the following chemical reaction takes place in aqueous solution: agno3 nai

Answer:

C I'm pretty sure

Explanation:

uhhhhhhhhh yes

Answer:

Q = 4133.2 J

Explanation:

Hello there!

In this case, since these calorimetry problems are based off the following heat equation involving heat (Q), mass (m), specific heat (C) and temperatures (T):

\(Q=mC(T_2-T_1)\)

Thus, we plug in the given variables to obtain:

\(Q=62.0 g*2.433 \frac{J}{g\°C}* (40.5\°C-13.1\°C)\\\\Q=4133.2J\)

Regards!

At any given temperature, a sample of molecules has a thermal energy distribution plot with a bell-shaped curve. The higher the temperature, the more spread out the curve is. Because of this, a small change in temperature results in a large difference in the number of molecules having enough energy to overcome the activation barrier.

Temperature is a measure of the level or degree of heat on an object. Temperature shows the level of the amount of heat energy that is in the object.

Discussion:

The higher the temperature of an object, the hotter it is, and the more heat energy is in that object. The tool for measuring temperature is a thermometer.

For example, hot water has more heat energy than cold ice.

Temperature is one of the basic quantities, which cannot be derived from other quantities. Temperature is measured in Kelvin (in the International System), but in everyday use the most common measurement is degrees Celsius (°C). For example, the temperature of freezing water is 0°C, the temperature of the human body is about 37.5°C and the temperature of boiling water is about 100°C.

The Kelvin scale has many scientific uses, such as calculating temperature and its change in an ideal gas. The kelvin is the SI unit for temperature, where 0 K is absolute zero (at which there is no movement of particles, which is equivalent to -273 °C.

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Soil erosion is basically the soil being deteriorated by the gradual impact of water or wind to it, being a very mechanical situation, where water or wind will hit the soil, detaching some particles and making the soil weaker. The main cause will be hits from water or wind. Deforestation will have a huge impact on erosion, since the soil where trees are taken down is more likely to receive impacts from wind or water, if the trees were left in their place, they would be used as a "shield" for the soil

Answer:

ice should start to melt at 1°

The best reagents to convert 1-hexyne into (e)-1,2-dibromo-1-hexene are 1 equiv. Br2 in CCl4, followed by NaOH to convert the mixture of (Z)- and (E)-isomers to the desired (E)-isomer.

This reaction is called the Vicinal Dibromination reaction. Option A: xs Br2 in CCl4 is a good choice of reagents, but it will give a mixture of (Z)- and (E)-isomers. Option B: 1 equiv. HBr will result in the formation of (Z)-1-bromo-1-hexene. Option C: ROOR is a radical initiator and will not result in the desired product.

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Neutralization reactions are typically exothermic, which means they release heat energy. As a result, they are enthalpically favored, or thermodynamically favorable.

The energy released in a neutralization reaction is due to the formation of ionic bonds in the salt product and the breaking of hydrogen bonds in the acid and base reactants. The ionic bonds in the salt are stronger than the hydrogen bonds in the acid and base, so the reaction releases energy as these bonds are formed.

The release of heat energy in a neutralization reaction makes it energetically favorable, or enthalpically favored, which means that it will occur spontaneously under standard conditions. The release of heat energy is also why neutralization reactions are often used in exothermic heat-absorbing applications, such as in heat-pack warmers or in some chemical heating and cooling systems.

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The pH of the solution after the volune of base been added is 1.45

Calculation:-

15 mL of 0.200 M NaOH.

Moles of HBr = 0.200 x 0.020 = 0.004 moles.

Moles of NaOH = 0.200 X 0.015 = 0.003.

moles of HBr after titration = 0.004 - 0.003 = 0.001 moles.

The concentration of HBr after titration = 0.001/0.034 = 0.029M

PH -Log (0.029)

= 1.45

Titration is the slow addition of a solution of known concentration to a known volume of another solution of known concentration until the reaction reaches neutralization. Downtitration is characterized by reducing the dose over time once a specific response has been achieved to maintain a specific response while reducing the risk of side effects or to prevent withdrawal or discontinuation syndrome.

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Answer:

Explanation:

The density of a substance can be found by using the formula

\(Density = \frac{mass}{volume} \)

From the question

mass = 6.356 g

volume = 2.56 cm³

Substitute the values into the above formula and solve.

That's

\(Density = \frac{6.356}{2.56} \\ = 2.4828125\)

We have the final answer as

Density = 2.48 g/cm³

Hope this helps you

The four polymers that can be used to give the same effect as xanthan gum are guar gum, locust bean gum, carrageenan, and carboxy methyl cellulose. Among these, guar gum could give high viscosity and lower flocculation.

