In the kinetic theory, the particles in a gas
A. move independently of each other.
B. have attractive and repulsive forces.
C. move slowly.
D. are relatively close together.

A coarse particle has a diameter of 1x10-6m. a nanoparticle has a diameter of 1.6 x 10-9m. Calculate how many times bigger the diameter of the coarse particle is than the diameter of the nanoparticle

Answer:

copper chloride is green

and bromide copper is gray

Explanation:

because the copper(II) ion

Hemoglobin with bound carbon dioxide and hydrogen ions is carried in the blood back to the lungs, where it releases the hydrogen ions and carbon dioxide and rebinds oxygen. Thus, hemoglobin helps to transport hydrogen ions and carbon dioxide in addition to transporting oxygen.

Answer:

Sodium hydrogen sulphite

Explanation:

The white precipitate formed is because of the sulphite ion and a carbonyl group formed

\(.\)

The number of moles of nitrogen, N in 65 moles of Pb(NO₃)₄ is 260 moles

We'll begin by obtaining the number of mole of N in one mole of Pb(NO₃)₄. Details below:

From the formula of Pb(NO₃)₄, we can see that there are 4 moles of N in 1 mole of Pb(NO₃)₄

With the above information, we can determine the number of mole of N in 65 moles of Pb(NO₃)₄. This is illustrated below:

1 mole of Pb(NO₃)₄ contains 4 moles of N

Therefore,

65 mole of Pb(NO₃)₄ will contain = (65 moles × 4 moles) / 1 mole = 260 moles of N

Thus, we can conclude from the above calculation that the number of mole of N is 260 moles

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Hello, this is Bing. I can help you with your question. Based on the information I found on the web, **H2** can be broken down into its two atoms of hydrogen (H) by supplying enough energy to overcome the bond that holds them together⁴. This process is called **dissociation** and requires an energy equal to or greater than the **dissociation energy** of H2, which is about 436 kJ/mol⁴.

One way to break down H2 is by using **electricity** to split water (H2O) into hydrogen (H2) and oxygen (O2) through a process called **electrolysis**¹. In this process, water is decomposed into its elements by passing an electric current through it. The electric current is provided by a battery or another source of electricity and the water needs to have an **electrolyte**, such as salt or acid, added to it to make it conductive¹. Two electrodes, usually made of metal or other conductive material, are inserted into the water and connected to the battery. The electrode connected to the positive terminal of the battery is called the **anode** and the one connected to the negative terminal is called the **cathode**¹. When the electric current flows through the water, hydrogen gas bubbles form at the cathode and oxygen gas bubbles form at the anode¹. The overall chemical reaction for electrolysis of water is:

2 H2O → 2 H2 + O2

Another way to break down H2 is by using **heat** to cause a reaction between hydrogen and oxygen that produces water and releases a large amount of energy. This reaction is called **combustion** or **oxidation** and can be ignited by a spark or a flame³. The reaction is very fast and explosive and can be dangerous if not controlled. The overall chemical reaction for combustion of hydrogen is:

2 H2 + O2 → 2 H2O

I hope this helps you understand how H2 can be broken down and what methods are used to do so.

The balanced net ionic equation for an oxidation-reduction reaction between Ag+ (aq) and Ni(s) based on the half-reactions represented above is: d. 2Ag+(aq) + Ni(s) â 2Ag(s) + Ni²+(aq)

The reason is that both half-reactions must be balanced for both electrons and atoms, so the number of electrons lost by the oxidation half-reaction must equal the number of electrons gained by the reduction half-reaction. In this case, the oxidation half-reaction is: Ag+(aq) + e- -> Ag(s) which loses 1 electron. The reduction half-reaction is: Ni(s) -> Ni²+(aq) + 2e- which gains 2 electrons. To balance the number of electrons between the two half-reactions, we need to multiply the oxidation half-reaction by 2, so that it loses 2 electrons. So the balanced net ionic equation is 2 Ag+(aq) + Ni(s) -> 2 Ag(s) + Ni²+(aq).

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The answer should be A

VisibleVisible wave length visible wavelength of light that are emitted by Adams can be used to get Nate explosive devices remotely

Explanation:

Actual yeild is equal 75.1% of the theoretical yeild

(75.1/100)×3.12

= 2.34312

approximately = 2.34 g.

It is false because NaCl has a higher bond energy than Nal.

The melting point of a substance is determined by the strength of the intermolecular forces between its atoms or ions. In the case of NaCl, the strong electrostatic attraction between the positively charged Na+ ions and the negatively charged Cl- ions results in a relatively high melting point.

In contrast, NaI is a ionic compound with a lower bond energy between the atoms. So, it has lower melting point in comparision to NaCl. So the statement is False, NaCl has a higher melting point than NaI.

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The sample containing 7.1 × 10^19 molecules of H2O corresponds to approximately 1.18 × 10^(-4) moles of H2O.

To determine the number of moles of H2O in a sample containing 7.1 × 10^19 molecules, we need to use Avogadro's number, which states that 1 mole of any substance contains 6.022 × 10^23 molecules.

Given that there are 7.1 × 10^19 molecules of H2O in the sample, we can calculate the number of moles using the following formula:

Moles = Number of molecules / Avogadro's number

Moles = 7.1 × 10^19 / 6.022 × 10^23

Moles ≈ 1.18 × 10^(-4) moles

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the capillary action, the tops of plants are supported by little tubes. In a tube with a diameter of 0.005 mm and a height of 70.8 m, a water solution will rise due to the capillary effect.

Given,

tube diameter ,D= 0.005 mm

contact angle, Ф=20°

density of water ,ρ=998.21 kg/m³

the surface tension of water at 20° C,σ\(_{s}\)=0.073 N/m

radius of capillary tube ,R=D/2

R=0.005/2

 = 0.0025 mm

R=2×10⁻⁶ m

capillary raise is given by

h=(2σ\(_{s}\)/PgR)cosФ

 =(2(0.073 N/m)/(998.21 kg/m³)(9.81m/s²)(2×10⁻⁶m))cos20°

h=70.8m

∴The capillary rise is h=70.8m

Capillary effect, also known as capillary action or wicking, is the ability of a liquid to flow against gravity in narrow spaces due to the interaction between the liquid and the surface of the container it is in. The height that the liquid can rise is dependent on the diameter of the tube or material it is in, the properties of the liquid, and the properties of the container. Capillary action is important in many natural and technological processes, such as plant water uptake, inkjet printing, and the functioning of some medical devices.

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Copper is higher than silver in the electrochemical series hence copper displaces silver in the electrochemical series.

The solubility of a metal in another is determined by their relative positions in the electrochemical series. The metals that are higher above in the electrochemical series displaces the metals that are lower in the electrochemical series.

Copper is higher than silver in the electrochemical series hence copper displaces silver in the electrochemical series. Therefore, the correct explanation for an observation is that;

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Answer:

Observation 1 is a result of copper ions moving into the solution.

Explanation:

got it right on the test

The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

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Answer:

three half-filled orbitals

Answer:

6p

Explanation:

It can hold a total of 6

Hello!

Answer:

32.8 °C

Hope this helps :)

Answer:its saturated   or  unsaturaded

Explanation:

When the thermal energy of the air around a fire is transferred to the surrounding air  A. The thermal energy is spread out by the surrounding air.

Thermal energy transfers occur in 3 approaches conduction, convection, and radiation. whilst thermal power is transferred among neighboring molecules that are in touch with each other, which is referred to as conduction.

Thermal strength refers to the power contained inside a system that is liable for its temperature. heat is the go with the flow of thermal electricity. an entire department of physics, thermodynamics, offers how heat is transferred among exceptional systems and how work is accomplished in the manner.

Thermal strength also referred to as heat strength is produced when a rise in temperature reasons atoms and molecules to transport quicker and collide with each other. The energy that comes from the temperature of the heated substance is referred to as thermal strength.

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Answer:

Repeated SN2 reactions occur leading to the formation of a racemic mixture

Explanation:

S-2-iodooctane is a chiral alkyl halide with an asymmetric carbon atom. The presence of an asymmetric carbon atom implies that it can rotate plane polarized light and thus lead to optical isomerism. The two configurations of the compound are R/S according to the Cahn-Prelong-Ingold system.

However, when S-2-iodooctane is treated with sodium iodide in acetone, repeated SN2 reactions occur since the iodide ion is both a good nucleophile and a good leaving group. Hence a racemic modification is formed in the system with time hence we end up with (±)- Iodooctane.

This element is in group 1.

According to the octet rule, this element would be expected to form an ion with a charge of +1.

If X is in period 5, the ion formed has the same electron configuration as the noble gas Krypton

The symbol for the ion is Rb⁺

Electronic configuration refers to the arrangement of electrons in the orbitals of an atom or molecule, indicating the energy level of the electrons, the number of electrons in each energy level, and the number of electrons in each orbital.

Considering the given element:

It has one valence electron, hence it is in group 1. Group 1 elements form ions with a charge of +1.

Losing one electron will give the ion the same electron configuration as Kyrton since it is the noble gas in Period 4.

The element is rubidium and the ion is Rb⁺.

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128.4 grams of carbon are required to produce 10.7 moles of methane.

The balanced chemical equation for the reaction C + 2H2 - CH4 is as follows:C + 2H2 ⟶ CH4.

In this equation, we can see that for one mole of methane (CH4), one mole of carbon (C) and two moles of hydrogen (H2) are required.

The molar mass of carbon is 12 g/mol.

The molar mass of methane is the sum of the molar masses of its constituent atoms, which is 12 g/mol (for carbon) + 4(1 g/mol) (for hydrogen) = 16 g/mol.

To find the amount of carbon required to produce 10.7 moles of methane, we can use the following proportion:1 mole CH4 : 1 mole C

Therefore,10.7 moles CH4 : x moles C.

Thus,x = 10.7 moles C.

Since we know the molar mass of carbon (12 g/mol), we can convert the moles of carbon to grams:mass = moles × molar massmass of carbon required = 10.7 moles × 12 g/mol= 128.4 g.

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Answer:

Mole Habitat Fossorial by nature, moles live and forage underground in broad systems of burrows and tunnels. Because they prefer to dig in soil that is loose and moist, they are most abundant in there habitat

Explanation: MARK AS BRAINLIEST I HAVE ZERO

Answer:

2

Explanation:

I think this because its common sense, you need an energy sorce to create light.

Answer:

electric energy ---> heat energy or A.

Explanation:

the name says it all

Answer: is A

Explanation:

The required number of ice cubes are "3".

Given:

Mass of coffee,

Specific heat of ice,

Specific heat of water,

Specific heat of water's fusion,

Let,

The required no. of ice cubes be "n".

→ Heat lost by coffee will be:

= \(355\times 4.185\times 30\)

= \(44559.6 \ J\)

→ Heat gained by no. of ice cubes will be:

= \(24n\times 2.05\times 18.5\)

= \(910.2 \ n \ J\)

→ Required heat by ice to melt will be:

= \(24n\times 334\)

= \(8.016 \ n \ J\)

→ Required heat by water will be:

= \(24n\times 4.184\times 55\)

= \(5522.88 \ n \ J\)

hence,

We know that,

→ \(Heat \ lost \ by \ coffee = Total \ heat \ gained \ by \ ice \ cubes\)

                      \(44559.6 = 14449.08 \ n\)

                                \(n = \frac{44559.6}{14449.08}\)

                                \(n = 3\)

Thus the above answer i.e., option C is the right answer.    

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Answer:

The required number of ice cubes are "3".

Explanation:

Transport media is a significant pollution source by emitting gasses and particles. YES. Automobile makers should adhere to quotas for zero-emission vehicles.

These are cars, trucks, and buses that mostly run on electricity. The pollution degree caused by these vehicles is highly reduced compared with ordinary vehicles because of the reduction in fuel use and the consequent reduction in gasses and other substances emissions.

There are three types of zero-emission vehicles

Currently, and for decades, transport media are one of the most significant sources of gasses and other polluting substances emissions that lead to an increase in the greenhouse effect and global warming. Some of them are mentioned in the article -VOCs, nitrogen oxide, carbon monoxide, and dioxide, hydrocarbon-.

These are all primary pollutants suspended in the air that can produce secondary pollutants.

The mentioned pollutants could be significantly reduced by substituting transport media or improving the combustion processes. This last goal could be achieved by using alternative fuels and technologies or by using catalytic converters.

A considerable reduction in pollutant emissions from Zero-Emission Vehicles has already been proven in many countries. So several actions and regulations should be done about it to decrease even more -to near-zero- gasses and other particles emission. And more countries should be involved.

Following this thinking line, the answer is YES. Automobile makers should adhere to quotas of zero-emission vehicles set by states, even if it causes automakers to lose revenue.

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