in a system of n gas molecules, the individual speeds are v1, v2, ..., vn. the rms speed of these molecules is

Answer:

The answer is "Ammonium nitrate is the reactant of this chemical reaction".

Explanation:

The Ammonium nitrate (NH4NO3)  is an ammonium and nitrate ionic crystalline solid. In water and hygroscopic as a strong, it's also highly soluble, although it does not form hydrates.

It uses as a nutrient for generating medications as well as leaven fertilizers and explosive materials. Nitrate in ammonium is sodium bicarbonate ammonium chloride. It is incendiary, an oxidizing agent, and a fertilizer.

The diagrams show the arrangements of carbon atoms in diamond and in graphite. The diamond is sp³ hybridized and have tetrahedral shape while graphite is sp² hybridized and is hexagonal ring shaped structure.

Diamond containing carbon atoms are strongly bonded chemically with other four carbons. The carbon atoms are sp³ hybridized and make percept tetrahedral shape. Diamond used in jewelry makin g. they are used by surgeons in the cataract surgery. diamond is hard, used for cutting or drilling rock.

Graphite containing carbon atom are form the weak bond with weak forces. the carbon are sp² hybridized and make a hexagonal ring shape structure. The force in graphite in weak that makes it useful material.  it is used as lubricant. it is used in pencil. used in making electrodes.

The diagrams show the arrangements of carbon atoms in diamond and in graphite. The diamond is sp³ hybridized and have tetrahedral shape while graphite is sp² hybridized and is hexagonal ring shaped structure.

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Answer: Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test theories

Explanation:

Answer:

Tthe 3-carbon pyruvate molecule made in glycolysis loses a carbon to produce a new, 2-carbon molecule called acetyl CoA. The carbon that is removed takes two oxygens from pyruvate with it, and exits the body as carbon dioxide (CO 2​start subscript, 2, end subscriptt).

Explanation:

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Answer:

Mass = 58.96 g

Explanation:

Given data:

Mass of CH₄ = 21.5 g

Mass of O₂ = 387.5 g

Mass of CO₂ formed = ?

Solution:

Chemical equation:

CH₄ + 2O₂       →   CO₂ +  2H₂O

Number of moles of CH₄:

Number of moles = mass / molar mass

Number of moles = 21.5 g/ 16 g/mol

Number of moles = 1.34 mol

Number of moles of O₂ :

Number of moles = mass / molar mass

Number of moles = 387.5 g/ 32 g/mol

Number of moles = 12.1 mol

now we will compare the moles of CO₂  with O₂  and CH₄.

                       O₂             :          CO₂

                          2             :            1

                          12.1          :          1/2×12.1 = 6.05 mol

                        CH₄          :          CO₂

                           1              :            1

                          1.34           :         1.34

Number of moles of CO₂ produced by  CH₄ are less thus it will limiting reactant.

Mass of  CO₂:

Mass = number of moles × molar mass

Mass =  1.34 mol × 44 g/mol

Mass = 58.96 g

The physical mechanism causing the change in strength when using brine as the pore fluid is the presence of salt ions that weaken the interparticle bonds. Salt can reduce the shear strength of clays by increasing the repulsive forces between clay particles.

The strength of clay types at 50% water content can vary depending on whether DI water or brine is used as the pore fluid. Generally, there is a significant difference in strength between the two.

The presence of salt in brine can have an effect on the shear strength of clays. When salt is dissolved in water, it creates ions that can interact with the clay particles. These interactions can lead to the formation of electrical double layers around the clay particles, which can increase the interparticle repulsion and decrease the shear strength of the clay.

On the other hand, when DI water is used as the pore fluid, there is no presence of salt ions to affect the interparticle interactions. As a result, the clay particles can have stronger bonds and higher shear strength compared to when brine is present.

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The molarity of glucose in blood before eating is  0.00666 M

Molar concentration is the degree of the concentration of a chemical species, especially of a solute in a solution, in phrases of quantity of a substance per unit quantity of answer. In chemistry, the most usually used unit for molarity is the variety of moles in line with liter.

We are given the human blood ranges from about 80 mg/dL before meals to 120 mg/dL after eating.