Polymers are the macromolecules made up of monomers bonded together. These polymers are widely used in various applications due to their diverse properties such as high viscosity, high tensile strength, flexibility, transparency, and many more. Xanthan gum is one of the commonly used polymers that are used as a thickener, emulsifier, and stabilizer in various industries such as food, pharmaceuticals, cosmetics, and many more. Xanthan gum is derived from the bacterial fermentation process, but it is relatively expensive.

Carboxymethylcellulose: Carboxymethylcellulose is a synthetic polymer made by reacting cellulose with chloroacetic acid. It is used as a thickener and stabilizer in various food and cosmetic applications. It has high viscosity and excellent water-binding capacity, making it an ideal alternative to xanthan gum.Out of these four polymers, guar gum could give high viscosity and lower flocculation.

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Unsaturated monomers are added to create a polymer chain without any byproducts being eliminated to create additional polymers. Polyethylene and polypropylene are a couple of examples of additional polymers.

Step-growth polymers, in contrast, are created by reacting two or more monomers, frequently with functional groups, to create a polymer chain by getting rid of tiny molecules like water or alcohol. Polymers with a step-growth pattern include nylon and polyester. Thus, step-growth polymerization involves the interaction of monomers with the elimination of small molecules to form a polymer, whereas addition polymerization involves the addition of monomers to build a polymer without the generation of by-products.

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--The complete Question is, Briefly explain two differences between the preparation of Addition polymers and Step-growth polymers. --

The answer to this question is

0.0037 ml is the measurement which has only non-significant figures.

The basic rules of significant figures are:

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Answer:

Shearing commonly occurs along the edges of tectonic plates, although it may occur in other places as well. Most often it takes place between 10 and 20 kilometers beneath the earth's surface. If the same process occurred at the surface, it would result in fracturing and faulting.

Explanation:

Answer:

Now if u could give us all the questions u got right! lol 8

Explanation:

Answer:

C₂H6

Explanation:

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A

A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:

A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.

B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.

D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.

In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A

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Answer:

gonna check them rn :) youre not d u mb dont worry (:

Answer: 8000

Explanation:

Answer:

freezing

Explanation:

When a solid reaches the temperature of its melting point, it can become a liquid. For water, the temperature needs to be a little over zero degrees Celsius (0oC) for you to melt. ... The reverse of the melting process is called freezing. Liquid water freezes and becomes solid ice when the molecules lose energy.

hope it becomes helpful to you ☺️☺️

good luck

Answer: See explanation

Explanation:

1. Separation of charges in an object without touching it is (charging by induction).

2. The work done moving a positive test charge between two points in an electric field divided by the magnitude of the test charge is the electric (potential difference).

3. An electric (conductor) is a material through which charges move about easily. (Charging by conduction) is giving a neutral object a charge by touching it with a charged object.

4. A material through which electrical charges does not move easily is an electrical (insulator).

5. The lines providing a picture of the size and strength of the field around a charged object are called the (electric field lines).

6. The property of the space around a charged object that exerts a force on other charged objects is the (electric field).

7. A device that helps determine charge using pieces of metal foil is an (electroscope).

8. The magnitude of the charge of an electron is the (elementary charge)

The correct answer is d. gamma radiation.

When iridium (element 77) emits radiation and becomes platinum (element 78), it is typically accompanied by the emission of gamma radiation.

Gamma radiation is a form of electromagnetic radiation that has the highest energy and shortest wavelength within the electromagnetic spectrum. It is highly penetrative and can travel through air, paper, and even thin sheets of metal.

During the process of radioactive decay, when an unstable atomic nucleus undergoes a transition to a more stable state, it emits radiation in the form of alpha particles, beta particles, or gamma rays. In this case, the emission of gamma radiation indicates that the iridium nucleus is transitioning to a more stable platinum nucleus.

To summarize, when iridium emits radiation and becomes platinum, it is accompanied by the emission of gamma radiation.

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The property of matter that is conserved in chemical reactions and shown by balanced equations is known as the Law of Conservation of Mass. According to this law, mass can neither be created nor destroyed in a chemical reaction; it can only be transformed from one form to another.For instance, when two substances are combined, they react and form a new substance.

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Answer:

60 grams NaCl

Explanation:

Because it is a complete reaction, the total mass of all the reactants is used. According to the law of conservation of mass, the same amount product should be produced as there was reactants. Add the mass together.

23+37= 60 g

Answer:

26 c i the write answers. please accept

Answer:

\(\boxed {\boxed {\sf PCl_3}}\)

Explanation:

We are given the percent composition: 22.5% phosphorus and 77.5% chlorine.

We can assume there are 100 grams of this compound. We choose 100 because we can simply use the percentages as the masses.

