The bowling ball weighs 3.6 kg and the bowling pin weighs 1.36 kg. If the mass of the bowling ball is increased to 7.2 kg and the bowling pin is increased to 2.7 kg, what is the effect on the force between them? Group of answer choices

Answer:

308.049 g/mol

Explanation:

Given:

Ni(ClO₃)₃

Computation:

Mass of nickel (Ni) = 58.69 g/mol

Molar mass of Cl = 35.453 g/mol

Molar mass of Cl = 16 g/mol

so,

58.69 + 3[35.453+3(16)]

58.69 + 3[35.453+48]

308.049 g/mol

Answer:

Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.

Explanation:

Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.

When the North Pole of one bar magnet is near the South Pole of another bar magnet, they will attract each other. So, the correct option is C, attraction. This is because opposite magnetic poles attract each other, while like magnetic poles repel each other.

A magnetic field is a region in space where a magnetic force can be detected. It is created by the movement of charged particles, such as electrons, protons, and ions. A magnetic field can be produced by a magnet, an electric current, or a changing electric field.

When the North Pole of one bar magnet is near the South Pole of another bar magnet, they will attract each other. This is because the magnetic field lines of the two magnets interact in such a way that they try to align with each other. Since opposite magnetic poles attract each other, the North Pole of one magnet will be attracted to the South Pole of the other magnet.

The magnetic force between the two magnets depends on the strength of the magnetic field and the distance between the magnets. The closer the magnets are, the stronger the magnetic force will be.

Therefore option C, attraction is correct.

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The overall objective of adsorption is to utilize the properties of adsorbents and adsorbates to achieve desired outcomes, such as purification, separation, catalysis, or storage, by exploiting the interactions occurring at the adsorbent-adsorbate interface.

Example of Chemical Adsorption:

Adsorption of hydrogen on a metal catalyst surface during hydrogenation reactions.

Adsorption of gas molecules on the surface of a solid metal oxide catalyst during oxidation reactions.

Adsorption of pollutants on activated carbon in water or air purification systems.

Adsorption of dyes on the surface of a solid support in dye-sensitized solar cells.

Adsorption of toxins or drugs on activated charcoal for detoxification or medical purposes.

Example of Physical Adsorption:

Adsorption of nitrogen gas on the surface of activated carbon in gas storage applications.

Adsorption of water molecules on the surface of silica gel in humidity control systems.

Adsorption of volatile organic compounds (VOCs) on zeolite materials for odor control.

Adsorption of gases on the surface of metal-organic frameworks (MOFs) for gas separation processes.

Adsorption of solutes on the surface of silica particles in liquid chromatography for separation and purification purposes.

The objective of adsorption can vary depending on the application, but some common objectives include:

Removal of pollutants or contaminants from air, water, or other environments.

Separation and purification of specific components from a mixture.

Adsorption of gases for storage or transportation purposes.

Catalytic reactions where adsorbed species react on the surface of a catalyst.

Surface modification or functionalization of materials for specific applications.

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Water combines with carbon dioxide to produce slightly acidic groundwater

that dissolves limestone and forms caves.

This is because the reaction between water and carbondioxide to form

bicarbonate ions( HCO₃⁻). The bicarbonate ions dissociate into Hydrogen

atoms thereby increasing the acidity.

The acidic environment results in the formation of acidic groundwater that

dissolves limestone and forms caves.

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Answer:

c

Explanation: The physical properties because they don't have the same number of protons or the number of neutrons but they do have the physical properties i have had this question before

Western Europe has made significant progress in reducing air pollution through practices such as monitoring emissions, using catalytic converters, developing cleaner-burning fuels, improving engine efficiency, and adopting agricultural intensification strategies. Options A,B,C ,D and E are correct.

In Western Europe, several practices have been implemented to reduce air pollution and improve air quality. One significant measure is the monitoring of emissions from various sources, including industrial facilities, vehicles, and power plants. This monitoring allows for the identification of pollution hotspots and the implementation of targeted measures to reduce emissions.