1 dL = 0.1 L

Mass of glucose before meal = 80 mg = 0.080 g

Mass of glucose after eating = 120 mg = 0.120 g

So, moles of glucose = 0.080 g / 180.16 g/ mol

                                 = 0.000444 moles

Moles of glucose = 0.120 g / 180.16 g/mol

                            = 0.000666 moles

So, molarity of glucose in blood before eating = 0.000444 moles / 0.1 L

                                                                              = 0.00444 M

molarity of glucose in blood after eating = 0.000666 moles / 0.1 L

                                                                  = 0.00666 M

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A property of water is that it requires less heat than ethanol to raise its temperature.

Among the given options, the property of water that stands out is that it requires less heat than ethanol to raise its temperature. This property is known as the high specific heat capacity of water.

Water has a relatively high specific heat capacity compared to many other substances, including ethanol.

This means that it takes a larger amount of heat energy to raise the temperature of water compared to ethanol for the same mass of the substance.

The high specific heat capacity of water is attributed to hydrogen bonding between water molecules.

These hydrogen bonds result in a significant amount of energy being required to break the intermolecular forces and raise the temperature of water. As a result, water can absorb and store a considerable amount of heat energy without undergoing a significant temperature change.

In contrast, ethanol has a lower specific heat capacity, meaning it requires less heat energy to increase its temperature compared to water.

This property of water plays a vital role in regulating Earth's temperature and climate, as water bodies can absorb and release heat energy, helping to moderate temperature changes in the environment.

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Answer:

0.694 cents per second

Explanation:

25x100=2500 cents per hour, 2500/60 = 41.67 per minute and 41.67/60=0.694 cents per second

The reaction between tin (II) oxalate and lithium chloride is that it forms tin (II) chloride and lithium oxalate, which are the products of the reaction. The balanced chemical equation for the reaction is  SnC₂O₄ + 2 LiCl → SnCl₂ + Li₂C₂O4.

Tin (II) oxalate reacts with lithium chloride to form a precipitate of tin (II) chloride and lithium oxalate. The reaction between tin (II) oxalate and lithium chloride is given below.

SnC₂O₄ + 2 LiCl → SnCl₂ + Li₂C₂O4

The balanced chemical equation for the reaction is as follows:

SnC₂O₄ + 2 LiCl → SnCl₂ + Li₂C₂O4 .

SnC₂O₄ is tin (II) oxalate, while LiCl is lithium chloride.

SnCl₂ is tin (II) chloride, while Li₂C₂O4 is lithium oxalate.The products of the reaction between tin (II) oxalate and lithium chloride are tin (II) chloride and lithium oxalate. Tin (II) chloride is a white crystalline powder that is soluble in water, whereas lithium oxalate is a white solid that is insoluble in water.The reaction between tin (II) oxalate and lithium chloride is a double displacement reaction, which is also known as a metathesis reaction. When a double displacement reaction takes place, two compounds exchange their cations and anions, resulting in the formation of two new compounds.

The reaction is a double displacement reaction or metathesis reaction where two compounds exchange their cations and anions to form two new compounds.

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Answer: You would write elements in period 1, 2, 3, and period 4 but you would stop at chromium

Explanation: It would have been too long for me to write every symbol

Answer:

true

Explanation:

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The mileage rate of the car is approximately 52,383.55 meters per deciliter (m/dL) when given the average of 32.5 miles per gallon (mi/gallon).

To convert the mileage rate from miles per gallon (mi/gallon) to meters per deciliter (m/dL) using dimensional analysis, we need to apply conversion factors that relate the given units to the desired units.

Given:

Mileage rate = 32.5 mi/gallon

We can set up the dimensional analysis as follows, using the conversion factors:

32.5 mi/gallon * (1609.34 m/1 mi) * (1 gallon/3.78541 dL)

Let's break down the conversion factors used:

1 mi = 1609.34 m (conversion factor to convert miles to meters)

1 gallon = 3.78541 dL (conversion factor to convert gallons to deciliters)

Now, we can multiply the given mileage rate by the conversion factors:

32.5 mi/gallon * (1609.34 m/1 mi) * (1 gallon/3.78541 dL) = (32.5 * 1609.34) m/dL ≈ 52,383.55 m/dL

Therefore, the mileage rate of the car is approximately 52,383.55 meters per deciliter (m/dL) when given the average of 32.5 miles per gallon (mi/gallon).

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Answer:

The combustion will release -3,321 KJ/mol of energy

Explanation:

What we need to do here is to first calculate the number of moles of methane burnt.

Mathematically, the number of moles of methane burnt = mass of methane/molar mass of methane

Molar mass of methane = 16g /mol

Thus the

number of moles will be ;

59.7/16 = 3.73 moles

Now, 1 mole of methane produces -890 KJ/mol if energy

Then the energy produced by by 3.73 moles of methane would be 3.73 * 890 = -3,320.8125

which is approximately -3,321 KJ/mol

Kindly note that the amount of heat is negative because it is an exothermic reaction

Silver-109 has a mass of 109 amu. It is one of the isotopes of the silver atm.

The term isotopes has to  do with the atoms of the same element that has the same atomic number but different mass numbers. This implies that the isotopes that we have do have the same number of protons but they do not have the same number of neutrons and the fact that they differ in the number of neutrons implies that would have the same chemical property.

We can see from the question that there are two isotopes of silver and tehse isotopes of silver have been identified as silver-107 and silver-109. The isotopes do have the same mass and not the same number of protons.

The percentage abundance of the two isotopes are not the same which means that one is more than the other. We can now see that the mass of the silver 109 in amu is 109 amu.

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The fact that there are more possible combinations for amino acids than the number of amino acids themselves implies that each amino acid can be encoded by multiple codons.

A codon is a sequence of three nucleotides in DNA or RNA that corresponds to a specific amino acid.

There are 20 standard amino acids used to build proteins in living organisms. However, there are 64 possible three-letter combinations of nucleotides (4³) that can be used to form codons. This means that on average, there are more than three codons that can encode each amino acid.

To calculate the number of codons per amino acid on average, we divide the total number of codons (64) by the number of amino acids (20). Therefore, the average number of codons per amino acid is 64/20 = 3.2.

This indicates that there is a degeneracy or redundancy in the genetic code, where multiple codons can specify the same amino acid.

For example, the amino acid leucine is encoded by six different codons (UUA, UUG, CUU, CUC, CUA, CUG), while methionine and tryptophan are each encoded by a single codon.

In conclusion, the existence of more possible combinations for amino acids than amino acids themselves means that the genetic code is degenerate, allowing for redundancy and flexibility in protein synthesis.

This redundancy helps to protect against errors in DNA replication and transcription and allows for evolution to occur through the accumulation of genetic variations.

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Answer:

The north atlantic contains the warmest and saltiest water of the major oceans, the southern ocean is the coldest, the north pacific has the lowest average salinity. This density signature is locked into the water parcel when it sinks

Explanation:

i think

If oxygen and carbon dioxide act as ideal gases, then the volume of carbon dioxide produced is 0.5 L.

To calculate the volume of carbon dioxide produced, we need to write the balanced reaction equation for carbon monoxide combustion:

\(2CO + O_{2}\) → \(2CO_{2}\)

Assuming standard temperature and pressure and that all the gases involved act as ideal gases, 1 mole of gas will have a volume of 22.4 L

22.4 L : 1 mol = 250 mL : X

X = 1 mol * 0.25 L / 22.4 L = 0.0112 mol

Because 1 mol of oxygen produces 2 moles of carbon dioxide, then 0.0112 mol of oxygen produces 2 * 0.0112 mol = 0.0224 mol of carbon dioxide. The volume of carbon dioxide produced is:

0.0224 * 22.4 L = 0.5 L  

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Answer: chromosome

Explanation: :)

Mercury, Venus, and Mars are all rocky planets. None are more or less different than Earth. Earth is the largest and the only planet with extensive regions of liquid water.

Explanation:

Answer:

En nuestro sistema solar, hay cuatro planetas terrestres, que también son los cuatro más cercanos al sol: Mercurio, Venus, Tierra y Marte. Durante la formación del sistema solar, probablemente hubo más planetoides terrestres, pero se fusionaron entre sí o fueron destruidos.

The correct options for A, B, C, D, E and F are true, false, false, false, true and false respectively.

A. True.

According to kinetic molecular theory, lighter gas molecules move with a higher average velocity than heavier gas molecules at a constant temperature.

B. False.

The average kinetic energy of gas molecules at a constant temperature is independent of their mass.

C. False.

A real gas performs at its most optimal when the volume of the container is relatively large and the gas molecules move relatively slowly.

D. False.

The effect of interparticle interactions on the behavior of a gas diminishes as the temperature increases.

I. True.

The number of collisions per unit area increases as more gas molecules are supplied to a container of constant volume and temperature (constant V and T).

F. False.

Kinetic molecular theory states that the pressure remains constant for a constant volume and mole of a gas.

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Your question is incomplete, most probably the complete question is:

Which of the following statements is(are) true? For the false statements, correct them.

a. At constant temperature, the lighter the gas molecules, the faster the average velocity of the gas molecules.

b. At constant temperature, the heavier the gas molecules, the larger the average kinetic energy of the gas molecules.

c. A real gas behaves most ideally when the container volume is relatively large and the gas molecules are moving relatively quickly.

d. As temperature increases, the effect of inter particle interactions on gas behavior is increased.

e. At constant $V$ and $T,$ as gas molecules are added into a container, the number of collisions per unit area increases resulting in a higher pressure.

f. The kinetic molecular theory predicts that pressure is inversely proportional to temperature at constant volume and moles of gas.

The Rf value of any particular site is Rf. It is a distance ratio. In more detail, it's a ratio of one spot's journey distance to another spot's travel distance.

Rf value describes how the mobile phase carried that particular chemical molecule through the stationary phase. A low Rf indicates minimal movement of the compound. A high Rf indicates that the chemical moved rapidly. More importantly, it is challenging to distinguish between two sites with comparable Rf values. It's possible that the spots from the two compounds are just next to one another.

It is ineffective to separate two places with big Rf value differences. It took a long time for one spot to move all the way up the plate.

You may assess the effectiveness and quality of your separation by calculating the Rf values for it. To optimize your separation, you can experiment with various sorbents and solvents to achieve a close enough but not too close difference in Rf values.

You can scale up your separation and effectively purify large quantities of the chemical using your optimized method.

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Answer:

Sn, Sb, Te, Ga, As

Explanation:

Essential amino acids are amino acids that are required for normal body growth and maintenance but cannot be synthesized in the body.

There are nine essential amino acids: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. Amino acids can be obtained from a variety of sources, including animal products like meat, fish, and dairy, as well as plant sources like soybeans, lentils, and quinoa.

Proteins from animal products typically contain all of the essential amino acids, making them "complete" proteins, while plant-based sources may lack one or more essential amino acids and need to be combined with other protein sources to provide a complete amino acid profile.

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Explanation:

The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons. Since the boundary is not a well-defined physical entity, there are various non-equivalent definitions of atomic radius. Three widely used definitions of atomic radius are: Van der Waals radius, ionic radius, and covalent radius

Answer:

The number of protons each element has.

Explanation:

The periodic table is arranged by atomic number, which is the number of protons in the nucleus of each element.

Answer:

The number of protons each element has.

Explanation:

The number of protons each element has is also known as the atomic number. Elements are arranged from left to right and top to bottom in order of increasing atomic number. The order generally coincides with increasing atomic mass. The rows are called periods.

Answer:

phosphorus=38.27%

hydrogen=2.47%

oxygen=59.26%

20,000 is the correct answer

What is empirical formula ?

The empirical formula of a chemical compound is the simplest ratio of the number of atoms of each element present in a compound. It represents the smallest whole number ratio of the elements in a compound and gives an indication of the relative proportions of the elements. The empirical formula is not necessarily the same as the molecular formula, which represents the actual number of atoms in a molecule. The molecular formula may be a multiple of the empirical formula and can be determined by analyzing the compound's molecular weight.

Multiply each by 20,000, then we have

C: 2.48925 x 20,000 = 49,785

H: 3.9901 x 20,000 = 79,802

O: 1.000 x 20,000 = 20,000

Multiply each element by in order to have them all reach the smallest whole number will be 20,000.

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Answer: The answer is 2

Explanation: