How does the energy of attraction between particles compare with their energy of motion in a gas and in a solid? As part of your answer, identify two macroscopic properties that differ between a gas and a solid.

Answer:

boron

Explanation:

Boron and aluminum lie in same group in modern periodic table and both have three valence electrons

Answer:

the new concentration is 0.60M

Explanation:

The computation of the new concentration is shown below;

We know that

M1V1=M2V2

(3.0M) (10.0 mL) = M2 (50.0mL)

30 = M2 (50.0mL)

So, M2 = 0.60 M

Hence, the new concentration is 0.60M

The same is considered and relevant

Answer:

Since the Industrial Revolution, human activities have released large amounts of carbon dioxide and other greenhouse gases into the atmosphere, which has changed the earth's climate.

Explanation:

The amount of substance of a system which contains as many elementary entities is called as mole. 2.05 moles are in 1.23 x 1024 atoms of Calcium (Ca).

The term mole is defined as the amount of substance of a system which contains as many elementary entities.The mole is called as containing exactly 6.023 × 10 ²³ elementary unit.

The mole is a convenient unit to use because of the great number of atoms, molecules. It is represented by symbol "mol".

1 mole of calcium = 6.023 × 10 ²³

1 mole ⇒ 6.023 × 10 ²³

X ⇒ 1.23 x 10²⁴

X = 12.3 x 10²³ / 6.023 × 10 ²³

= 2.05 moles

Thus,  2.05 moles are in 1.23 x 1024 atoms of Calcium (Ca).

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The probability that the doors were unlocked when the delivery van arrived is 0.75 or 75%. The delivery van arrives between 3 pm and 5 pm, which is a 2-hour window. The office doors were locked for 20 minutes between 3:15 pm and 3:35 pm, which is a 20-minute period within that 2-hour window.

Therefore, the doors were unlocked for 100 minutes (2 hours - 20 minutes) during the delivery van's potential arrival time. To calculate the probability that the doors were unlocked when the delivery van arrived, we need to determine the proportion of time that the doors were unlocked during the delivery van's arrival window. We can do this by dividing the time that the doors were unlocked by the total time that the delivery van could arrive. 100 minutes / 120 minutes = 0.833.

This means that the doors were unlocked for 83.3% of the time that the delivery van could arrive. However, we need to subtract the 20-minute period when the doors were locked, as the delivery van could not arrive during this time. 100 minutes / 100 minutes = 1, 1 - 20 minutes / 100 minutes = 0.8. This means that the doors were unlocked for 80% of the time that the delivery van could arrive. Therefore, the probability that the doors were unlocked when the delivery van arrived is 0.75 or 75%.

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From the calculation, the binding energy of the oxygen atom is 1.98 * 10^11 J

The term binding energy has to do with the energy that must be supplied to the nucleus of an atom for the nucleus of the atoms to be bonded together.

We must note that;

E = mc^2

E =  2.20 × 10 -28 kg * ( 3 * 10^8m/s)^2 = 1.98 * 10^11 J

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Answer:

1.98 × 10 -11 J

Explanation:

edg

Answer: A. True

Explanation:

Answer:

Explanation:

Answer:

The definition of atom: The Atom is the basic unit of matter.

Types of atoms: There are 3 types of atoms, protons, neutrons, and electrons.

Answer: Phosporus- 1s2 2s2 2p6 3s2 2p3

Ruthenium- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d6

Barium- (Xe)6s2

Thorium- (Rn) 6d2 7s2

In 2CaCO3 there are 3 elements

I hope that helped you! If you have any further questions comment down below or message me! Good luck!

Answer:

We heart you don't have all the information you just got some common substances and their chemical formulas are listed in the chart? That we don't have the chart to see which of the substances are elements

Explanation:

sorry about that if you can take a picture of it and repost it I am sure I could answer it for you

Answer:

0.375 moles Al

Explanation:

To find the moles Al, you need to (1) convert grams AlCl₃ to moles AlCl₃ (via molar mass) and then (2) convert moles AlCl₃ to moles Al (via mole-to-mole ratio from equation coefficients). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to match the sig figs of the given value (50.0 g).

