balance the equation
____ NH4OH + ____ H3PO4  ____ (NH4)3PO4 + ____ H2O

Answer:

formula units

Explanation:

\($KClO_3$\)  is  potassium chlorate. It is an ionic compound containing potassium, chlorine and oxygen. The ion in potassium chlorate are held together by the ionic bonds in the lattice structure.

A representative particle may be defined as the smallest unit for which the substance exists in its natural form. For most of the elements, atom is the representative particle. Molecule is the representative particle for diatoms and molecular compounds. But for ionic compounds such as  \($KClO_3$\) , NaCl, etc. . the representative particle is its formula units.

The temperature of a gas as the volume of the gas increases and the temperature also rises.

A location inside a gas experiences pressure in all directions. The pressure force at a gas' surface acts perpendicular to the surface. If the gas is moving overall, the measured pressure will differ according to the motion's direction.

The force that is dispersed over a unit area per time perpendicular to an object's surface.

Pressure is the term for the physical force that is exerted on an object. The force is applied perpendicularly to the objects' surfaces per unit area. F/A is the basic formula for pressure (Force per unit area). Pressure is measured in Pascals (Pa). There are four distinct types of pressure: gauge, absolute, ambient, and differential.

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Answer:Water is entirely composed of hydrogen and oxygen Being composed of such elusive and invisible elements

Explanation:this is helped to be clear by oxygen and invisible elements like nutrients

Once upon a time, there was a spacecraft named "Dawn" that was launched on a mission to study the dwarf planet Ceres. The spacecraft was equipped with state-of-the-art technology and a team of highly skilled scientists and engineers were aboard to control and monitor the mission.

As Dawn approached Ceres, the team was amazed at the vast, barren landscape that stretched out before them. They couldn't wait to start collecting data and analyzing the planet's surface. However, soon after they arrived, they encountered a problem. The spacecraft's landing gear malfunctioned and they were unable to land on the surface.

The team quickly came up with a plan B and decided to study Ceres from orbit. They began to collect data and take pictures of the planet's surface. They were shocked to find that Ceres had a surprisingly varied landscape, with towering mountains, deep craters, and mysterious bright spots.

As the mission continued, the team discovered that Ceres had a subsurface ocean beneath its icy crust. The team was thrilled at this discovery and knew that it would greatly contribute to the understanding of our solar system.

However, just as they were about to wrap up their studies, the team received a distress signal from a nearby spacecraft that was in trouble. Without hesitation, the team of Dawn set course to investigate and assist.

As they neared the other spacecraft, they saw that it was under attack by a group of rogue asteroids. The team of Dawn quickly came up with a plan and using their advanced technology, they were able to defend the other spacecraft and destroy the asteroids.

The other spacecraft, grateful for the help, thanked the team of Dawn and they continued on their journey. The team of Dawn, proud of their bravery and the success of their mission, returned to Earth with a wealth of new data and knowledge about Ceres and the Solar System.

The Dawn spacecraft mission was a great success and it helped scientists understand more about the dwarf planet Ceres, and it also demonstrated the courage, resourcefulness, and the sense of camaraderie of the team.

A particular ore employed in this study needed a concentration of 100 g/L (200 lb/st solution or 600 lb/st ore) NaCN to extract gold at a rate of over 90 percent.

Since the 1970s, cyanide leaching, often known as "cyanidation," has been the main method used to extract gold. In this method, sodium cyanide is used to selectively dissolve gold from ore in a solution that contains between 100 and 500 parts per million, or 0.01% and 0.05% cyanide.

Certain bacteria, fungus, and algae can generate cyanides. Additionally, cyanides can be found in things like tapioca, spinach, bamboo shoots, almonds, lima beans, fruit pits, and car exhaust.

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Answer:

no

Explanation:

no its not legal to purchase it

The decrease in free energy during the phase transition drives the spontaneous freezing of water below 0 °C, despite the decrease in entropy. Above 0 °C, the increase in entropy becomes dominant, resulting in a positive ΔG and preventing the spontaneous freezing of water.

Water spontaneously freezes to form ice below 0 °C despite the decrease in entropy because the decrease in free energy during the phase transition drives the process. The entropy of a system is related to the number of microstates it can occupy, representing its disorder or randomness. When water freezes, the water molecules rearrange themselves into a more ordered structure in the solid phase. This ordered arrangement reduces the number of available microstates and thus decreases the entropy.

However, the decrease in entropy alone does not determine the spontaneity of a process. The change in free energy (ΔG) accounts for both entropy and enthalpy changes. ΔG = ΔH - TΔS, where ΔH is the enthalpy change and T is the temperature. Below 0 °C, the enthalpy change associated with the formation of the hydrogen bonds in the ice lattice is large enough to offset the decrease in entropy, resulting in a negative ΔG. This negative value indicates a spontaneous process.

Above 0 °C, the enthalpy change is still favorable, but the positive ΔS term becomes dominant due to the increase in entropy. As the temperature rises, the increase in entropy of the water molecules becomes significant, leading to a positive ΔG. Thus, above 0 °C, the freezing of water is not spontaneous, and water remains in its liquid state.

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Answer:

Fluorine has smaller size than iodine, has more tendency to attract shared pair of electron towards itself

By investigating the origins of various diseases, scientists play a key role in hospitals. They aid in understanding the underlying processes, risk factors, and potential therapies for many illnesses through their scientific knowledge and research techniques.

To understand the intricacies of diseases , their study involves running tests, analysing data, and working with other medical specialists. By figuring out the underlying reasons, scientists make it possible to create efficient diagnostic equipment, therapeutic methods, and preventative techniques .

Their discoveries and techniques expand medical knowledge, improve patient care, and ultimately work towards communities and people experiencing greater health. There are very factors that contribute to the overall institution.

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The major product expected from the sequential organic reaction of cyclopentane with Br2/H2O, followed by sodium hydroxide , then the correct option is e) None of these choices.

The sequential organic reaction of cyclopentane with Br2/H2O, followed by sodium hydroxide, leads to the formation of a major product.

The reaction of cyclopentane with Br2/H2O results in bromination of the double bond, adding Br atoms to the cyclopentene molecule. This forms a cyclic bromonium ion intermediate.

Subsequent treatment with sodium hydroxide (NaOH) triggers an intramolecular nucleophilic attack by the hydroxide ion (OH-) on the bromonium ion, resulting in the formation of a cyclic alcohol.

Among the choices given, we can analyze the possible products based on the given information. Since we don't have a visual representation of the structures, it is not possible to directly determine the specific product. However, based on the reaction conditions, the expected product is likely to involve the formation of a cyclic alcohol.

Given the options provided (I, II, III, IV), the correct answer cannot be determined without additional information. Hence, the correct choice is e) None of these choices.

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A) structural formula

On edge

Answer:

A

Explanation:

45.784 grams of water will be formed when 39 g hydrogen is mixed with 49.6 g oxygen.

The balanced reaction for the above reaction is given as:

2 H₂ + O₂ → 2 H₂O

By the relationship between the amount of reagents and products in a chemical reaction, we can conclude that the following amounts of each compound participate in the reaction:

H₂: 2 moles

O₂: 1 mole

H₂O: 2 moles

the molar mass of the compounds are as follows:

H₂: 2 g/mole

O₂: 32 g/mole

H₂O: 18 g/mole

Then, by the reaction stoichiometry, the following amounts of reactant and product mass participate:

For H₂: 2 moles × 2 g/mole = 4 g

For O₂: 1 mole × 32 g/mole = 32 g

For H₂O: 2 moles × 18 g/mole = 36 g

The limiting reagent of the reaction is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, at that time the chemical reaction will stop.

Since we have less mass than we need to react with 39 grams of H₂, oxygen O₂ will be the limiting reagent.

Then we can apply the following rule of three: if by stoichiometry 32 grams of O₂ form 36 grams of H₂O, 49.6 grams of O₂ will produce H₂O is:

mass of H₂O = (49.6 grams of O₂ × 36 grams of H₂O) / 39 grams of O₂

mass of H₂O = 45.784 grams

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Answer:

4

Explanation:

Speed=Distance/time, so 20/5 divide time divided by distance. so the answer is 4.

The speed of Haley the hummingbird is 4 m/s.

From the question,

We are to calculate the speed of Haley the hummingbird

Speed is given by the formula

\(Speed =\frac{Distance\ traveled}{Time\ taken}\)

From the given information,

The hummingbird can fly from a pansy flower to a hibiscus flower 20 meters away in 5 seconds.

That is,

The bird can cover a distance of 20 meters in 5 seconds.

Therefore,

Speed of the hummingbird = \(\frac{20}{5}\)

Speed of the hummingbird = 4 m/s

Hence, the speed of Haley the hummingbird is 4 m/s.

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The molecules that are products in the Krebs cycle are CO2, NADH, FADH2, and ATP. The remaining molecules listed (FAD, NAD+, Acetyl, CoA, Oxygen, and Pyruvate) are not direct products of the Krebs cycle.

The Krebs cycle, also known as the citric acid cycle or tricarboxylic acid cycle, is a series of chemical reactions that occur in the mitochondria of cells. It plays a crucial role in the oxidative metabolism of glucose and other fuels.

In the Krebs cycle, the following molecules are products:

a) FADH2: FADH2 is produced during the conversion of succinate to fumarate in the Krebs cycle.

b) NADH: NADH is produced during multiple steps of the Krebs cycle, including the conversion of isocitrate to α-ketoglutarate and the conversion of malate to oxaloacetate.

c) ATP: ATP is not directly produced in the Krebs cycle. However, it is generated through oxidative phosphorylation, which is tightly coupled to the electron transport chain that receives electrons from NADH and FADH2 produced in the Krebs cycle.

d) CO2: Carbon dioxide (CO2) is released as a byproduct during various reactions in the Krebs cycle, including the conversion of isocitrate to α-ketoglutarate and the conversion of α-ketoglutarate to succinyl-CoA.

The molecules FAD, NAD+, Acetyl, CoA, Oxygen, and Pyruvate are involved in the Krebs cycle but are not considered direct products. FAD is a cofactor that is reduced to FADH2 during the cycle, NAD+ is reduced to NADH, Acetyl is a reactant that combines with oxaloacetate to form citrate, CoA is a cofactor that assists in the formation of acetyl-CoA, Oxygen is used as the final electron acceptor in oxidative phosphorylation, and Pyruvate is an intermediate produced from glucose metabolism but enters the Krebs cycle after being converted to acetyl-CoA.

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Answer:

In general, the atomic radius decreases as we move from left to right in a period and it increases when we go down a group. This is because in periods the valence electrons are in the same outermost shell. The atomic number increases within the same period while moving from left to right which in turn increases the effective nuclear charge.

Explanation:

The volume of steam that could be produced at STP if 12.8 g of oxygen reacts with excess hydrogen is 17.92 L

We'll begin by obtaining the mole of steam produced. This can be obtained as follow:

2H₂ + O₂ -> 2H₂O

From the balanced equation above,

1 mole O₂ reacted to produce 2 moles of steam, H₂O

Therefore,

0.4 mole O₂ will react to produce = 0.4 × 2 = 0.8 mole of steam, H₂O

Finally, we shall determin the volume as follow:

At standard temperature and pressure (STP),

1 mole of H₂O = 22.4 L

Therefore,

0.8 moles of H₂O = (0.8 mole × 22.4 L) / 1 mole

0.8 moles of H₂O = 17.92 L

Thus, we can conclude that the volume produced is 17.92 L

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Answer:

So, total number of atoms = 6 + 12 + 6 = 24.

Explanation:

The aqueous solutions can be arranged in increasing boiling point order as follows: 0.050m Al(ClO4)3 < 0.110m K2CO3 < 0.300m C6H12O6.

The boiling point of a solution is influenced by the concentration of solute particles in the solution. The greater the concentration of solute particles, the higher the boiling point. In this case, we are comparing the boiling points of three different aqueous solutions.

The solution with the lowest boiling point is 0.050m Al(ClO4)3. This is because Al(ClO4)3 is an ionic compound that dissociates into multiple ions in water, thereby increasing the number of solute particles. Higher concentration of solute particles raises the boiling point.

The solution with the next higher boiling point is 0.110m K2CO3. K2CO3 is also an ionic compound and dissociates into two ions in water. Although the concentration is higher compared to Al(ClO4)3, it is lower than that of C6H12O6.

The solution with the highest boiling point is 0.300m C6H12O6. C6H12O6, which is glucose, is a molecular compound and does not dissociate into ions in water. Therefore, it has the lowest concentration of solute particles among the given solutions, resulting in the lowest boiling point.

Hence, the correct order of increasing boiling points is 0.050m Al(ClO4)3 < 0.110m K2CO3 < 0.300m C6H12O6.

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The concentration of the pollutant in the 3.0 kg sample of pond water is determined to be 1.2 ppm by converting the mass and calculating the ratio.

To find the concentration of the pollutant in the 3.0 kg sample of pond water in parts per million (ppm), you can follow these steps:

1. Convert the mass of the sample to milligrams (mg), as the mass of the pollutant is given in mg. There are 1,000,000 mg in 1 kg, so:
3.0 kg * 1,000,000 mg/kg = 3,000,000 mg

2. Determine the ratio of the mass of the pollutant to the mass of the sample:
3.6 mg pollutant / 3,000,000 mg sample

3. Calculate the concentration in parts per million (ppm) by multiplying the ratio by 1,000,000:
(3.6 mg pollutant / 3,000,000 mg sample) * 1,000,000 = 1.2 ppm

So, by calculating we can say that the concentration of the pollutant in the 3.0 kg sample of pond water is 1.2 ppm.

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The root-mean-square (RMS) speed of gas particles is the square root of the average of the squared speeds of the gas particles.

The RMS speed of gas particles is a measure of the average kinetic energy of the gas particles. It is calculated by finding the square root of the average of the squared speeds of the gas particles.

The squared speed of a gas particle is proportional to its kinetic energy, so taking the average of the squared speeds gives an indication of the average kinetic energy of the gas particles.

The RMS speed is important in understanding the behavior of gases, as it determines factors such as diffusion, effusion, and viscosity. Additionally, the RMS speed can be related to temperature through the kinetic theory of gases, which states that the average kinetic energy of gas particles is proportional to the absolute temperature.

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Saturn's rings are made of ice and rock. These pieces vary in size. Some are as small as a grain of sand. Others are as large as a house. The rings of Saturn are the most extensive ring system of any planet in the Solar System. They consist of countless small particles, ranging in size from micrometers to meters, that orbit around Saturn. They are found around the planet

Answer:

Every System has an IPO: Input, Process, Output. When you look at any system, in its simplest form, it has 3 components. It's what I'll call IPO: Input, Process, Output. Input – anything you do to activate the system or give the system to use.

Explanation:

Answer:

in photosynthesis polar molecules are molecules that have a diffrent arangment in molecules for example polar water molecule is when oxegen is on one end and the hydrogen is on the other. olmost any compound can have a polar or non polar molecule.

Explanation:

Answer:

What is the name of the lab tool that is used to transfer a sample to a microscope slide?

A-a dropper

C-scissors

D-a ruler

Explanation:

got it wrong but this is the answer edg 2021

In the preparation of a microscopic slide, the items which are used are medicine dropper, scissors, and a slip cover. Thus, the correct option is D.

Microscope slides are made for the purpose of observations of different objects. After the observation, the slides are discarded. In most cases, the slides use a liquid mounting medium such as water or glycerin.

The procedure for the preparation of the slide is as follows:

1. Place a drop of liquid mounting medium in the center of the slide.

2. Position the sample on liquid with the use of tweezers.

3. At an angle, place one side of the cover slip against the microscopic slide making contact with outer edge of the liquid drop.

4. Lower the cover slip slowly, avoiding air bubbles.

5. Remove the excess water present in it with the help of paper towel.

Therefore, the correct option is D.

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(a) Chlorine dioxide- Formula: ClO2

Chlorine dioxide is an oxidizing agent used in various industrial applications, such as water treatment, disinfection of surfaces, and bleaching of pulp and paper.

(b) Dinitrogen tetraoxide - Formula: N2O4

Dinitrogen tetraoxide is a nitrogeoxide that has the chemical formula N2O4. It is a highly reactive oxidant that can be used in rocket propellants and explosives.

(c) Potassium phosphide - Formula: K3P

Potassium phosphide is a binary compound of potassium and phosphorus, which is used as a source of phosphorus in the manufacture of fertilizers.

(d) Silver(I) sulfide - Formula: Ag2S

Silver sulfide is a compound of silver and sulfur with the chemical formula Ag2S. It is an insoluble black solid that is used in photographic film and as a semiconductor material.

(e) Aluminum fluoride trihydrate - Formula: AlF3.3H2O

Aluminum fluoride trihydrate is a hydrated form of aluminum fluoride, which is used as a flux in the production of aluminum. It is also used as a pesticide and in the manufacture of ceramics and glass.

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Answer:

Density, \(d=26.7\ g/cm^3\)

Explanation:

The attached figure shows a 38.6 kg marble slab. The dimensions of the marble slab is 23 cm × 17 cm × 4 cm

Density = mass/volume

Volume of a cuboid shape is equal to, V = 23 cm × 17 cm × 4 cm

V = 1564 cm³

Density,

\(d=\dfrac{38.6\times 10^3\ g}{1564\ cm^3}\\\\d=24.68\ g/cm^3\)

or

\(d=26.7\ g/cm^3\)

So, the density of the marble slab is \(26.7\ g/cm^3\).

Answer: 24.7

Explanation:

Answer:

1. Boron B 13 2 Non-Metal

2. Aluminium Al 13 3 Metal

3. Tin Sn 14 5 Metal

4. Helium He 18 1 Non- Metal

5. Neon Ne 18 2 Non- Metal

6. Calcium Ca 2 4 Metal

7. Francium Fr 1 7 Metal

8. Gold Au 11 6 Metal

In the given chemical reaction, calcium (Ca) is oxidized, whereas oxygen (O2) is reduced. This is because oxidation involves the loss of electrons, while reduction involves the gain of electrons.

In the reaction, each calcium atom loses two electrons to form Ca2+ ions, while each oxygen molecule gains two electrons to form O2- ions. The oxidation state of calcium increases from 0 to +2, indicating that it has lost electrons and been oxidized. Conversely, the oxidation state of oxygen decreases from 0 to -2, indicating that it has gained electrons and been reduced.
The formation of CaO(s) from Ca(s) and O2(g) is an example of a redox reaction, where reduction and oxidation occur simultaneously. Calcium acts as the reducing agent, as it causes oxygen to be reduced by donating electrons, while oxygen acts as the oxidizing agent, as it causes calcium to be oxidized by accepting electrons.
In summary, in the reaction 2 Ca(s) + O2(g) → 2CaO(s), calcium is oxidized, and oxygen is reduced.

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