Another effective practice is the widespread use of catalytic converters in vehicles. These devices help in converting harmful pollutants emitted from vehicle exhaust, such as nitrogen oxides (NOx), carbon monoxide (CO), and volatile organic compounds (VOCs), into less harmful substances. The mandatory use of catalytic converters has significantly reduced emissions from automobiles and contributed to improved air quality.

The development of cleaner-burning fuels has also played a crucial role in reducing air pollution. Western European countries have adopted stricter fuel quality standards, which have led to the production and use of low-sulfur fuels. Low-sulfur fuels help in reducing emissions of sulfur dioxide (SO2) and particulate matter (PM), both of which contribute to air pollution and respiratory problems.

Improving the efficiency of engines, particularly in the transportation sector, has been another effective approach. More efficient engines consume less fuel, resulting in reduced emissions. This has been achieved through the introduction of stricter fuel efficiency standards for vehicles, promoting the use of hybrid and electric vehicles, and encouraging the adoption of public transportation systems.

Additionally, Western Europe has implemented agricultural intensification strategies that aim to reduce air pollution from farming practices. These strategies include the use of precision farming techniques, such as optimized fertilizer application, reducing pesticide use, and better waste management. By implementing these practices, the release of agricultural pollutants, such as ammonia (NH3) and volatile organic compounds (VOCs), has been significantly reduced.

These efforts have led to improved air quality and the protection of public health and the environment. (Options A,B,C, D and E are correct.)

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The moles of ammonia present in a 2.860 g sample of ammonia has a molar mass of 17.030 g/mol. Then, the Number of Moles is 0.2 moles.

Ammonia :

Ammonia is an inorganic compound of nitrogen and hydrogen with the chemical formula NH3. A stable binary hydride and the simplest source of hydrogenation, ammonia is a colorless gas with a distinct, pungent odor. Biologically, it is a common nitrogen waste, especially among aquatic organisms, and contributes significantly to the nutrient needs of terrestrial organisms, serving as a precursor to 45% of the world's food and fertilizers.

Molar Mass:

In chemistry, the molar mass (M) of a compound is defined as the ratio between the mass of a sample of that compound and the amount of the substance (measured in moles). Molar mass is a volumetric, not molecular, property of a substance. Molar mass is the average of many instances of a compound that often differ in mass due to the presence of isotopes. Most commonly, molar mass is calculated from standard atomic weights, so it is global average and is a function of the relative isotopic abundance of Earth's constituent atoms. Molar mass is suitable for converting the mass of a substance and the amount of a substance into a mass quantity.

Now,

Given:

Weight in grams, w = 2.860 g

Molar mass, m = 17.030 g/mol

We know,

Number of Moles = Weight(w) / Mole Mass (m)

    ⇒                    n   =  2.860/ 17.030

 By substituting the values,

    ⇒                    n   = 0.1679

                         ≈ n   = 0.2 moles.            

Thus, the response above is right.

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Answer:

1 mole is equal to 6.022x10²³

Answer:

2.979 mol

Explanation:

mass of NaF=14+19

                    =33g

33g of NaF is the mass of 1 mol

98.3g of NaF is the mass of (98.3/33)*1=2.979 mol

Answer:

The forces acting on the book are balanced by each other.

Answer:

Noble gasses

Explanation:

nobled gasses

all elements want to loose or gain electrons to be like the noble gasses in bonding but the noble gasses do not bond.

The stage in star life cycle  in which hydrogen is the primary fuel for nuclear fusion is Main sequence.

The same natural cycles that apply to living things also apply to stars. This cycle starts with birth, develops over the course of a lifespan marked by change and growth, and culminates in death. The life cycle of a star, which lasts for billions of years, is completely different from the life cycle of a living thing.

When the core temperature reaches the necessary level, fusion can start during the main sequence phase of development. The hydrogen protons undergo this transformation into helium atoms. An enormous quantity of energy is released from the core of a main-sequence star as a result of this exothermic reaction, which produces more heat than it consumes.

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Answer: The two categories is porous evidence and nonporous evidence. Nonporous item of evidence is when you put the latent print on the surface and it just sits on the surface. Porous item of evidence is when you put the latent print on the surface and it absorbs the latent print deposit.

Answer:

\(C_{9.042}H_{17.958}\)

Explanation:

(This exercise has been written in Spanish and for that reason explanation will be held in such language)

Por la definición del Número de Avogadro, un mol del compuesto contiene \(6.022 \times 10^{23}\) moléculas. La masa de un mol se determina mediante regla de tres simple:

\(x = \frac{6.022\times 10^{23}\,molecules}{1\,molecule} \times (2.1\times 10^{-22}\,g)\)

\(x = 126.462\,g\)

Las participaciones másicas del carbono y el hidrógeno son, respectivamente:

\(m_{C} = 0.858\cdot (126.462\,g)\)

\(m_{C} = 108.504\,g\)

\(m_{H} = 126.462\,g - 108.504\,g\)

\(m_{H} = 17.958\,g\)

Ahora, el número de moles de cada elemento es calculado a continuación:

\(n_{C} = \frac{108.504\,g}{12\,\frac{g}{mol} }\)

\(n_{C} = 9.042\,mol\)

\(n_{H} = \frac{17.958\,g}{1\,\frac{g}{mol} }\)

\(n_{H} = 17.958\,mol\)

La fórmula molecular del hidrocarburo es:

\(C_{9.042}H_{17.958}\)

We need the structure (Refer to the attachment)

Scandium nitrate are Sc(NO3)3 ionic compound.

Using Type III binary compound criteria, compounds that only contain non-metal components are called. In contrast to ions, which have charges, these molecules are always neutral and only include two elements (for compounds that contain only non-metal elements but more than two elements, see the acid naming section below).

The ionic compound sodium chloride, on the other hand, includes ions. Ionic compounds are made of ions and are held together by the attraction interactions between the ions with opposing charges. The most popular ionic substance is table salt (sodium chloride).

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The statement which accounts for the change in potential energy going from Point B to Point A is that as the atoms get closer together, the attraction of the nucleus of each atom for the electron(s) of the other gets stronger and stronger and is denoted as option B.

This is referred to as the energy possessed by a body by virtue of its position.

The change in the potential energy is as a result of the atoms getting closer which leads to the attraction of the nucleus of the electron of the other getting stronger.

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Answer:

distance/time is the answer

Answer:

Of course the answer is gold

Explanation:

Gold is used for making jewellery and not aluminium,iron or copper

Answer:

copper or gold.

Explanation:

Copper is also a good material for accessories. Even in the ancient times, those who can’t afford gold jewelry wear copper jewelry instead. It offers design flexibility too due to its high ductility.

The number of moles of charge contributed to a solution by one mole of dissolved ions is called the Faraday constant (F). It represents the charge of one mole of electrons and is essential in electrochemical calculations involving charge transfer and electrolysis.

In a solution, when one mole of ions dissolves, each ion can carry a certain charge.  For example, if a particular ion carries a charge of +1, then one mole of that ion would contribute +1 Faraday of charge to the solution. The Faraday constant is crucial in various electrochemical calculations, such as determining the amount of charge transferred during an electrochemical reaction or calculating the amount of substance produced or consumed in an electrolysis process.

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3H₂O is formula for 4 molecules of water

There are two types of covalent compound and ionic in chemistry, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Chemical formula that shows 3 molecules of water is 3 H₂O.

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

The chemical formula of water is H₂O. where the stoichiometry, which is written in front of the molecule is 1, represents the number of molecule of water. The number that is written on the foot of H is called number of atoms. To show 3 molecules of water, the chemical formula will be 3 H₂O.

Therefore,  chemical formula that shows 3 molecules of water is 3 H₂O.

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In Tollen's test, the reaction of aldehydes with silver(i) ions in basic solution results in the formation of silver metal and carboxylate.

Specifically, the reaction involves the oxidation of the aldehyde and the reduction of the silver(i) ion. This can be seen in the reaction of 2 silver 1 ions with a generic aldehyde and 3 hydroxide ions, which produces 2 silver atoms, a generic carboxylate, and 2 water molecules. The species being oxidized in the reaction is the aldehyde, while the species being reduced is the silver(i) ion. The visual indicator of a positive test is the formation of silver metal, which indicates the presence of an aldehyde in the sample.

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In this Tollen's test, the species being oxidized is the aldehyde (RCHO), while the species being reduced is the silver(I) ion (Ag+). The visual indicator of a positive test is the formation of silver metal (Ag), which appears as a shiny silver mirror on the inner surface of the test tube.

In the Tollen's test, the reaction involves aldehydes reacting with silver(I) ions in a basic solution to form silver metal and a carboxylate. The generic equation for this reaction is:

2 Ag+ + RCHO + 3 OH- → 2 Ag + RCOO- + 2 H2O

In the Tollen's test, aldehydes react with silver(i) ions in basic solution to form silver metal and a carboxylate. The reaction involves the oxidation of the aldehyde and reduction of the silver(i) ion. Specifically, in the presence of 2 silver(i) ions and 3 hydroxide ions, a generic aldehyde is oxidized to form a generic carboxylate and 2 water molecules, while the silver(i) ions are reduced to form 2 silver atoms. The visual indicator of a positive test is the formation of silver metal, which indicates the presence of an aldehyde. Therefore, in this reaction, the aldehyde species is being oxidized.

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Answer:

Multiply n by M to convert to the mass, m:

m = n × M = (0.09299 mol)/1 × (60.083 g)/(1 mol) = 5.5871 g

Explanation:

Convert from molecules into grams:

5.6×10^22 molecules silicon dioxide (SiO2)

Determine the number of molecules, N_molecules:

N_molecules = 5.6×10^22 molecules

Look up Avogadro's constant, N_A, to find the number of molecules in a mole:

N_A = 6.022×10^23 molecules/mol

Divide N_molecules by N_A to convert to the amount of substance, n:

n = N_molecules/N_A = N_molecules/1 × 1/N_A = (5.6×10^22 molecules)/1 × (1 mol)/(6.022×10^23 molecules) = 0.09299 mol

Calculate the molar mass, M, of SiO_2:

M = 60.083 g/mol

Answer:

+4

Explanation:

In PbO2, oxygen exhibits an oxidation number of -2 (since it's not a peroxide or superoxide):

Let the oxidation number of Pb be x. Then, for the compound to be neutral, the oxidation numbers of all atoms should add up to zero.

⇒ x + (−2) + (−2) = 0

x = +4

So the oxidation no. of Pb is +4.

I hope this helps.

Based on Lana's diagram, the correct statement that explains the results of asexual reproduction is C. The offspring are genetically identical to the parent, because each offspring receives a complete copy of a single parent's chromosomes.

In the diagram, the parent cell divides into two identical daughter cells, each of which contains a complete copy of the parent cell's genetic material.

This type of reproduction, where a single parent produces offspring that are genetically identical to itself, is called asexual reproduction. It is the process by which many unicellular organisms, such as bacteria and some protists, reproduce.

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Answer:

10.224g

Explanation:

Al2S3(s) + 6H2O(l) =>>> 2Al(OH)3(s) + 3H2S(g).

aluminum sulphide is the limiting reactant

if 1 moles of aluminum sulphide reacts to give 3 moles of H2S

then 0.1 moles of aluminum sulphide will give x

3 ×0.1/1 = 0.3

to get the mass, Nm =mass/ molar mass

mass= 0.3 × 34.08

=10.224g

Answer:

exothermic reaction

Explanation:

your welcome :)

By comparing the number of moles of the sulfate salt formed to the stoichiometric ratio in the metal nitrate compound (M(NO3)2), we can determine the molar mass and, therefore, the identity of the metal.

In order to calculate the molar mass of the sulfate salt and determine the identity of the metal, we would need the molar mass of the sulfate ion (SO4^2-) and the stoichiometric ratio in the metal nitrate compound (M(NO3)2). Unfortunately, these values are not provided in the given question.

If you have the molar mass of the sulfate ion and the stoichiometric ratio, you can use this information to calculate the molar mass and identify the metal. If you have more information or any other questions, please let me know!

To know more about that The standard enthalpy change for the reaction can be either exothermic (negative δHo) or endothermic (positive δHo), depending on whether energy is released or absorbed during the reaction.

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