How would you record the length of an object?

Answer:

Volume = 190.8

6) Cobalt - [Ar] 3d⁷4s²

7) Silver -[Kr] 4d¹⁰5s¹

8) tellurium - [Kr] 4d¹⁰ 5s² 5p⁴

9) radium - Rn 7s²

10) lawrencium - [Rn] 5f¹⁴ 7s² 7p¹

11) 1s² 2s² 2p⁴ 3s² 3p⁶ 4s² 3d¹⁰4p⁶ 5s¹ - strontium

13) [Kr] 5s² 4d¹⁰ 5p³- antimony atom

14) [Xe] 6s² 4f¹⁴ 5d⁶ - Osmium

15)[Rn] 5f¹⁴ 7s² 7p¹ - Einsteinium

16) 1s² 2s² 2p⁴ 3s² 3p⁶ 4s² 4d¹⁰ 4p⁵ - Bromine

17) 1s² 2s² 2p6 3s² 3d⁵ - Chlorine

18) [Ra]7s²5f⁶ - Einsteinium

19) [Kr] 5s² 4d¹⁰ 5p⁵ - Tellurium

20) [Xe] - Xenon.

The shell number (n) is the first symbol used to represent an electron configuration, followed by the type of orbital and the superscript number of electrons in the orbital. Consider this: The periodic table shows that oxygen has eight electrons.

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A mixture is called a "solution" if the particles are the size of atoms or when one substance dissolves in another.

In chemistry, a solution is a homogeneous mixture of two or more substances, where one substance (called the solute) is dissolved in another substance (called the solvent). Solutions can be formed in any state of matter (solid, liquid, or gas) and are characterized by their concentration, which is the amount of solute present in a given amount of solvent or solution.

The term "solution" specifically refers to a homogeneous mixture, meaning that the components are evenly distributed throughout the mixture and there are no visible boundaries between them. Solutions can be formed between different types of substances, such as solids, liquids, and gases. The process of creating a solution involves dissolving a solute (the substance being dissolved) into a solvent (the substance doing the dissolving). The resulting solution will have unique physical and chemical properties that differ from those of the individual components.

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To calculate the total masses of the products for the given chemical equation, we need to balance the equation first. Balancing the equation means making sure that the number of atoms of each element is the same on both the reactant and product sides of the equation.

The balanced equation for the given reaction is:

2SeO2(g) + O2(g) → 2SeO3(g)

From the balanced equation, we can see that two moles of SeO2 react with one mole of O2 to produce two moles of SeO3. To calculate the total mass of the products, we need to use the molar masses of SeO3 and O2. The molar mass of SeO3 is 143.97 g/mol, and the molar mass of O2 is 32.00 g/mol.

Using the equation, we know that two moles of SeO3 are produced for every one mole of O2. Therefore, the total mass of SeO3 produced can be calculated as follows:

2 mol SeO3 x 143.97 g/mol = 287.94 g SeO3

The total mass of O2 consumed can be calculated as follows:

1 mol O2 x 32.00 g/mol = 32.00 g O2

Therefore, the total mass of the products is 287.94 g SeO3 and 32.00 g O2.

The total mass of the products for the given equation is 287.94 g.

To calculate the total masses of the products for the given equation, we need to first balance the equation:

2SeO2(g) + O2(g) → 2SeO3(g)

Now, we can use the balanced equation to determine the total masses of the products. The molar mass of SeO3 is 143.97 g/mol.

2 moles of SeO3 is produced for every 1 mole of O2 consumed. Therefore, if we know the mass of O2 consumed, we can calculate the mass of SeO3 produced.

Assuming we have 1 mole of SeO2, which has a molar mass of 110.96 g/mol, and we consume 1 mole of O2, which has a molar mass of 32 g/mol, the total mass of the products would be:

2 moles of SeO3 x 143.97 g/mol = 287.94 g

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The expected product is (R)-2-bromobutane.

Stereochemistry plays a crucial role in determining the outcome of chemical reactions. In the given question, the stereochemistry of the intermediate I needs to be considered to determine the expected product.

The intermediate I indicates a chiral carbon center, denoted by an asterisk (*), which means it has four different substituents attached to it. This chiral carbon results in two possible stereoisomers: (R)-2-bromobutane and (S)-2-bromobutane.

When a reaction occurs at a chiral carbon, the stereochemistry of the reactant is usually retained in the product, assuming no racemization or inversion takes place during the reaction. In this case, the intermediate I has an (R) configuration, which implies that the product will also have an (R) configuration.

Therefore, the expected product is (R)-2-bromobutane.

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The statement "molecules move in random directions when heated in a heat engine, and because of the lack of uniformity in the direction of molecular movement" is true.

When a heat engine is heated, molecules absorb heat energy and their kinetic energy increases. The kinetic energy of molecules causes them to move around. However, this movement is not uniform, and the molecules move in random directions.

A heat engine is a device that converts thermal energy into mechanical energy. Heat engines operate on the principle of thermodynamics.

They work by taking in thermal energy from a high-temperature reservoir, converting some of it into mechanical energy, and then releasing the remaining thermal energy to a low-temperature reservoir.The internal combustion engine in a car, the steam engine in an old locomotive, and the turbine in a power plant are all examples of heat engines. They all convert heat energy into mechanical energy to perform work.

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Answer:

Im pretty sure its Cl but that might be wrong

Explanation:

I looked on the web for this one

A 130 kg object weighs approximately, 1274 Newtons on Earth.

The weight of an object on Earth can be calculated using the formula:
Weight = mass × acceleration due to gravity
Weight is calculated by multiplying the mass of an object by the acceleration due to gravity. On Earth, the acceleration due to gravity is approximately 9.8 meters per second squared (9.8 m/s²).

In this case, we have a 130 kg object. To find its weight on Earth, we can use the formula:

Weight = mass × acceleration due to gravity

Weight = 130 kg × 9.8 m/s²

Weight = 1274 Newtons (N)

So, the weight of a 130 kg object on Earth is approximately 1274 Newtons.

Therefore, a 130 kg object weighs approximately, 1274 Newtons on Earth.

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Using the half-life of Am-241, its molar mass and the mass of the sample, we can calculate that it will release 3.57 * 10¹¹ α-particles each second.

If the half-life of Am-241 is 432 years, that means that in 432 years, we will have half of the starting amount, which is:

3.89 g / 2 = 1.945 g

Using the molar mass of Am-241 (241 g/mol), we can calculate the number of moles (n) in 1.945 g:

n = m/M = 1.945 g / 241 g/mol = 8.07 * 10⁻³ mol

Because each mol contains 6.022 * 10²³ particles, over 432 years we will release:

8.07 * 10⁻³ * 6.022 * 10²³ = 4.86 * 10² α-particles

Now we can calculate the number of seconds in 432 years:

432 years * 365.25 days * 24 hours * 60 minutes * 60 seconds = 1.36 * 10¹⁰ seconds

So, each second the sample of Am-241 will release:

4.86 * 10²¹ / 1.36 * 10¹⁰ = 3.57 * 10¹¹ α-particles

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The binding of aspartic acid to the c1 carbon during catalysis is an example of a covalent bond formation or a nucleophilic substitution mechanism. During the reaction, aspartic acid, which is an amino acid, undergoes nucleophilic substitution and forms a covalent bond with the substrate.

This reaction is part of the mechanism by which aspartic acid proteases cleave peptide bonds. Aspartic acid proteases are a type of enzyme that uses aspartic acid as its active site residue. The binding of aspartic acid to the c1 carbon during catalysis is an example of a covalent bond formation or a nucleophilic substitution mechanism. During the reaction, aspartic acid, which is an amino acid, undergoes nucleophilic substitution and forms a covalent bond with the substrate. This reaction is part of the mechanism by which aspartic acid proteases cleave peptide bonds.

Aspartic acid proteases are classified into two types: retroviral and cellular. Retroviral proteases are involved in the maturation of viral particles, while cellular proteases are involved in the degradation of proteins. The best-known example of aspartic acid proteases is HIV-1 protease, which plays a vital role in the life cycle of the human immunodeficiency virus. Because of its importance, HIV-1 protease is a target for antiretroviral drugs.

In conclusion, the binding of aspartic acid to the c1 carbon during catalysis is an example of a covalent bond formation or a nucleophilic substitution mechanism. This reaction is part of the mechanism by which aspartic acid proteases cleave peptide bonds. Aspartic acid proteases are a type of enzyme that uses aspartic acid as its active site residue.

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Beans are processed through 'nibbing'. During the nibbing process, the roasted cocoa beans are crushed and ground into a paste called cocoa mass or cocoa liquor.

This cocoa mass can then be further processed to separate the cocoa solids from the cocoa butter, which is the fat component of the cocoa bean. The separated cocoa solids and cocoa butter are used in the production of chocolate. Pure cocoa mass (cocoa paste) in solid or semi-solid form is known as chocolate liquor. It includes about equal amounts of cocoa butter and solid cocoa, much like the cocoa beans (nibs) from which it is made. It is made from fermented, dried, roasted, and separated from their skins cocoa beans. To make cocoa mass (cocoa paste), the beans are pulverised.

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Answer: The concentration of the resulting solution is 0.025 M

Explanation:

According to the dilution law,

\(M_1V_1=M_2V_2\)

where,

\(M_1\) = molarity of concentrated \(NaOH\) solution = 1.0 M

\(V_1\) = volume of concentrated \(NaOH\) solution = 50 ml

\(M_2\) = molarity of diluted \(NaOH\) solution = ?