Next, convert these masses to moles, using the molar masses found on the Periodic Table.

Use the molar masses as ratios and multiply by the number of grams. \(22.5 \ g \ P * \frac {1 \ mol \ P }{30.974 \ g \ P}= \frac {22.5 \ mol \ P }{ 30.974} = 0.7264157035 \ mol \ P\)

\(77.5 \ g \ Cl * \frac {1 \ mol \ Cl }{35.45 \ g \ Cl}= \frac {77.5 \ mol \ Cl }{ 35.45} \ =2.186177715 \ mol \ Cl\)

Divide both of the moles by the smallest number of moles to find the mole ratio.

\(\frac {0.7264157035} {0.7264157035} = 1\)

\(\frac {2.186177715}{0.7264157035}=3.009540824 \approx 3\)

The mole ratio is about 1 P: 3 Cl, so the empirical formula is written as: PCl₃

Answer: The limiting reactant is the reactant that gets consumed first in a chemical reaction and therefore limits how much product can be formed.

Explanation:

^

Answer:

i think 2?

Explanation:

AI2 O2

srry if wrong but

hope this helps

Answer:

Matter is any substance that has mass and takes up space. Any physical object consists of matter. It doesn't matter whether it's an atom, element, compound, or mixture. It's all matter. (Not a pun, i promise ツ)

However, unlike some believe, not everything you encounter in the world is matter. Matter can be converted into energy, which has neither mass nor volume. So, light, sound, and heat are not matter. Most objects have both matter and some form of energy, so the distinction can be tricky. For example, a candle flame certainly emits energy (light and heat), but it also contains gasses and soot, so it is still matter. The building blocks of matter are called "atoms" and "molecules." They, too, are matter. The matter we can detect normally is called "baryonic" matter. However, there is another type of matter out there, which can't be directly detected. But its influence can. It's called dark matter.

Attached below is a picture of examples of matter.

Key words and phrases:

matter, heat, light, dark matter, baryonic matter, sound, energy, mass, volume, space, physical

Hope this helps! Brainliest would be much appreciated! Have a great day! :)

Answer:

question 1 i believe is c i will put the other answeres in comments

when i finish the test

Explanation:

The carbon cycle plays an important in maintaining carbon balance on the earth.

The carbon cycle is the cycle by which carbon is recycled between the atmosphere and the geosphere.

In the carbon cycle, the process of recycling carbon do not include deep burial, compaction, and cementation.

Volcanic eruptions are one natural way that carbon can move OUT of the geosphere.

Fossil fuels, atmosphere, land biomass and rocks are all carbon reservoirs, but fossil fuels contains the MOST carbon.

The atmosphere is the carbon reservoir that changes the quickest and has the biggest direct effect on climate.

Ocean acidification occurs because the ocean absorbs more human-produced CO2, causing the acidity to increase.

A potential impact of ocean acidification is that ocean ecosystems may suffer, making it harder for humans to get food from the ocean.

Therefore, the carbon cycle is important in maintaining carbon balance on the earth.

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The different chemicals emit different colors of light because it will depends on the energy of the photons emitted.

The color of the light emitted will depends on the energy of the photons that is emitted. The emission of the photons take place when the electron jump from the higher energy state to the lower energy state. When the electrons comes to the lower energy state it will emits photons in form of the light.

The light emitted by the photons are different for the different chemicals because no two elements will have the same set of the energy levels.

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Radiocarbon is first produced in the Earth's upper atmosphere when neutrons strike nitrogen atoms.

Radiocarbon, or carbon-14 (C-14), is formed through a process known as cosmic ray bombardment. In the Earth's upper atmosphere, cosmic rays from outer space interact with nitrogen atoms in the atmosphere.

These cosmic rays contain high-energy neutrons that collide with nitrogen-14 (N-14) atoms, which are the most abundant form of nitrogen. When a neutron strikes a nitrogen-14 atom, it can dislodge a proton, resulting in the formation of carbon-14.

The collision between the neutron and the nitrogen-14 atom causes the nitrogen atom to undergo a transformation, converting it into carbon-14. This newly formed carbon-14 atom is unstable and radioactive, with a half-life of about 5,730 years.

It will eventually decay back into nitrogen-14 through the emission of a beta particle (electron) and a neutrino.

Once formed, carbon-14 mixes with the carbon dioxide in the atmosphere and is taken up by living organisms through processes like photosynthesis.

This incorporation of carbon-14 into living organisms allows scientists to use radiocarbon dating to estimate the age of organic materials, such as archaeological artifacts or ancient fossils, by measuring the amount of carbon-14 remaining in the sample.

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Answer: I believe the answer is surface tension :)