How many liters of O2 will be produced at 66.00 degrees Celsius and 2.80 kPa pressure in the decomposition of 408.70 moles KCIO3?
2KCIOg ---> 2KCI + 302(g)
Round to two decimal places.

Answer:

The attraction of water molecules to other substances, like soil or glass, is called adhesion. As drops of water are added onto a penny, the adhesive force between the water and the penny keeps the water from falling off.

Explanation:

The formation of a fluid bubble on a penny is an example of cohesion, not adhesion.

When a penny is wetted with a small amount of water, the water molecules are attracted to each other by cohesive forces, which are intermolecular forces that bind molecules of the same substance together. As a result, the water molecules tend to stick to each other rather than to the surface of the penny, forming a rounded shape or a "bubble".

The cohesive forces between water molecules are strong enough to overcome the gravitational force acting on the small volume of water on the penny, which is why the water does not run off the penny. This phenomenon is also known as surface tension, which is the cohesive force that acts between molecules at the surface of a liquid.

In contrast, adhesion refers to the intermolecular forces that bind different substances together, such as the attraction between water molecules and a surface. If the adhesive forces between water and the penny were stronger than the cohesive forces between water molecules, the water would spread out over the surface of the penny, rather than forming a bubble. However, in the case of the penny and water, the cohesive forces between water molecules are stronger than the adhesive forces between water and the penny, resulting in a fluid bubble.

Answer:

2.The water, having a stronger concentration, moves inside the tea bag.

Explanation:

This is a form of osmosis called hypotonic, in which a solution with higher amounts of fluids than the cell will cause the cell to swell and expand. The opposite happens in hypertonic when the solution has fewer fluids than the cell, causing the cell to shrink. Essentially the liquid moves from the higher concentration to the lower one.

Ne, Ar, and Kr share properties and the number of electrons in their outermost energy level because they belong to the same group (noble gases). Therefore, option A is correct.

Any of a class of rare gases with high stability and very low reaction rates, such as helium, neon, argon, krypton, xenon, and occasionally radon. also known as the inert gas.

Noble gases are low chemically reactive, odorless, colorless, nonflammable, and monotonic gases. Noble gases are exceedingly stable and unlikely to form chemical connections since they have the minimal inclination to receive or lose electrons. Hence, option A is correct.

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If you have 3 moles of carbon dioxide and 4 moles of water that is being produced by a combustion of propane. That would make your answer be 4 moles

Hope this helps :)

The answers include the following:

This is referred to as the difference in DNA among individuals or the differences between populations.

The organisms which survive have favorable traits because it gives them some advantage and are more likely to survive and reproduce such as the speed of some preys such as deer which helps it to evade predators and gives them enough time to mate and reproduce.

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The total number of the ions in the 3.93 mol of the MgCl₂ is 7.09 × 10²⁴ ions .

The chemical equation is as follows :

MgCl₂ --->  Mg⁺  +  2Cl⁻

The total number of the ions of  MgCl₂ = 1  Mg⁺ + 2 Cl⁻

The total number of the ions of  MgCl₂ = 3 ions

The number of the moles of the MgCl₂ = 3.93 mol

1 mole of the substance = 6.022 × 10²³ ions

The total number of the moles of substance = 3 × 3.93 × 6.022 × 10²³ ions

The total number of the moles of ions = 7.09 × 10²⁴ ions

Thus, the  total number of  the ions of the  MgCl₂ is 7.09 × 10²⁴ ions .

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The overall reaction for the oxidation of SO2 by O2 to give SO3 is:

SO2(g) + O2(g) ⟶ 2SO3(g)

The two given reactions are:

NO2(g) + SO2(g) ⟶ NO(g) + SO3(g)

2NO(g) + O2(g) ⟶ 2NO2(g)

Adding these reactions, we get:

NO2(g) + SO2(g) ⟶ NO(g) + SO3(g)

2NO(g) + O2(g) ⟶ 2NO2(g)

2NO2(g) + SO2(g) + O2(g) ⟶ 2NO(g) + 2SO3(g)

Therefore, the overall reaction for the oxidation of SO2 by O2 to give SO3 is:

SO2(g) + O2(g) ⟶ 2SO3(g)

where the catalyst NO2 is not explicitly shown. All the reactants and products are in the gas phase.

