/(3 moles CO2).

Calculate the moles of CO2 in 37,15 grams of CO2:

The molar mass of CO2 is (12 + 2*16) = 44 grams/mole.

37.15 grams of CO2 is therefore ( 37.15 grams)/(44 grams/mole) = 0.84 mole of CO2.

Now use the molar ratio from above to calculate moles of O2 required:

   (0.84 mole CO2)*[(5 moles O2)/(3 moles CO2)] = 1.4 moles O2

Convert 1.4 moles O2 to grams O2 by multiplying by the molar mass of O2:  (1.4 moles O2)*(32 g/mole O2) = 44.8 grams of O2

Answer: 45.02    

thats what it is. Thats the answer. yep.

MgO > CaO > NaF > KCl are the following compounds with decreasing order of lattice energy.

With the help of the people success platform Lattice, leaders can create motivated, cohesive team that foster winning cultures. Launching 360-degree performance review cycles, engagement polls, tracking OKR/goals, getting real-time feedback, and promoting manager 1-on-1 meetings are all made simple with Lattice.

Any orderly configuration of points and objects over a region or in space, such as the geometric configuration of the atoms within a crystal. Fissionable material is arranged geometrically in a nuclear reactor and is also referred to as a "space lattice."

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Answer:

Explanation:

a i think

Answer:

it would (a)

Explanation:

carcinogen is a substance that gives your tissues a higher chance of getting cancer

Answer:

23percent

Explanation:

correct this or not?

Co oxidises to Co after reducing Ni to Ni (0). (III). Co is a reducing agent,

3Ni2+(aq)+2Co(s)⟶2Co3+(aq)+3Ni(s)

The charge that indicates an object's capacity to gain, lose, or share electrons is known as the oxidation number.

Increasing the number of oxidations is oxidation.

Co is oxidised, changing from Co(0) to Co. (III).

Decrease in oxidation number equals reduction.

Ni (II) is reduced to Ni2+ from Ni2+ (0).

An oxidising agent is something that reduces itself while oxidising others.

Ni2+ reduces itself to Ni after oxidising Co to Co (III) (0). Ni2+ is an oxidising agent, then.

A reducing agent is something that both reduces other things and oxidises itself.

Co oxidises to Co after reducing Ni to Ni (0). (III). Co is a reducing agent, then.

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After reducing Ni to Ni, Co oxidises to Co. (0). (III). Co is a decreasing agent. 3Ni2+(aq)+2Co(s)⟶2Co3+(aq)+3N The oxidation number is the charge  shows an object's ability to receive, lose,  share electrons.

Oxidation is the process of increasing the number of oxidations.Co undergoes oxidation, transforming from Co(0) to Co. Reduction is equal to a decrease in the oxidation number. From Ni2+, Ni (II) is reduced to Ni2+ (0). An oxidising agent is anything that oxidizes others while reducing itself. After oxidizing Co to Co (III), Ni2+ decreases to Ni (0). Ni2+ is therefore an oxidizing agent. A reducing agent is anything that both reduces and oxidizes other substances. After reducing Ni to Ni, Co oxidises to Co. (0). (III). Co is a decreasing agent.After reducing Ni to Ni, Co oxidises to Co. (0). (III). Co is a decreasing agent. 3Ni2+(aq)+2Co(s)⟶2Co3+(aq)+3N The oxidation number is the charge  shows an object's ability to receive, lose,  share electrons.

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The property that is used to calculate the pH of a solution is (A) the hydrogen ion concentration in mol/L.

pH is a measure of the acidity or basicity of a solution. The pH scale ranges from 0 to 14, with 7 being neutral, values below 7 being acidic, and values above 7 being basic.

To calculate the pH of a solution, you need to know the concentration of hydrogen ions (H+) in mol/L (A).

pH is defined as the negative logarithm (base 10) of the hydrogen ion concentration, so the equation for calculating pH is:

pH = -log[H+]

For example, if the hydrogen ion concentration is 1 x 10^-4 mol/L,

the pH would be:

pH = -log(1 x 10^-4)

pH = 4

Note that pH is typically reported, so in this case, the pH would be reported as 4.0.
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When 52.0140 grams is added to 50.71 grams, the result is 102.72 grams.

When adding or subtracting numbers, it is important to consider the number of decimal places or significant figures in each value to determine the appropriate number of decimal places in the result.

In this case, we have 52.014 grams and 50.71 grams. Since the number 50.71 grams has the fewest decimal places (two decimal places), we need to round the result to two decimal places.

Adding 52.0140 grams to 50.71 grams gives us a result of 102.7240 grams. However, since we need to round to two decimal places, the final result is 102.72 grams.

Therefore, reported to the correct number of significant figures, the result when 52.0140 grams is added to 50.71 grams is 102.72 grams.

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Answer:

The mass of is mainly concenttated in

Protons are important because they help keep the nucleus together, they also attract negatively charged electrons and keep them in orbit around the nucleus.

When both parents shared different traits either it will be heterogeneous or homogenous traits,in that case offspring traits neither belongs to parents.However,chances are very that traits of children neither belongs to parents.

Unaffected parents can create impacted offsprings assuming that the two guardians are transporters (heterozygous) for the attribute being followed in the family. Latent traits are normally not communicated in each age. Finally, guys and females are similarly prone to communicate a latently acquired characteristic.

In the event that the latent characteristic is more than prevailing, the recessive traits will really become predominant and the predominant attribute will become recessive.Recessive alleles are meant by a lowercase letter (a versus A). Just people with an aa genotype will communicate a latent characteristic; consequently, posterity should get one passive allele from each parent to display a latent traits.

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The mass of water needed to absorb 456 J is 1.44 g

We'll begin by calculating the change in the temperature of the water.

Initial temperature of water (T₁) = 22.7 °C

Final temperature (T₂) = 98.3 °C

ΔT = T₂ – T₁

ΔT = 98.3 – 22.7

Heat absorbed (Q) = 456 J

Change in temperature (ΔT) = 75.6 °C

Specific heat capacity of water (C) = 4.184 J/gºC

Q = MCΔT

456 = M × 4.184 × 75.6

456 = M × 316.3104

Divide both side by 316.3104

M = 456 / 316.3104

Therefore, the mass of the water is 1.44 g

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When the use of significant figures and rounding up is applied correctly the mass of the mixture will be 80.5 g.

In cases of addition or subtraction, only the last significant figure of every number is taken into account.

In 30.05, this is 5, in the hundredths. When we look at 50.0, the last significant figure is 0, and it is in the tenths. And in 0.4006, the last significant figure is 6, in the ten thousandths. Of these three, the 0 from 50.0 is in the leftmost position, which means that the last significant figure of the result needs to be in the same position (in the tenths).

Moving onto the actual algebraic operation:

30.05 g + 50.0 g + 0.4006 = 80.4506 g

As we established, the last significant figure should be in the tenths, and we will have to round up 4 to 5 (trailing numbers are greater than 0), which means that the resulting mass will be 80.5 g.

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This is true statement. Reason : As s orbitals have a spherical shape, only sigma bonds are possible from bonds formed by s orbitals.

In general, single bonds between atoms are always sigma bonds. Double bonds are comprised of one sigma and one pi bond.

Triple bonds are comprised of one sigma bond and two pi bonds.

A triple bond consists of two pi bonds and one sigma bond.

A double bond contains one sigma and one pi bond. Single bonds are always sigma bonds.

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The melting point of iron is 1538°C (or 2800°F).

This is the temperature at which iron transitions from a solid to a liquid state. Iron is an alloy composed primarily of iron and carbon and is one of the strongest and most abundant metals on Earth. Its melting point is significantly higher than other metals, such as aluminum, which has a melting point of 660°C.The chemical element iron has the atomic number 26 and the symbol Fe. It is a metal that is a member of group 8 and the first transition series of the periodic table. It is by mass the most common element on Earth, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust.

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Carbonic acid (H2CO3) is considered a weak acid, and sulfuric acid (H2SO4) is considered a strong acid.

Acids can be classified as either weak acids or strong acids based on their ability to donate protons (H+ ions) in aqueous solutions.

Carbonic acid (H2CO3) is a weak acid because it only partially dissociates in water, meaning it releases a small fraction of its protons. It forms an equilibrium with its dissociation products, bicarbonate ion (HCO3-) and hydronium ion (H3O+).

The dissociation of carbonic acid is reversible, and the equilibrium lies more towards the undissociated form.

On the other hand, sulfuric acid (H2SO4) is a strong acid as it fully dissociates in water, releasing all of its protons. It completely ionizes into sulfate ion (SO4^2-) and two hydronium ions (H3O+). The dissociation of sulfuric acid is essentially complete, and the equilibrium strongly favors the ionized form.

These differences in dissociation behavior between carbonic acid and sulfuric acid categorize them as weak and strong acids, respectively.

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Answer:

H2 + 3N2 ⇒ 2NH3

Explanation:

Remember when balancing chemical equations you are trying to make sure that each side of the equation has a equal number of atoms, and when one sides number of atoms is odd you need to multiply to get a even number.

H2 + N2 = NH3

N = 1 × 2 = 2

H = 3 × 2 = 6

N = 2 × 1 = 2

H = 3 × 2 = 6

H2 + 3N2 ⇒ 2NH3

Hope this helps.

Answer:

1. Crush the sugar into powder.

2. Heat the water.

3. Dissolve it by stirring continuously

Explanation:

1. Crushing the sugar into powder increases surface area. So it increases the changes of dissolving

2. Heating the water increases the capacity of water to dissolve sugar.

3. Stirring continuously increases randomness of particles so eases mixing up thus increasing dissolving tendency.

Answer: ZnS

Explanation: usually salts of alkali metals are well soluble in water.

Also most nitrates are well soluble.

Sulfides of transition metals are generally insoluble in water

Zinc sulfide is a compound which is insoluble in water as it is a  sulfide salt of transition metal which are water-insoluble.

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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Explanation:

The frequency of 100 MHz is equivalent to a frequency of 100,000,000 Hz (hertz).

Answer: 1 x 10^8 Hz

Explanation:

Using indicators at a certain point in each reaction the solution turned blue, indicating that a pH change had occurred due to increase in the hydroxide ion concentration.

Indicator is defined as a chemical substance which is chemically a weak acid or a weak base which changes it's color depending upon the concentration of hydrogen ions present in the solution.They dissociate slightly in water to produce ions.

These are generally derived from plant pigments and are of slightly acidic or basic in nature.There are three types of indicators:

1) natural indicators

2) synthetic indicators

3) olfactory indicators.

These are mainly used in determination of end point of titrations. Every indicator has it's pH range in which it can perform effectively.These are usually organic compounds.

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Answer:

Evaporation

Explanation:

Students are to mix the solvent to dilute completely,and get and evaporation dish,candle(heat),tripod stand...pour the solution in the evaporation dish and place it on tripod stand above the candle wait for some time the water will change into gas and to get the water they have to cover the evaporating and direct it to a different container to get the water and salt

Answer:

C. Pesticides protect our crops, but some European countries have

linked them to thyroid disorders.

Explanation:

Researches involving human or sometimes animals are subject to critical decision making.

They can easily trespass on the fundamental rights of people and some other issues.

The cell potential (Ecell) of the zinc-air battery at 25.0 degrees Celsius and a partial pressure of oxygen of 0.15 atm is 1.65 V.

To calculate the cell potential (Ecell) of the zinc-air battery at 25.0 degrees Celsius, we can use the Nernst equation, which relates the cell potential to the standard cell potential and the concentrations or pressures of the reactants:

\(E_{\text{cell}} = E^{\circ}_{\text{cell}} - \left(\frac{RT}{nF}\right) \ln(Q)\)

Where:

E°cell is the standard cell potential (given as 1.65 V)

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

T is the temperature in Kelvin (25.0 + 273.15 = 298.15 K)

n is the number of electrons transferred in the balanced cell reaction (2 in this case)

F is Faraday's constant (96485 C/mol)

Q is the reaction quotient

In this case, since we are given the partial pressure of oxygen (O2) in the air diffusing through the cathode (0.15 atm), we can use the partial pressure as a substitute for concentration.

The reaction quotient (Q) can be calculated using the partial pressures of the reactants and products (ZnO):

\(Q = \frac{{(P(\text{ZnO}))^2}}{{P(\text{O}_2)}}\)

Plugging in the values into the Nernst equation, we have:

Ecell = 1.65 V -\(\frac{{8.314 \, \text{J/(mol}\cdot\text{K)}} \times 298.15 \, \text{K}}}{{2 \times 96485 \, \text{C/mol}}} \right) \ln \left( \frac{{(P(\text{ZnO}))^2}}{{P(\text{O}_2)}} \right)\)

Let's calculate the cell potential (Ecell) using the given values:

Ecell = 1.65 V -\({{8.314 \, \text{J/(mol}\cdot\text{K)}} \times 298.15 \, \text{K}}}{{2 \times 96485 \, \text{C/mol}}} \right) \ln \left( \frac{{(0.15 \, \text{atm})^2}}{{0.15 \, \text{atm}}} \right)\)

Simplifying the equation further:

\(E_{\text{cell}} = 1.65 \, \text{V} - (0.0257 \, \text{V}) \ln \left( \frac{{0.15^2}}{{0.15}} \right)\)

Calculating the natural logarithm:

\(E_{\text{cell}} = 1.65 \, \text{V} - (0.0257 \, \text{V}) \ln(1)\)

Since ln(1) is equal to 0:

Ecell = 1.65 V - (0.0257 V) * 0

Ecell = 1.65 V

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