Molar Mass (AlCl₃): 26.982 g/mol + 3(35.453 g/mol)

Molar Mass (AlCl₃): 133.341 g/mol

2 Al(s) + 3 CuCl₂(aq) -----> 3 Cu(s) + 2 AlCl₃(aq)

50.0 g AlCl₃           1 mole                 2 moles Al
--------------------  x  ------------------  x  -----------------------  =  0.375 moles Al
                               133.341 g           2 moles AlCl₃

The spin of the electron is represented by the spin quantum number, ms; ms = +1/2 or -1/2.

Electron in orbital type 2pz.

The primary quantum number, n=1, 2, 3, and n=2 (the second energy level), is one of the four quantum numbers that are assigned to each electron in an atom to define that electron's state.

An atomic orbital's azimuthal quantum number characterizes the form of the orbital and is used to calculate the orbital's angular momentum. When l = 1, the p subshell is defined as l = 0,1...n-1.

The orbital in which the electron is placed is indicated by the magnetic quantum number, ml. ml = -l...+l, and ml = 0 indicates the Pz orbital.

The spin of the electron is represented by the spin quantum number, ms; ms = +1/2 or -1/2.

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When a Lewis acid and a Lewis base combine, the product may be referred to as an adduct.

An adduct is a chemical species that is formed when a Lewis acid and a Lewis base combine through a coordinate covalent bond. In this reaction, the Lewis base donates a pair of electrons to the Lewis acid, which accepts the electrons. This results in the formation of a new molecule, called an adduct, which contains a new covalent bond.

An example of an adduct is the reaction between boron trifluoride (BF3) and ammonia (NH3) to form boron trifluoride ammonia complex (BF3•NH3), which is an adduct.

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Answer:

atomic number

Explanation:

atomic number is the number of protons

The maximum amount of strong base that can be added to the buffer without significantly changing the pH is 0.35 mol.

Sodium carbonate is a white, odorless powder that is commonly used in various applications such as in the manufacture of glass, soaps and detergents, water softening, and as a food additive. It is an ionic compound made up of sodium cations (Na+) and carbonate anions ( 2-). It is also known as washing soda, soda ash, or sal soda.

According to given data, Number of moles of NaH = 0.35 mol. To calculate the initial pH of the buffer, we need to use the Henderson-Hasselbalch equation:

pH = pKa + log([A-]/[HA])

where pKa is the acid dissociation constant of the weak acid in the buffer (in this case, carbonic acid, ), [A-] is the concentration of the conjugate base (in this case, bicarbonate ion, H-), and [HA] is the concentration of the weak acid (in this case, carbonic acid, ).

The pKa of carbonic acid is 6.35, and the concentrations of H- and  can be calculated using the initial amounts of NaH  and Na2and the stoichiometry of the reaction:

[H-] = [NaH] = 0.35 mol / (0.35 mol + 0.50 mol) = 0.411 M

[NaH] - [H-] = 0.35 M - 0.411 M = -0.061 M

substituting these values into the Henderson-Hasselbalch equation, we get:

pH = 6.35 + log(0.411 / (-0.061))

pH = 9.17

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It is possible to form jewelry from rock candy that will look like and last as long as jewelry made from gemstones since the both materials contains a crystalline lattice.

Ionic bonding comprises of units cells of oppositely charged ions that come together to form a crystal lattice. Molecular compounds such as gemstones are also composed of unit cells which also give a well defined crystal lattice.

We must note that the strength of these materials come from the fact that all have a well defined crystal lattice in which particles are well ordered. It is possible to form jewelry from rock candy that will look like and last as long as jewelry made from gemstones since the both materials contains a crystalline lattice.

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Aldehydes that contain at least one alpha hydrogen atom can undergo Aldol condensation and Cannizzaro reaction.