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Answer:

A. sunlight

Explanation:

The source of nearly all of the energy for producers and consumers is sunlight

The mass of copper (ii) nitrate formed is 469 g Cu(NO₃)₂

The balanced chemical equation for the reaction between copper and silver is as follows:

From the equation, the mole ratio of Ag and  Cu(NO₃)₂ is 2 : 1

5.0 moles Ag × 1 mole Cu / 2 moles Ag = 2.5 moles Cu

2.5 moles Cu × 1 mole Cu(NO3)2 / 1 mole Cu = 2.5 moles Cu(NO₃)₂

The mass of 2.5 moles Cu(NO₃)₂ = 2.5₂ × 187.56 g/mol

Mass of copper (ii) nitrate = 469 g Cu(NO₃)₂

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Using  hypothetical scenario, the Separation of  the Pennie’s are given below

Pennies dated after 1982 are lighter and thinner because zinc is less dense than copper. However, they have a similar diameter of 19.05mm to pennies dated before 1982. The difference in composition between the two groups is important because copper is a valuable metal, and the cost of producing a penny exceeded its value. By reducing the amount of copper in pennies, the U.S. Mint was able to save money on production costs.

Pennies dated before 1982 are made of 95% copper and 5% zinc and weigh 3.11 grams. They have a diameter of 19.05mm and a thickness of 1.55mm. Pennies dated after 1982 are made of 97.5% zinc and 2.5% copper and weigh 2.5 grams. They have a diameter of 19.05mm and a thickness of 1.52mm.

Therefore, the main difference between the two groups is their composition, weight, and thickness. The pennies dated before 1982 are larger, heavier, and thicker than those dated after 1982.

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Answer:

I think it is true

Explanation:

I just answer this question

The number of litres in 0.500 moles of Argon gas is 11.19L.

The number of litres in a substance can be calculated by dividing the mass of the substance by its density.

However, according to this question, there are 0.500 moles of Argon. The mass can be calculated as follows:

mass = no of moles × molar mass

mass = 0.5 mol × 39.948 u

mass = 19.97g

The density of argon gas at STP is 1.7857 g/L.

Volume = 19.97g ÷ 1.7857g/L

Volume = 11.19L

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The bond is a double covalent bond

The bond in the N2 molecule is a  double covalent bond. In a covalent bond, atoms share electrons to fill their outermost valence shells and achieve greater stability.

In the case of the N2 molecule, each nitrogen atom has five valence electrons, and they share three electrons with each other to form a triple covalent bond. This results in a stable N2 molecule, with each nitrogen atom having a full outer shell of eight electrons.

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Answer:

670,385k

Explanation:

Answer:

Explanation:

In addition, use Form 1099-MISC to report that you made direct sales of at least $5,000 of consumer products to a buyer for resale anywhere other than a permanent retail establishment.

Answer:

Pi bonds are formed from the overlap of parallel p orbitals on adjacent atoms. They are not formed from hybrid orbitals.

A Lewis base compound has a pair of electrons that are 'donated' to an electron-acceptor forming a covalent bond. A Lewis Base will have lone-pair electrons. All anions are Lewis Bases considering they donate electrons.

Image result for Identify the Lewis base in this balanced equation: Identify the Lewis base in this balanced equation: - 1

The lone pair on the nitrogen atom is transferred to the hydrogen ion, making the NH3 a Lewis base while the H+ is a Lewis acid.

Image end result for Identify the Lewis base in this balanced equation: Identify the Lewis base in this balanced equation: - 1

BF3 is a Lewis acid, but be aware it has no H to donate, it represents a new type of acids.

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Answer:NH3

Just know I got it wrong so you can get it right

Both the hydrogen and oxygen atoms in water have a partial positive and negative charge. Both hydrogen and carbon ions are both somewhat positive in ethanol, while oxygen is partially negative.

The c (C), oxygen (O), & hydrogen (H) atoms that make up alcohols are combined to form organic molecules. The alcohol is known as ethanol if it contains two carbons (also known as ethyl alcohol). In beverages like beer and wine, alcohol is present in the form of ethanol.

An constituent in alcoholic drinks including beer, wine, and brandy, ethanol is also known as alcohol, ethyl alcohol, and grain alcohol. It is a transparent liquid with no color. Ethylene can be hydrated to make ethanol, which is a naturally occurring result of plant fermentation.

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The Lewis dot structures for water (H2O) and ethanol (C2H5OH) are as follows:

Water (H2O):

H

/

H O

\ /

H

Ethanol (C2H5OH):

H H

\ /

C

/

H H

|

O

|

H

In both structures, the oxygen atom has a higher electronegativity than the hydrogen or carbon atoms, meaning it attracts electrons more strongly. As a result, the oxygen atom in both water and ethanol has a partial negative charge (denoted by the symbol δ-), while the hydrogen atoms have a partial positive charge (denoted by the symbol δ+). This polarity arises due to the unequal sharing of electrons between the oxygen and hydrogen atoms, with the oxygen atom attracting the electrons more strongly.

In water, the partial negative charge on the oxygen atom creates a hydrogen bond with the partial positive charge on a neighboring hydrogen atom of a nearby water molecule, resulting in the formation of a network of hydrogen bonds. These hydrogen bonds give water its unique properties, such as high surface tension and high boiling and melting points.

In ethanol, the partial negative charge on the oxygen atom is also responsible for the molecule's polarity. The carbon atom is partially positive due to the electron-withdrawing effect of the oxygen atom, which makes ethanol more soluble in polar solvents such as water. Ethanol can also form hydrogen bonds with water due to the presence of the hydroxyl (OH) group.

Pressure is independent variable and volume is dependent variable. During the investigation, the temperature and quantity of gas are kept constant.

Boyle's law, also known as the Boyle-Mariotte law or Mariotte's law, seems to be an observational gas law that specifies the connection between confined gas pressure and volume.

If the temperature as well as quantity of gas stay constant within a closed system, the absolute pressure applied by a constant amount of an ideal gas seems to be inversely correlated with the volume it fills. Pressure is independent variable and volume is dependent variable.

Therefore, pressure is independent variable and volume is dependent variable. During the investigation, the temperature and quantity of gas are kept constant.

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Title of your comic strip: Adventures of Ice Cube.

So, the title will be "Adventure of Ice Cube".

Define the term title.

The term title refers to the name or heading given to a book, article, movie, piece of music, or other creative work that identifies it and distinguishes it from other works. It can also refer to a position or designation given to a person, such as a job title or academic title.

Box 1:

Introduction of character: Meet Ice Cube, a small, square-shaped piece of ice made of water molecules. Ice Cube was comfortably sitting in a glass of water until he was exposed to thermal energy.

Caption: This is Ice Cube. He is made of water molecules.

Box 2:

Source of thermal energy: A warm hand holding the glass of water.

Caption: Suddenly, a warm hand holds the glass of water.

Box 3:

Solid to liquid phase: Ice Cube starts to melt and becomes a liquid as it absorbs thermal energy from the warm hand.

Caption: Ice Cube starts to melt as he absorbs thermal energy from the warm hand.

Box 4:

Liquid to gas phase: Ice Cube continues to absorb thermal energy, and as a result, it transforms into water vapor and evaporates into the air.

Caption: As Ice Cube continues to absorb thermal energy, it transforms into water vapor and evaporates into the air.

Box 5:

Conclusion: Ice Cube's adventure comes to an end, but he realizes that he is never really gone, as his water molecules will always be a part of the water cycle.

Caption: The end. Ice Cube is gone, but his water molecules will always be a part of the water cycle.

Box 6:

Additional Information: Show the water cycle and explain how Ice Cube's water molecules can be a part of it.

Caption: Ice Cube's water molecules will eventually come together with other water molecules to form clouds and rain. Then, they will flow into rivers and oceans, and the cycle starts again.

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In science, direction can be important because it can affect the outcome of an experiment.

Direction is the process of guiding or instructing someone to a particular destination or goal. It can include giving instructions, leading and pointing out a path to follow, or providing assistance to help a person or group reach a certain destination. Direction can be provided verbally or using visual cues, such as maps or diagrams. It is an essential skill for many professions, such as teaching, management and leadership roles. Direction can also help with problem solving, as it can help to identify the steps needed to reach a desired result.

For example, if you are conducting a test on the effects of wind on a plant, the direction of the wind can have a significant effect on the results of the experiment. If the wind is blowing from the north, it will have a different impact on the plant than if it was blowing from the south. Direction can also be important in physics when looking at the movement of objects, or when understanding the forces that are acting on them.

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The beta decay of potassium 40 produces a beta particle and an atom with an atomic number of 19.

So option C is correct answer.

What is Atomic Number?

The atomic number is the number of protons found in the nucleus of an atom of a chemical element. It is a fundamental property of an element, which determines its identity and its position in the periodic table.

Each element has a unique atomic number, which is represented by the symbol Z. For example, the element hydrogen has an atomic number of 1, which means that it has one proton in its nucleus. The element carbon has an atomic number of 6, indicating that it has six protons in its nucleus.

potassium that undergoes beta decay. During beta decay, a neutron in the nucleus of the potassium 40 atom is converted into a proton, and a beta particle (which is an electron) is emitted. The resulting atom has one more proton in its nucleus than the original atom, so its atomic number increases by one to 20.