\(V_2\) = volume of diluted \(NaOH\) solution = 2.0 L = 2000 ml (1L=1000ml)

Putting in the values we get:

\(1.0\times 50=M_2\times 2000\)

\(M_2=0.025M\)

Therefore, concentration of the resulting solution is 0.025 M

The concentration of the resulting solution if 50. mL of 1.0 M NaOH is diluted with distilled water to a volume of 2.0 L is 0.025M

HOW TO CALCULATE FINAL CONCENTRATION:

C1V1 = C2V2

Where;

According to this question;

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The aggregate ultimate momentum of the boy and girl must be 0 kgm/s (option C).

Conservation of momentum:

According to the principle of momentum conservation, momentum is only modified by the forces acting as they are outlined by Newton's equations of motion; momentum is never generated nor destroyed inside a problem domain.

What is Momentum?

A characteristic of a moving body that it possesses due to its mass and motion and is equal to the sum of its mass and speed.

Therefore, according to the momentum conservation law, it can be concluded that the aggregate end momentum of the boy and girl must be 0 kgm/s (option C).

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Answer:

b)5l x 10kg  c)10kg + 9l   (Not sure for the last 1)

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1. LDFs

2. Intermolecular Forces

3. Intramolecular Forces

4. Linear

5. Tetrahedral

Edit: I'm new to this site and idk how to use it properly. I'm not sure about 2 and 3 currently because these forces are between molecules as well so INTERmolecular would be used twice (?)

Answer:

D: It will increase because smaller particles provide more surface area to react.

Explanation:

When the large iron is broken up into smaller pieces, there are more places for the iron to react (meaning there's more surface area). Think of it like taking the surface area of a big cube compared to the surface area of a bunch of small cubes. The sum of the surface areas of the small cubes will be greater than that of the large cube. As a result, more places for the iron to react will cause for a greater reaction.

Answer: D It will increase because smaller particles provide more surface area to react.

The second quantum number, known as the "angular or orbital quantum number", describes the subshell and gives the magnitude of the orbital angular momentum through the relation. In chemistry and spectroscopy, ℓ = 0 is called an s orbital, ℓ = 1 a p orbital, ℓ = 2 a d orbital, and ℓ = 3 an f orbital.

If you observe the reaction 2NO2(g) ↔ N2O4(g) at equilibrium, it is not possible to determine whether the reaction started with pure NO2 or with pure N2O4 based solely on the observation of the equilibrium state. This is because both NO2 and N2O4 can exist in equilibrium with each other,

The equilibrium constant, Kc, is a constant value at a given temperature and reflects the ratio of products to reactants at equilibrium. However, the equilibrium constant does not provide information about the initial concentrations of the reactants. It only describes the concentrations of the reactants and products at equilibrium.

For example, if the reaction started with pure NO2, the equilibrium state may have a higher concentration of N2O4 compared to NO2, resulting in a larger Kc value. On the other hand, if the reaction started with pure N2O4, the equilibrium state may have a higher concentration of NO2 compared to N2O4, resulting in a smaller Kc value.

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Answer:

Uhm if you're failing the class why are you still using brainly to get answers... Where's your momma boy?

Explanation:

It izzz what it izzz

dsg-d34-2sn

Explanation:

the new verge of 23 us 27b fub co+ sn + sno2

answer: heat needed=18,300

expanation

Comparative investigations involve a wide variety of factors and yield a lot of information. They may nonetheless show connections that do not always denote cause and effect.

When conducting a comparative inquiry, data are gathered on various things, features, or species as well as under various environmental factors, such as the season, temperature, and location.

Benefit – Practical uses are cheap, quick, and easily accessible

Limitation – Difficulty is observed when operationalizing variables

In a comparative investigation, a scientist compares similarities and differences throughout time and under diverse settings to look for trends.

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Answer:

Shifting their growing range towards the equator

Explanation:

Maybe will be like that

Answer:

Ability to store water in leafy structures to prevent excess evaporation.

Explanation:

The reason why plants die in hot temperature is the excess evaporation of water, so to prevent the excess evaporation of water, the plants get adaptive to store water in their leaves.

Hope it helps.

Answer:

i don't understand let us know which one you want us to answer

Answer:

0.0997485824191857

Explanation:

Potassium in 1 mol is 39.0983.

Divide 3.9 by 39.0983.

Answer:

The correct option would be 'electrons

Explanation:

Answer:

I think it will be the answer

2.5 x 10-2 mol

I hope it help you

A chemical compound's mass M is equal to its amount of material, expressed in moles, multiplied by its molar mass.

It is one of the fundamental quantities in physics and the most fundamental property of matter. The quantity of matter in a body is referred to as its mass.

A thing's mass is how much matter it has. Something will weigh more the more matter it contains. For instance, an elephant weighs more than a mouse because it contains more stuff. The amount of matter an item contains is independent of its size.

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