find the atomicity of water ​

The chlorine atoms can be held together by the dispersion forces.

We know that the chlorine atoms are the atoms that we could say that they have an electronegativity value that is almost the same. As such we can see that the the compound is non polar.

Given the fact that the compound is non polar, the atoms would be held together by a kind of bond that not polar in nature and these are the dispersion forces that hold the non polar molecules together.

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The empirical formula of this compound is CH₂O and the molecular formula is C₈H₁₆O₈.

To determine the empirical formula, we can use the balanced equation for the combustion of this compound: CxHyOz + (x+y/4) O₂ → x CO₂ + (y/2) H₂O. From the mass of CO₂ and H₂O produced, we can use stoichiometry to find the ratio of carbon, hydrogen and oxygen in the compound. Next, we can use the molecular weight of 264 g/mol and the empirical formula we found to determine the molecular formula.

From the mass of CO₂ and H₂O produced, we can use stoichiometry to find the ratio of carbon, hydrogen, and oxygen in the compound.

We can use the moles of CO₂ and H₂O produced to find the moles of the original compound:

We can use the moles of C, H, and O in the compound to find the empirical formula:

To find the molecular formula, we can use the molecular weight of the compound which is 264 g/mol and the empirical formula we found. The molecular weight of CH₂O is 30.03 g/mol. Since 264 g/mol / 30.03 g/mol = 8.78, the molecular formula is (CH₂O)8 which is C₈H₁₆O₈.

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The response is C. 400mL of 5% glucose solution requires 20g of glucose to make.

To prepare 400mL of 5% glucose solution, we need to determine the amount of glucose required.

5% glucose solution means that 5g of glucose is present in 100mL of the solution.

Therefore, for 400mL of the solution, the amount of glucose required can be calculated as:

5g glucose/100mL solution = x g glucose / 400mL solution

x = (5g glucose/100mL solution) x (400mL solution) = 20g glucose

Therefore, the answer is D. 20g of glucose is needed to prepare 400mL of 5% glucose solution.

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Answer:

A. The higher the frequency, the shorter the wavelength

Explanation:

The wavelength calculation formula is given as:

Wavelength, λ = Speed of light (v) ÷ frequency (f)

i.e: λ = \(\frac{v}{f}\) so that wavelength is inversely proportional to the frequency of the wave.

This means shorter wavelength has greater frequency, and vice versa.

I hope this was helpful

The molarity of the solution is 1.0 m

The first step is to convert the mass of KCl to moles:

Number of moles of KCl = 74.5 g / 74.5 g/mol = 1.0 mol

Next, we need to calculate the mass of water in kilograms:

Mass of water = 1000 mL x 1 L/1000 mL x 1 kg/L = 1 kg

Now we can calculate the molality of the solution:

Molality = moles of solute / mass of solvent (in kg)

Molality = 1.0 mol / 1 kg = 1.0 m

Therefore, the molality of the solution is 1.0 m.

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The correct answer to the given question is option A, True. Only block-level elements and non-text inline elements such as images have a width and height that you can specify.

What is HTML? HTML is a mark-up language that is used to create web pages. This language defines the structure and layout of a web page. HTML stands for Hypertext Markup Language. It is used to create the structure and content of a website. It provides a set of tags that web browsers use to display content in a standard format. The tags define the content, images, links, and other elements that appear on the web page. Block-level Elements :Block-level elements are those that start on a new line and take up the entire width of the container.

The following are some of the most frequently used block-level elements: div, h1, h2, h3, h4, h5, h6, p, ol, ul, li, table, form, field set, and blockquote. Non-Text Inline Elements: Non-text inline elements, such as images, are elements that do not contain text and appear within text. The following are examples of inline elements: img, input, button, select, label, and text area. Block-level elements and non-text inline elements, such as images, have a width and height that can be specified. As a result, the given statement "Only block-level elements and non-text inline elements such as images have a width and height that you can specify" is true.

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Answer:

A and D.

Explanation:

A shows that people continued to use more and more fossil fuels until around the middle of the time period where the cost of certain fossil fuels doubled. This helps show that less people were willing to pay this price and would start looking for other means of fuel. This leeads to D.

As people looked for other fuel sources renewable energy uses reached a high in 2012 which was after the cost of certain fuels had doubled.

The pH remains unchanged as silver nitrate is added because the reaction between silver nitrate and lithium hydroxide does not involve the release or consumption of protons (H+ ions).

When silver nitrate (AgNO3) is added to lithium hydroxide (LiOH), a precipitation reaction occurs, forming silver hydroxide (AgOH) and lithium nitrate (LiNO3). The balanced equation for the reaction is:

2AgNO3 + 2LiOH -> Ag2OH + 2LiNO3

Since the Ksp (solubility product constant) of silver hydroxide is given as 2.0 x 10^-8, it indicates that silver hydroxide is only slightly soluble in water. As a result, most of the silver hydroxide formed will precipitate out of solution.

The pH of a solution is determined by the concentration of H+ ions. In this reaction, there is no consumption or production of H+ ions. Lithium hydroxide is a strong base that completely dissociates in water, but it does not affect the pH significantly as the concentration is low (0.10 M). Silver nitrate is a neutral salt, so it also does not contribute to any pH changes.

Therefore, the addition of silver nitrate does not have any significant impact on the pH of the solution. The pH remains unchanged throughout the reaction.

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Answer:

C. Al

Explanation:

2Al+ 3H2SO4(l)------> Al2(SO4)3+ 3H2

Answer:

Neutrons, Atomic Number, Atomic Mass

Explanation:

The Atomic mass is used to calculate the number of Neutrons in an atom.

Every atom is composed of Protons and Neutrons forming a tight compact nucleus orbited by electrons. The Atomic number of an element tells how many Protons the nucleus has. This is important because it determines how many electrons the atom has and consequently, its chemical properties. The Atomic mass (rounded to the nearest whole number) is the sum of the Protons and Neutrons in the elements nucleus, since their masses are nearly identical (Neutrons have one electron worth more mass than Protons). You subtract an element's Atomic number from its Atomic mass and you get the number of neutrons the element has in the nuclei of its atoms.

Answer:

Explanation:

Cu(s) + 2Ag+  ======> Cu^(2+) + Ag(s)

Notice what happened. Silver started out as an ion. It took on 2 electrons that were donated by the copper.

The silver then became a solid ppte. This equation wil take on much more meaning when you take up oxidation and reduction. Until then, you need only know who gave up elections and who took them up.

Answer:

I would guess that a polar air mask would be freezing, high winds type weather. I think that's right.

Answer:

Cool and dry

Explanation:

Exactly what it is on Edge

I know I am late to answer but for the points and for the people that need it

Based on the density of Sterling silver, there are 7.32 × 10^21 atoms of Cu in 1 cm^3 of Sterling silver.

Density is defined as the ratio of mass and densityof the substance.

The density of the sterling silver mixture is calculated with the formula below:

Density of Sterling silver = 7.5% × 8.96 + 92.5% × 10.49

Density of Sterling silver = 10.38 g/cm^3

The mass of the 1 cm^3 is determined with the formula below:

Mass of Sterling silver = 10.38 × 1

Mass of Sterling silver = 10.38 g

Mass of Cu = 0.075 × 10.38

Mass of Cu = 0.7785 g

The number of atoms is then calculated as follows:

I mole of Cu = 64.0 g

64.0 g contains 6.02 × 10^23 atoms of Cu

0.7785 g will contain 0.7785 × 6.02 × 10^23/64

Number of atoms = 7.32 × 10^21 atoms of Cu.

Therefore, there are 7.32 × 10^21 atoms of Cu in 1 cm^3 of Sterling silver.

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Explanation:

Moles of N2 = 84/28 = 3.0mol

Moles of H2 = 29/2 = 14.5mol

Hence amount of ammonia produced = 6.0 * 17 = 102g.

Answer:

They are just two....Ca and OH

Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\\)

From the question

mass = 4.85 kg

volume = 280 cm³

We have

\(density = \frac{4.85}{280} \\ = 0.01732...\)

We have the final answer as

Hope this helps you

Specific heat capacity if the unknown metal is -0.450 J/(g°C).

The measure of heat complexity needed to increase the temperature of a single unit of substance mass by one degree Celsius is known as specific heat capacity. This factor is crucial in determining how much energy is required for temperature changes in a given substance.

q = mcΔT

where q is the change in thermal energy, m is the mass of the metal, c is its specific heat capacity, and ΔT is the change in temperature.

In this case, we have:

m = 150 g

ΔT = 22.4°C - 12.6°C = 9.8°C

q = -662 J

Plugging in the values,

-662 J = (150 g) c (9.8°C)

Solving for c, we get:

c = -662 J / (150 g × 9.8°C) = -0.450 J/(g°C)

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Answer:

all of the above

Explanation:

Answer:

All of the above

Explanation:

Prior to the montreal CFC production ban, all of these products released CFCs into the atmosphere. Some old air conditioner still release CFC so please be sure to dispose of them as CFC kills the ozone layer.

Answer:

Copper+oxygen=copper oxide

In the summer, decreased albedo due to less snow and ice cover leads to more radiation being absorbed by the Earth's surface, which is represented by the narrower outgoing radiation arrow on the left side of the diagram.

Solar radiation is the energy emitted by the sun in the form of electromagnetic waves. It includes a range of wavelengths, from ultraviolet (UV) to visible light to infrared (IR) radiation. Solar radiation is responsible for driving many of the physical and biological processes that occur on Earth. It provides the energy for photosynthesis in plants, powers the water cycle, and drives weather patterns and climate systems. It also influences the Earth's surface temperature and the distribution of heat and energy across the planet.

Here,

The total % reflected by the entire Earth is about 30%, meaning that approximately 30% of the incoming solar radiation is reflected back into space by the Earth's surface, clouds, and atmosphere.

The % absorbed from the sun by the whole Earth is about 70%, meaning that roughly 70% of the incoming solar radiation is absorbed by the Earth's surface, atmosphere, and oceans.

The total % leaving toward space is also approximately 70%, which is the same as the % absorbed from the sun. This is due to the principle of energy balance, which states that the amount of energy absorbed by the Earth must be equal to the amount of energy radiated back into space.

The number that best represents the greenhouse effect is the difference between the total % absorbed by the Earth (70%) and the % leaving toward space (70%), which is 0%. This indicates that the greenhouse effect traps some of the outgoing radiation and prevents it from escaping into space.

To increase the reflected energy, several things could be changed, including increasing the albedo (reflectivity) of the Earth's surface by increasing the amount of snow or ice cover, reducing the amount of clouds in the atmosphere, or reducing the amount of greenhouse gases that absorb and re-emit outgoing radiation. Depending on the specific change, it could lead to cooler temperatures if more radiation is reflected, or warmer temperatures if more radiation is absorbed.

If the percentage of outgoing energy absorbed by clouds, water vapor, and CO2 increased, it would lead to a stronger greenhouse effect and potentially warmer temperatures. This is because these substances absorb and re-emit outgoing radiation, preventing it from escaping into space.

As the seasons change, the diagram above will vary in several ways. In the winter, the amount of solar radiation received by the Northern Hemisphere is reduced, leading to cooler temperatures and less incoming radiation. This is represented by the narrower incoming radiation arrow on the left side of the diagram. In addition, the amount of snow and ice cover in the Northern Hemisphere increases, which increases the albedo and reflects more radiation back into space. This is represented by the wider outgoing radiation arrow on the left side of the diagram. In the summer, the opposite occurs, with more solar radiation received by the Northern Hemisphere, less snow and ice cover, and a narrower outgoing radiation arrow on the left side of the diagram.

Changes to albedo in winter and summer affect specific areas of the diagram above. In the winter, increased albedo due to snow and ice cover in the Northern Hemisphere leads to more radiation being reflected back into space, which is represented by the wider outgoing radiation arrow on the left side of the diagram.

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The statements that are correct is : D) Both (a) Ketones are more sterically hindered and (b) Ketones are less electron deficient due to donation from the two alkyl groups.

The statements that are correctly explain the reason that the ketones are less reactive than aldehydes .

(a) Ketones are the more sterically hindered and

(b) Ketones are less electron deficient due to the donation from the two alkyl groups.

The presence of the two alkyl groups on the both sides of the carbonyl  (C=O) group will sterically hinders the  C atom that will  decreases the rate of the reaction of ketones.

This question is incomplete, the complete question is :

select all the statements that correctly explain why ketones are less reactive than aldehydes.

A) Ketones are more sterically hindered.

B) Ketones are less electron deficient due to donation from the two alkyl groups.

C) The statement is false; Ketones are more reactive than aldehydes.

D) Both (a) Ketones are more sterically hindered and (b) Ketones are less electron deficient due to donation from the two alkyl groups.

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The conformation of globular proteins is determined by a delicate balance of different molecular interactions and entropy effects. There may be more than one answer to this question. The correct answers are:

a. The main driving force opposing the folding of globular proteins is the loss of configurational entropy. When a protein folds, it loses its freedom of movement, which leads to a decrease in its configurational entropy. This decrease in entropy is the main driving force opposing protein folding.
b. A major driving force favoring the folding of many globular proteins is the electrostatic attraction between oppositely charged amino acid groups. This is true for proteins that have charged amino acids on their surface.
c. A major driving force favoring the folding of many globular proteins is the hydrophobic effect (reduction in contact area between non-polar groups and water). This is true for proteins that have non-polar amino acids on their surface.
d. After a protein has folded into a globular structure, the polypeptide chains often form ordered regions due to intramolecular hydrogen bond formation (secondary structure). This is true for many proteins, as hydrogen bonds stabilize the secondary structure.

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Each organ system performs specific functions for the body, and each organ system is typically studied independently. However, the organ systems also work together to help the body maintain homeostasis. For example, the cardiovascular, urinary, and lymphatic systems all help the body control water balance.

According to  Arrhenius equation, the activation energy for a temperature increase from 25°C to 358°C will be 52.4 kJ/mol.

The general rule states that the rate of reaction doubles for a 10° C increase in temperature and this applies only at a certain temperature for a given activation energy .

To establish a connection between the temperature and activation energy for the rule to be valid, we have to ignore any concentration-related temperature variations.

According to the general rule of thumb in organic chemistry, a reaction's pace doubles for every 10° increase in temperature from room temperature. For a given reaction, the ratio of its rate constant at a higher temperature to its rate constant at a lower temperature is known as its temperature coefficient, it is denoted by (Q).

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Answer:

2 moles of nitrogen, 8 moles of hydrogen, 1 mole of sulfur

Explanation: i took the test and got it right

The number of moles for each element in one mole of (NH₄)₂S are:

d. 2 moles of nitrogen, 8 moles of hydrogen, 1 mole of sulfur

The number of moles can be identified by dividing the given mass by molar mass.

In one mole of (NH₄)₂S there are moles of each participating element i.e. nitrogen, oxygen, hydrogen, and sulfur.

In this molecule, there are 2 moles of nitrogen, 8 moles of hydrogen, and one mole of sulfur.

Thus, option d is correct.

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When magnesium bromide is heated it breaks down to bromine and magnesium. The coefficients are 1, 1, and 1, so the ideal answer is (a).

The balanced equation for the decomposition of magnesium bromide is:

MgBr2​→Mg+Br2​.

Magnetism bromide is a chemical compound with the method MgBr2. It is composed of magnesium and bromine atoms, with a ratio of 1:2. It is a white and deliquescent crystalline solid that dissolves in water and alcohol. It is regularly used as a mild sedative and as an anticonvulsant for the treatment of frightened disorders.

It also can be used as a catalyst in a few organic syntheses, together with aldol reactions. It has a magnetic susceptibility of

-72.0 × 10^(-6) cm³/mol

This means that it's miles slightly diamagnetic and repelled by a magnetic field.

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Answer:

true, false

Explanation:

Answer:

28g/mol

2 moles of nitrogen are present

Explanation:

The molar mass is defined as the mass of a chemical when 1 mole of this substance is present and is used to convert mass of the substance to moles or vice versa. Is widely used in stoichiometry problems.

1 atom of nitrogen has a molar mass of 14g/mol. N₂(g) -The molecule that contains 2 atoms of nitrogen- has a molar mass of 28g. That is 28g/mol.

56g of N₂ are:

56g * (1mol / 28g) =