Which of the following is a property of carbon atoms?

They readily give up two electrons to become stable.
They can form covalent bond with other atoms.
They have six valence electrons.
They are chemically inert.

The answer is dipole-dipole and dipole-induced dipole forces.

The dipole-induced dipole is a kind of interaction induced by a polar molecule by disturbing the arrangement of electrons.

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Answer:

28.01

Explanation:

this is the molar mass

The compound is hydrogen peroxide as shown.

A molecular model is a representation of a molecule that is used to better understand its properties, behavior, and interactions. Molecular models can be physical, such as models made from plastic or metal, or they can be virtual, such as computer-generated models.

The purpose of a molecular model is to provide a visual and often interactive representation of a molecule's structure, which can aid in the understanding of its chemical and physical properties, as well as its behavior in different environments or under different conditions.

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Answer:

Heat of combustion- the heat released when one mole of a substance is completely burned. In this case, one mole of oxygen reacts with one mole of methanol to form one mole of carbon dioxide and two moles of water. ... By measuring the temperature change, the heat of combustion can be determined.

Reactivity-  reactivity is the impetus for which a chemical substance undergoes a chemical reaction, either by itself or with other materials, with an overall release of energy

Strength - The strength of an acid is a measure of the degree of ionization in an aqueous solution. The greater the number of ions dissociated, or the number of cations and anions released in solution, the stronger the acid

Solubility- Solubility is the property of a solid, liquid or gaseous chemical substance called solute to dissolve in a solid, liquid or gaseous solvent.

Viscosity-  describes the internal friction of a moving fluid. A fluidwith large viscosity resists motion because its molecular makeup gives it a lot of internal friction.

Explanation:

Answer: 147 mL

Explanation:

Given:

Molarity of the sodium bromide (NaBr) solution (M1)  = 1.75 M

Volume of the solution (V1) = 84 mL

Molarity of the diluted NaBr solution (M2) = 1 M

Using the dilution formula to solve for V2:

\(\begin{gathered}M_{1} V_{1}=M_{2} V_{2} \\V_{2}=(1.75 \mathrm{M} \times 84 \mathrm{~mL}) / 1 \mathrm{M} \\V_{2}=147 \mathrm{~mL}\end{gathered}\)

Therefore, the new volume of the solution is 147 mL

Answer:

3

Explanation:

If the pressure contributed by CH4 is 111.2 atm, the pressure due to NH3 would be 109.1 atm.

To solve the problem, we can use the ideal gas law equation:

PV = nRT

where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is temperature.

We need to find the pressure due to NH3, so let's start by finding the number of moles of each gas:

Now, we can use the pressure contributed by CH4 to find the total pressure:

Ptotal = PCH4 + PNH3

111.2 atm = PCH4 + PNH3

Finally, we can solve for the pressure due to NH3:

Therefore, the pressure due to NH3 is 109.1 atm.

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The amount, in grams, of radon that will be collected in the office sample of air, would be 148.8 grams.

The air sample contains 3.20 x 10⁻⁴ mg of radon per mL of gas. A total air volume of 4.65 x 10⁴ L passed through the office. The amount of radon in the air that passed through the office can be estimated as follow:

Amount of radon per mL of gas = 3.20 x 10⁻⁴ mg

Total volume of air in sample = 4.65 x 10⁴ L

The total air volume needs to be converted to mL:

4.65 x 10⁴ L x 1000 = 4.65 x \(10^7\) mL

1 mL = 3.20 x 10⁻⁴ mg

4.65 x \(10^7\) mL = 4.65 x \(10^7\) x 3.20 x 10⁻⁴

                       = 14.88 x \(10^4\) mg

In other words, the total amount of radon gas in the sample of air is 14.88 x \(10^4\) mg.

1 g = 0.001 mg

14.88 x \(10^4\) mg = 14.88 x \(10^4\)/1000

                        = 148.8 grams

In summary, the total amount of radon gas that will be collected in the office sample would be 148.8 grams.

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Explanation:

Why brunojg driftwood makes colored fire... Burning driftwood, especially from the ocean gets a fire with blue and lavender flames. The colored fire comes from excitation of the metal salts that have soaked I to the wood. While the flames arepretty, the smoke give off of the fire is toxic

Among the bond ratings provided, Baa1 has the highest yield. The bond ratings provided are based on the creditworthiness and risk associated with the issuer.

Generally, higher-yielding bonds indicate higher risk, which is reflected in lower credit ratings. Baa2, Baa3, and BBB all have lower credit ratings compared to Baa1, indicating a higher level of risk and, therefore, potentially higher yields. Key Learnings. Junk bonds, often known as high-yield bonds, are corporate financial securities that provide interest rates above those of investment-grade bonds. Low credit ratings, such as below BBB- from Standard & Poor's and Fitch or below Baa3 from Moody's, are typical of high-yield bonds.

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Answer:

b. mass A → moles A → moles B

Explanation:

hope this helps

To convert from mass of A to moles of B in a stoichiometry problem the steps required is mass A → moles A → moles B.

Relation between moles (n) and mass will be represented by showing the below formula:

n = W/M, where

W = given mass

M = molar mass

So the calculate the moles of B from the stoichiometry of the reaction:

Hence the required steps are mass A → moles A → moles B.

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One displacement reaction is the answer. Single displacement reactions occur when an element in one compound is changed in another. Metal magnesium reacts in the reaction described.

This powdery substance is created when magnesium delivers 2 electrons to oxygen atoms. The reaction here is exothermic. Chemical reactions that release energy on a net basis are referred to as exothermic reactions.

When magnesium and water mix, hydrogen is created along with a large amount of heat. Metallic magnesium responds rather slowly, but mag vapour, which is created when magnesium burns, reacts very quickly because of the elevated temp and effective mixing, and it swiftly generates heat. Water is added to burning magnesium, which causes an explosion.

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Answer:

727.7 torr

Explanation:

Since the gas was collected over water, it is likely to be saturated with water vapour and the total pressure is given as;

Ptotal = Pgas + Pwater

From the question;

Ptotal = 751 torr

Pgas = ?

Pwater = 23.8 torr

Making Pgas subject of equation, we have;

Pgas = Ptotal - Pwater

Pgas = 751 torr - 23.8 torr

Pgas = 727.7 torr

The new pressure of the gas is 692 Pa.

Using the ideal gas law, PV = nRT, where P is pressure, V is volume, n is moles, R is the gas constant, and T is temperature, we can solve for the new pressure.

Initially, we have P1V1 = nRT1, where P1 = unknown, V1 = 1.2 m3, n = 1.3 moles, R = 8.31 J/mol*K, and T1 = 400 K.

During the isochoric process, the volume remains constant, so V2 = V1 = 1.2 m3.

The final temperature is 2T1 = 2400 K = 800 K.

Now we can solve for P2:

P1 = nRT1/V1 = (1.3 mol)(8.31 J/mol*K)(400 K)/(1.2 m3) = 346 Pa

P2 = P1(T2/T1) = (346 Pa)(800 K)/(400 K) = 692 Pa

Therefore, the new pressure of the gas is 692 Pa.

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Answer:

Percent composition = mass of element in the compound/mass of compound × 100

In this case, the mass of the compound is its molar mass.

Percent Composition of N in CO(NH2)2 (urea)

Molar mass CO(NH2)2 = 60.056 g/mol

Mass of N = 2×14.007 g/mol = 28.014 g/mol

%N: 28.014 g/mol/60.056 g/mol × 100 = 46.646%

Percent Composition of N in NH4NO3 (ammonium nitrate)

Molar mass of NH4NO3 = 80.044g/mol

Mass of N = 2×14.007 = 28.014 g/mol

%N: 28.014 g/mol/80.044 g/mol × 100 = 34.998%

Hope this helps, please let me know If I'm wrong.

The longer one goes without drinking water, the more water is reinforcing (and similar liquids). This serves as an example of the reinforcer effectiveness of deprivation.

A liquid is a form of matter that has unique characteristics that make it more rigid than a gas but less stiff than a solid. Like a solid, a liquid can flow and lacks a fixed shape. On the other hand, liquids adopt the shape of the containers they are maintained in.. A liquid is just a fluid. The freedom of movement of molecules in a liquid is far larger than that of a solid. A liquid can flow whereas a solid can't because the forces that hold the molecules together in a solid are only momentary in a liquid.

The two most visible physical properties of a liquid are its ability to retain volume and conform to a shape of its container. When a liquid substance was poured into a container, the liquid condition causes the substance to conform to a shape of a container and stay inside the container.

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The total mass should be 80g since none of the elements were added in excess so the mass of oxygen will be 32 grams

Explanation: Two moles of magnesium reacts with one mole of oxygen gas to form two moles of magnesium oxide. Therefore 2 moles of magnesium = 48 grams. Therefore 2 moles of magnesium oxide = 80 grams. So, 48 grams of magnesium reacts with 32 grams of oxygen to form 80 grams of magnesium oxide.

\(\\ \bull\tt\leadsto Density=\dfrac{Mass}{Volume}\)

\(\\ \bull\tt\leadsto Mass=Density\times Volume\)

\(\\ \bull\leadsto Mass=1.11(355)\)

\(\\ \bull\leadsto Mass=394.05g\)

Answer:

decreases

Explanation:

I'm hope it's correct

When there is an exothermic reaction so here the average kinetic energy of the particles of matter ib the products is option 1. decrease.

In terms of thermochemistry, an exothermic reaction means the reaction where the total standard enthalpy should change so ΔH⚬ is negative. Also it should be release heat.

So based on this, When there is an exothermic reaction so here the average kinetic energy of the particles of matter ib the products is option 1. decrease.

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Answer:

11: 4

12: 3

13: 1

17: 3.000060

18: 5.0 x 10^2

19: 5.0 x 10^6

Explanation:

11: digits between 1&9 are always signifigant even if there are zeros between them

13: Zeros after the decimal do not count unless they represent an exact measurement

18: The decimal point moves forward 2 units so 10^2

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.

To figure out where the fallen out boxes go to in the periodic table wall we need to perform a couple of experiments. The kind of experiment would help you categorize some of the elements is:

C) All of the options are correct.

A) Observing the shininess of the elements can help categorize them based on their luster. Some elements, like metals, tend to be shiny, while non-metals may have a dull appearance. This can give clues about the type of element and its position in the periodic table.

B) Testing the ductility of the elements can provide information about their ability to be stretched or deformed without breaking. Metals, for example, are often ductile, while non-metals tend to be brittle. This characteristic can also help in categorizing elements within the periodic table.

D) Measuring the electrical conductivity of the elements can distinguish between metals, which typically conduct electricity well, and non-metals, which are usually poor conductors. This property is closely related to the arrangement of electrons in the atoms and can aid in placing elements in the appropriate regions of the periodic table.

Therefore, all of these experiments can be useful in categorizing elements and determining their placement in the periodic table.

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The complete question is:

To figure out where the fallen out boxes go to in the periodic table wall we need to perform a couple of experiments. What kind of experiment would help you categorize some of the elements?

A) Observe their shininess

B) Test their ductility

C) All of the options are correct

D) Measure their electrical conductivity

The main reservoirs of the carbon cycle are the atmosphere, oceans, land (including vegetation and soils), and fossil fuels. In these reservoirs, carbon exists in both inorganic and organic forms.

The inorganic carbon cycle involves the exchange of carbon dioxide (CO2) between the atmosphere and oceans through processes like photosynthesis and respiration.

Organic carbon, on the other hand, is found in living organisms, dead organic matter, and soil organic matter. It is cycled through processes such as decomposition and consumption by organisms. The interactions between the inorganic and organic carbon cycles occur primarily in the biosphere, where photosynthesis converts inorganic carbon into organic carbon compounds. While inorganic carbon is primarily in the form of CO2, organic carbon is present in complex organic molecules. Both forms of carbon play crucial roles in energy transfer, nutrient cycling, and climate regulation.

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To determine the empirical formula of an unknown organic compound, we need to use the percent composition data to calculate the molecular formula and then use the molecular formula to find the empirical formula. The empirical formula of the unknown organic compound is C.

First, we can use the molecular formula calculator to determine the molecular formula of the compound based on the percent composition data:

Molecular formula = (Mass of C) / (Molecular weight of C) * Molecular weight of H * Molecular weight of O

where Mass of C = 0.5451 g, Molecular weight of C = 12.01 g/mol, Molecular weight of H = 1.01 g/mol, and Molecular weight of O = 16.00 g/mol.

Molecular formula = (0.5451) / (12.01) * 1.01 * 16.00

Molecular formula = 0.1695

Next, we can use the molecular formula to find the empirical formula by dividing the molecular formula by the smallest whole-number power of the element:

Empirical formula = Molecular formula / (Factor raised to the smallest whole-number power)

Empirical formula = 0.1695 / 1

Empirical formula = C

Therefore, the empirical formula of the unknown organic compound is C.

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The transfer of electrons between alkali metals and halogens results in the formation of a strong ionic bond characterized by the attraction between positively charged alkali metal cations and negatively charged halogen anions.

The transfer of electrons between alkali metals and halogens leads to the formation of an ionic bond. An ionic bond is a type of chemical bond that occurs when there is a complete transfer of one or more electrons from an atom of one element (in this case, the alkali metal) to an atom of another element (the halogen).

Alkali metals, such as sodium (Na) and potassium (K), have one valence electron in their outermost shell, while halogens, such as chlorine (Cl) and iodine (I), require one electron to complete their outermost shell. In the process of bond formation, the alkali metal readily donates its valence electron(s) to the halogen, resulting in the formation of positively charged ions known as cations (e.g., Na+ and K+), and negatively charged ions known as anions (e.g., Cl- and I-).

The resulting electrostatic attraction between the oppositely charged ions leads to the formation of a strong ionic bond. This bond is characterized by the attraction between the positively charged alkali metal cations and the negatively charged halogen anions. Ionic bonds are typically strong and have high melting and boiling points, as well as good solubility in polar solvents.

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Answer:

True!

Explanation:

I took the quiz!

Answer:

true

Explanation:

Answer:

Pull with less force, Add an apple to the basket, and Roughen the surface of the table to increase friction

Explanation:

Electrons subatomic particles surrounding the nucleus of tungsten are responsible for the continuous spectrum observed.

These particles are commonly referred to as subatomic particles since they are the building blocks of atoms. There are protons, neutrons, and electrons, three types of subatomic particles. Protons and electrons, two of the subatomic particles, each have an electrical charge of one or the other.

Two crucial functions for subatomic particles in the construction of matter. They serve as both the universe's fundamental building blocks and the glue that connects them. Although the atoms that play these various jobs belong to two separate categories, they do have some things in common, most notably size.

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Answer:

(40 g O) / (15.99943 g O/mol) x (1 mol CaCO3 / 3 mol O) x (100.0875 g CaCO3/mol) =  

83 g CaCO3

So answer D), although three significant digits are not justified.

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