As per the question given,  

In Aldol condensation, two aldehyde or ketone molecules react in the presence of a base to form a beta-hydroxy carbonyl compound. The reaction involves the removal of a water molecule from the alpha-carbon and carbonyl group of two aldehydes or ketones. This reaction produces Aldol, which can undergo dehydration to form an alpha-beta-unsaturated carbonyl compound.

On the other hand, in the Cannizzaro reaction, an aldehyde molecule undergoes self-oxidation and reduction in the presence of a strong base to give an alcohol and a carboxylic acid. The reaction involves the loss of a hydrogen atom from the aldehyde, which gets reduced to an alcohol, and the reduction of the other aldehyde molecule to a carboxylic acid.

Therefore, aldehydes containing at least one alpha hydrogen atom can undergo Aldol condensation and Cannizzaro reaction.

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Answer:

Single atoms of elements are not molecules.

Explanation:

A single oxygen, O, is not a molecule. When oxygen bonds to itself (e.g., O2, O3) or to another element (e.g., carbon dioxide or CO2), molecules are formed

Answer:

Explanation:

Question

If 4.5 moles of H2O are produced how many moles of citric acid were used in this reaction

Answer:

I don't know about the rest but A is heptane

o find out how many liters of blood a 151 lb adult has, we need to convert the weight from pounds to pints, and then from pints to liters. First, we'll convert the weight from pounds to pints. Given that 2 pints = 1 qt, we can set up the proportion:

151 lb * (2 pints / 1 qt) = 151 lb * (2 pints / 1 qt) * (1 qt / 2 pints)

= 151 lb * 1 qt

= 151 qt.

So, the adult has 151 pints of blood.

Next, we'll convert the pints to liters. Given that 1 L = 1.057 qt, we can set up the proportion:

151 pints * (1 L / 1.057 qt) = 151 pints * (1 L / 1.057 qt) * (1.057 qt / 1 L)

= 151 pints * 1 L

= 142.93 L.

Therefore, the adult has approximately 142.93 liters of blood.

A 151 lb adult has approximately 142.93 liters of blood.

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The individual weighing 151 lbs has approximately 4.26 liters of blood

The given information states that an adult weighing 151 lbs has approximately 9.0 pints of blood. To find out how many liters of blood this individual has, we can use the conversion factors provided.

First, we need to convert pints to quarts. Since 2 pints equal 1 quart, we can divide 9.0 pints by 2 to get the equivalent amount in quarts. This gives us 4.5 quarts of blood.

Next, we need to convert quarts to liters. According to the conversion factor given, 1 liter is equal to 1.057 quarts. To find the number of liters, we can divide the number of quarts (4.5) by the conversion factor (1.057). This calculation gives us approximately 4.26 liters of blood.

Therefore, the individual weighing 151 lbs has approximately 4.26 liters of blood.

In summary:
- 151 lbs adult has approximately 9.0 pints of blood.
- Converting 9.0 pints to quarts, we get 4.5 quarts of blood.
- Converting 4.5 quarts to liters, we get approximately 4.26 liters of blood.

So, the individual has approximately 4.26 liters of blood.

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Answer:  C. 6

Explanation:

According to the Law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical reaction for photosynthesis is :

\(C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O+energy\)

Thus the coefficient of water is 6.

There are 0.261 moles of ammonium chloride present in the resulting solution.

To find the number of moles of ammonium chloride in the solution, we need to use the formula:

moles = mass / molar mass

First, let's find the molar mass of ammonium chloride (NH4Cl):
Nitrogen (N) has a molar mass of 14.01 g/mol
Hydrogen (H) has a molar mass of 1.01 g/mol (there are 4 hydrogen atoms in ammonium)
Chlorine (Cl) has a molar mass of 35.45 g/mol

Now, let's calculate the molar mass of ammonium chloride:
Molar mass of ammonium chloride = (14.01 g/mol) + (4 * 1.01 g/mol) + (35.45 g/mol)
= 53.49 g/mol

Next, we'll use the formula to calculate the number of moles of ammonium chloride:
moles = 14.0 g / 53.49 g/mol
= 0.261 moles

Therefore, there are 0.261 moles of ammonium chloride present in the resulting solution.

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The contents of each layer are clearly labeled, with the reaction mixture containing the Nylon-6,10 monomers, the water layer containing the water-soluble initiator, and the oil layer containing the nonpolar solvent and the polymerized Nylon-6,10.  

The identity of each layer is indicated by the labeling of the solutions. The reaction mixture is labeled as layer 1, the water layer is labeled as layer 2, and the oil layer is labeled as layer 3.

An interfacial polymerization experiment to synthesize Nylon-6,10 typically involves the following steps:

Preparation of the reaction mixture: A solution of Nylon-6,10 monomers in a solvent is prepared. The monomers can be mixed in equal proportions or in different proportions to control the molecular weight and properties of the resulting polymer.

Preparation of the water layer: A separate solution of a water-soluble initiator is prepared. The initiator is added to the water, which is then stirred to create a homogeneous solution.

In this experiment, the contents and identity of each layer can be represented as follows:

The reaction mixture: A solution of Nylon-6,10 monomers in a solvent (layer 1)

The water layer: A solution of a water-soluble initiator (layer 2)

The oil layer: A solution of a nonpolar solvent, such as hexane (layer 3)

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The correct answer is that none of the substances listed actually speeds up the absorption of alcohol.

As the rate of alcohol absorption depends on various factors such as the amount of alcohol consumed, the rate of gastric emptying, and the presence of food in the stomach. However, carbonated water and starchy foods may help slow down the absorption of alcohol by delaying the emptying of the stomach, which can result in a slower increase in blood alcohol concentration. Meat products may also help in slowing down the absorption of alcohol due to their high protein content, which can reduce the rate of gastric emptying. Plain water, on the other hand, may actually dilute the alcohol content in the stomach but will not speed up its absorption. It is important to note that while these substances may help to delay the absorption of alcohol, they do not reduce its effects on the body or prevent intoxication. The only effective way to reduce the effects of alcohol is to consume it in moderation or to avoid it altogether. It is also important to never drink and drive, and to seek medical attention if one experiences severe symptoms of alcohol consumption.

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The volume occupied by a 21.8 g sample of osmium is approximately \(0.964 cm^3\).

The volume (in \(cm^3\)) occupied by a 21.8 g sample of osmium can be calculated using its density of \(22.6 g/cm^3\).

To find the volume, we can use the formula:

Volume = Mass / Density.

Plugging in the values, we have:

Volume = 21.8 g / \(22.6 g/cm^3\)

Now, dividing 21.8 g by \(22.6 g/cm^3\) gives us the volume in cm^3.

Calculating this, we get:

Volume = \(0.964 cm^3\)

So, a 21.8 g sample of osmium would occupy a volume of approximately \(0.964 cm^3\)

In conclusion, the volume occupied by a 21.8 g sample of osmium is approximately \(0.964 cm^3\)

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The pH in the intermembrane space of the mitochondria should be lower compared to the matrix due to the C. higher concentration of protons in the intermembrane space.

Mitochondria are organelles found in eukaryotic cells that play a vital role in producing the energy required to sustain cellular activity. Mitochondria produce energy from food and oxygen, which they use to generate ATP, the primary source of cellular energy.

The intermembrane space (IMS) is the region between the mitochondrial inner and outer membranes. The pH of the intermembrane space is significantly lower than that of the matrix due to the higher concentration of protons in the intermembrane space.

The pH gradient of the mitochondria enables the generation of ATP from ADP and Pi by ATP synthase, which pumps protons from the intermembrane space to the matrix, making the pH gradient a source of energy. The proton gradient generated by ATP synthase is used for ATP synthesis. Therefore, the pH in the intermembrane space of mitochondria should be lower compared to the matrix due to the higher concentration of protons in the intermembrane space.

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Answer:

In the elemental form, non-metals can be gas, liquid or solid. They aren't shiny (lustrous) and they don't conduct heat or electricity well. Usually their melting points are lower than for metals, although there are exceptions. The solids usually break easily, and can't bend like metals

Explanation: