What causes the biggest change mass or speed?

Answer:

Compared with other colorants, carbon black has a high coloring power. Therefore. it is used as ink for printing newspapers, as ink-jet toner, and for other such uses. It is also suitable as a pigment for heat-molded plastics, car fenders, coating for electric wires, and other products.

Explanation: Hope this helps. Branliest if possible. Thx

Answer:

7.92 g/mL.

Explanation:

The following data were obtained from the question:

Mass of Iron = 28.5 g

Volume of water = 45.5 mL

Volume of water + Iron = 49.1 mL.

Density of Iron =.?

Next, we shall determine the volume of the iron. This can be obtained as illustrated below:

Volume of water = 45.5 mL

Volume of water + Iron = 49.1 mL.

Volume of iron =.?

Volume of iron = (Volume of water + Iron) – (volume of water)

Volume of iron = 49.1 – 45.5

Volume of iron = 3.6 mL

Finally, we shall determine the density of iron as follow:

Mass of Iron = 28.5 g

Volume of iron = 3.6 mL

Density of Iron =.?

Density = mass/volume

Density = 28.5/3.6

Density = 7.92 g/mL

Therefore, the density of the iron is 7.92 g/mL

Glucose is polar and carbon tetrachloride is non polar so  it is the incorrect pair.

Water (H₂O) is the most appropriate solvent to dissolve sodium chloride (ionic). This is because sodium chloride is an ionic compound and water is a polar solvent, which means it can dissolve ionic compounds.

Acetone, methanol, ethanol, hexane, diethyl ether, toluene, and carbon tetrachloride are all non-polar solvents and are not suitable for dissolving ionic compounds like sodium chloride.

In fact, some of these solvents, like hexane and toluene, are not even soluble in water. So, to dissolve sodium chloride, it is recommended to use water as a solvent.

However, it's important to note that the solubility of sodium chloride in water decreases as the temperature decreases. At room temperature, approximately 36 grams of sodium chloride can be dissolved in 100 mL of water.

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A total of 12,552 joules of heat energy will be given off when 120 grams of water are cooled from 0°C to -25°C.

The specific heat capacity of water is 4.184 J/g·°C.

To calculate the amount of heat energy released, we can use the formula:Q = mcΔTwhere Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

ΔT = (0 - (-25)) = 25°CQ

= (120 g)(4.184 J/g·°C)(25°C)Q

= 12,552 J

The formula for calculating the amount of heat energy released during the cooling process of water is Q = mcΔT. Here, Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. We are given the mass of water and the initial and final temperatures.

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Answer:

About 21.7 grams.

Explanation:

To find the mass of a sample of sodium chlorate (NaClO₃) given the amount of particles present, we can convert from particles to moles, and moles to mass using its molecular weight.

The molecular weight of sodium chlorate is:

\(\displaystyle \begin{aligned} \mathcal{M}_\text{NaClO$_3$} &= (22.99 + 35.45 + 3(16.00)) \text{ g/mol} \\ \\ & = 106.44\text{ g/mol} \end{aligned}\)

And recall that in one mole of any substance, there are 6.02 × 10²³ of it. Hence:

\(\displaystyle \begin{aligned} 1.23\times 10^{23} \text{ NaClO$_3$} &\cdot \frac{1\text{ mol NaClO$_3$}}{6.02\times 10^{23}\text{ NaClO$_3$}} \cdot \frac{106.44\text{ g NaClO$_3$}}{1\text{ mol NaClO$_3$}} \\ \\ &= 21.7 \text{ g NaClO$_3$} \end{aligned}\)

In conclusion, there are about 21.7 grams of sodium chlorate.

Answer: An atom can be considered unstable in one of two ways. If it picks up or loses an electron, it becomes electrically charged and highly reactive. Such electrically charged atoms are known as ions. Instability can also occur in the nucleus when the number of protons and neutrons is unbalanced.

Explanation:

The heat energy needed to condense 22.25 grams of nitrogen gas at -195.8°C can be calculated as follows: 4390.125 Joules.

Latent heat is the energy released or absorbed by a material during a change of state (phase change) without causing any temperature change. When a gas changes to a liquid state, the process is called condensation. Thus, the given problem is related to the calculation of the heat needed to condense nitrogen gas at -195.8°C.According to the question, Amount of nitrogen gas = 22.25 grams Latent heat of vaporization of nitrogen = 199.0 J/g As we know that latent heat is the energy required for a substance to change its state without a change in temperature.

The energy required to condense 22.25 grams of nitrogen gas can be determined as follows: Heat energy = (Amount of nitrogen gas) × (Latent heat of vaporization of nitrogen)Heat energy = 22.25 g × 199.0 J/g Heat energy = 4390.125 Joules Thus, the heat energy needed to condense 22.25 grams of nitrogen gas at -195.8°C is 4390.125 Joules.

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Answer:

electricity

Explanation:

or maybe food

Answer:

the answer is d slightly less

In any aqueous solution at 25°C, the ionic-product of water (Kw) is a constant value equal to 1.0 x 10⁻¹⁴ mol²/L².

Due to the auto-ionization or self-ionization of water, water molecules dissociate into hydronium ions (H₃O⁺) and hydroxide ions (OH⁻). At 25°C, the Kw is equal to 1.0 x 10⁻¹⁴ mol²/L².

This constant value of Kw plays a crucial role in understanding the acidity and basicity of aqueous solutions. It helps to establish the relationship between the concentrations of hydronium and hydroxide ions, as their product remains constant at a given temperature. The pH and pOH scales are derived from this relationship, providing a convenient method for measuring the acidity or basicity of a solution.

In summary, the ionic-product of water, Kw, remains constant at 1.0 x 10⁻¹⁴ mol²/L² for any aqueous solution at 25°C. This constant is a result of the auto-ionization of water and helps to understand the relationship between hydronium and hydroxide ions in the context of acidity and basicity.

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Answer: all of them

Explanation:

Answer:

The answers X i just took the test

Explanation:

Answer:

catalyst

Explanation:

Answer:

no

Explanation:

no

The kinetic molecular theory of matter explains the physical properties of matter and how they relate to their molecular structures. This theory states that matter is made up of tiny particles, called molecules, that are always in constant motion, even when in a solid state.

The kinetic molecular theory of matter helps in explaining the properties of matter and how it relates to the molecular structures of matter. According to this theory, the particles that make up matter are in constant motion regardless of their state of matter, and their motion is related to the state of matter they exist in. The theory is divided into three main postulates as follows:1. Matter is made up of tiny particles called molecules that are in constant motion, even when in a solid state.2. The movement of these particles increases with an increase in temperature, resulting in an increase in the kinetic energy of the particles.3.

The collisions between these particles and the walls of the container they are in result in the pressure exerted by the gas. The relationship between heat, energy, and temperature as part of the kinetic molecular theory is as follows:Heat is the transfer of energy between different systems, whereas temperature is the measure of the average kinetic energy of the particles in a system. This means that as heat is transferred into a system, the particles in that system will gain kinetic energy, which will lead to an increase in temperature.

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The molecular formula of a compound gives the actual number of atoms of various elements present in a molecule. The empirical formula is KClO₂.

The empirical formula of a compound is defined as the formula which gives the simplest whole number ratio of atoms of various elements present in one molecule of the compound.

Number of moles (n) = Given mass / Molar mass

'n' of 'K' = 5.71 / 39.09 = 0.1460 moles

'n' of 'Cl' = 5.18 / 35.45 = 0.1461 moles

'n' of 'O' = 5.18 / 15.99 = 0.3238 moles

To get simple whole number ratio:

K = 0.1460 / 0.1460 = 1

Cl = 0.1461 / 0.1460 = 1

O = 0.3238 / 0.1460 = 2

Thus the empirical formula is KClO₂.

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The ideal gas law and the gas mass are both used to determine the amount of hydrogen in moles. Learn about the ideal gas law, which is expressed as PV = nRT, where "P" stands for pressure, "V" for volume, "n" for the number of moles of a gas, and "T" for temperature.

The weight of one mole of a sample is known as the molar mass. To determine the molecular mass of a molecule, multiply the subscript (number of atoms) by the atomic mass of each element in the molecule, then add the masses of all the elements in the molecule together.

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Answer:

Sick Core corona +iep =Qurintine

Answer:

The bonding and molecular polarity in a molecule of CI2 is best described as palar / polar

Answer:

C₆H₁₀O₅

Explanation:

In chemistry, we denote any molecule with carbons, hydrogens, and other elements combined together as organic compounds. This is where get get "Organic Chemistry" from.

Wood is going to be an organic compound.

Answer:

C₆H₁₀O₅

Explanation:

Answer:

The answer is A

Explanation:

Fluctuations in the phosphorus cycle in aquatic ecosystems can  lead to changes in the growth rates of aquatic populations.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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Consider a reaction that produces a significant amount of hydrogen ion and is to be carried out a pH 7. The acid would serve as the optimum buffer for this reaction is the acid A.

The pH = 7

The pka value of the acid A = 6.3

The pka value of the acid B = 7.3

The buffer range is given as :

For acid A = (pka + 1 ) to (pka - 1)

The optimal buffer range is the range of the buffer in the dissociation constant of the weak acid to the buffer pka plus or the minus pH unit.

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The life cycle of a star the size of our sun starts with a nebula, a huge cloud of dust and gas. The gravity of the nebula compresses the cloud until the atoms fuse together, creating a star. This stage is known as pre-birth.

Next, the star enters a main sequence phase, where it shines brightly for millions of years, powered by nuclear fusion.

Eventually the star will slowly run out of hydrogen and the fusion process will become less and less efficient. The star will expand and become what is known as a red giant. This marks the end of the main sequence phase.

After this point, the star expels its outer layers, leaving behind a small, hot core called a white dwarf. It will continue to cool down until it becomes a black dwarf.

If the star is at least 5 times bigger than our sun, it will enter a different life cycle. After the red giant phase, the star will undergo a supernova explosion, which will spew dust and gas into the surrounding areas. These remainders will later form new stars, planets, and other cosmic bodies. What's left of the star will become a neutron star or a black hole.

The significance of the Rutherford's experiment lies in its indication that the atom is predominantly empty space.

Rutherford's gold-foil experiment provided a groundbreaking insight into the structure of the atom. By directing alpha particles at a thin gold foil, Rutherford observed that the majority of the particles passed straight through, defying the prevailing understanding of atomic structure at the time.

The experiment challenged the prevailing Thomson model, which portrayed the atom as a uniformly distributed positive "pudding" with embedded electrons. However, Rutherford's observations revealed that the atom must have a different structure.

Based on his findings, Rutherford proposed a new atomic model known as the nuclear model.

According to this model, the atom consists of a small, dense, and positively charged nucleus at the center, containing most of the atom's mass. Electrons orbit around the nucleus in empty space.

The significance of the experiment lies in its indication that the atom is predominantly empty space. The alpha particles passing through the foil with minimal deflection suggested that the nucleus occupies a tiny fraction of the atom's volume, while the majority of the space is devoid of matter.

Rutherford's gold-foil experiment revolutionized the understanding of atomic structure, shaping the foundation for the modern atomic model we use today.

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Answer:

CH3CH2CH2CH3

Explanation:

The boiling point of a compound depends on the nature of intermolecular interaction between the molecules of the compound.

If a molecule is nonpolar and has a low molecular mass, then its molecules are most likely held together only by weak intermolecular bonds such as dispersion forces. These forces are easily broken and the molecules move apart hence the molecule possess a low boiling point.

Polar molecules and molecules having higher molecular mass tend to have higher boiling points.

Among all the compounds listed, CH3CH2CH2CH3 is non polar and has the lowest molecular mass hence it exhibits the least boiling point.

Answer:

Quantum numbers of the outermost electron in potassium:

Explanation:

Refer to the electron configuration of a potassium atom. The outermost electron in a ground-state potassium atom is in the \(4s\) orbital (fourth \(s\) orbital.)

The quantum number \(n\) (the principal quantum number) specifies the main energy shell of an electron. This electron is in the fourth main energy shell (as seen in the number four in the orbital.) Hence, \(n = 4\) for this electron.

The quantum number \(l\) (the angular momentum quantum number) specifies the shape (\(s\), \(p\), \(d\), etc.) of an electron. \(l = 1\) for \(s\!\) orbitals (such as the one that contains this electron.

Quantum numbers \(n\) and \(l\) specify the shape of an orbital. On the other hand, the magnetic quantum number \(m_l\) specifies the orientation of these orbitals in space.

However, \(s\) orbitals are spherical. Regardless of the value of \(n\), the only possible \(m_l\) value for electrons in \(s\!\) orbitals is \(m_l = 0\).

The spin quantum number \(m_s\) distinguishes between the two electrons in an orbital. The two possible values of \(m_s \!\) are \((+1/2)\) and \((-1/2)\). Typically, the first electron in an orbital is assigned an upward (\(\uparrow\)) spin, which corresponds to \(m_s = (+1/2)\).