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The IUPAC name of the compound NaB(OH)4 is sodium tetrahydroxyborate.

The compound NaB(OH)4 is made up of sodium ions (Na+) and tetrahydroxyborate anions (B(OH)4-).

According to IUPAC naming conventions, the name of an ionic compound is written by listing the cation first, followed by the anion. In this case, the cation is sodium (Na+) and the anion is tetrahydroxyborate (B(OH)4-).

To name the tetrahydroxyborate anion, we start by identifying the boron atom, which has a valency of three. The hydroxide ions (OH-) are then added to balance the charge, resulting in the formula B(OH)4-.

The prefix "tetra-" indicates that there are four hydroxide groups attached to the boron atom. The suffix "-ate" is used to indicate that this is an anion.

Finally, the name of the compound is written as "sodium tetrahydroxyborate" because it contains one sodium cation and one tetrahydroxyborate anion.

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The amount of the propane can be obtained from the mass and the mass of the propane.

To calculate the amount of propane gas in moles, you need to know the mass of propane gas and its molar mass. The molar mass of propane (C3H8) is approximately 44.1 g/mol.

Once you know the mass of the propane gas, you can use the following formula:

moles = mass (in grams) / molar mass (in grams per mole)

For example, let's say you have 88.2 g of propane gas:

moles = 88.2 g / 44.1 g/mol

moles = 2.0 mol

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There are 960.39 grams in 6.500 moles of calcium nitride (Ca3N2).

Mole is defined as to be containing exactly 6.02214076×10²³ elementary entities and mole is the unit of amount of substance in the International System of Units.

Molar mass of calcium nitride (Ca3N2) is: 3 (atomic mass of calcium) + 2 (atomic mass of nitrogen)

= 3(40.08 g/mol) + 2(14.01 g/mol)

= 120.24 g/mol + 28.02 g/mol

= 148.26 g/mol

mass (g) = moles × molar mass

mass (g) = 6.500 mol × 148.26 g/mol

= 960.39 g

Therefore, there are 960.39 grams in 6.500 moles of calcium nitride (Ca3N2).

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Answer: .38 atm

Explanation:

p2= p1 x t2 / t1

0.45 x 259.15 / 303.15

The concentration of the H₂PO₂ solution was 0.66 M.

The balanced chemical equation for the reaction between H₂PO₂ and NaOH is:

H₂PO₂ (aq) + 3NaOH(aq) → Na₃PO₄(aq) + 2H₂O(l)

From the equation, we can see that 3 moles of NaOH are required to react with 1 mole of H₂PO₂.

Let's start by calculating the number of moles of NaOH that reacted with the H₂PO₂:

moles of NaOH = concentration x volume = 4 M x 0.025 L = 0.1 moles

Since 3 moles of NaOH are required to react with 1 mole of H₂PO₂, the number of moles of H₂PO₂ present in the reaction is:

moles of H₂PO₂ = 0.1 moles / 3 = 0.033 moles

Now, let's use the volume of the H₂PO₂ solution to calculate its concentration:

concentration of H₂PO₂ = moles / volume = 0.033 moles / 0.05 L = 0.66 M

Therefore, the concentration of the H₂PO₂ solution was 0.66 M.

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Answer:Super-giants

Explanation:

A liter of milk has a [H+] of about 2.51 × 10–7. (You may prefer to think of the hydronium ion concentration, [H3O+], as 2.51 × 10–7.) Use the formula for the calculation of pH provided and show each step as you calculate the pH of milk. In order to get full points you must show all the steps you take.

ANSWER:

[H+] = [H3O+] = 2.52 * 10^-7M

pH = -log [H+]

pH = -log [2.51*10^-7]

pH = -[-6.60]

pH = 6.60

Hope this helps :)

I feel confident about modeling how the energy in a reaction will change, because this unit provided me with the information necessary to determine the type. With this knowledge, I can now interrelate with other properties and believe that this new ability will assist in future units as well. This unit has encouraged a deeper understanding of the world and its guiding principles.

(HOPE THIS HELPS <3)

Answer:

1. 1 mole of Cu to 2 moles of AgNO3

2. 1 mole of Cu to 2 moles of Ag

Explanation:

Cu + 2AgNO3 —-> Cu(NO3)2 + 2Ag

Cu = 1

Ag = 2

NO3 = 2

1. 1 mole of Cu to 2 moles of AgNO3

2. 1 mole of Cu to 2 moles of Ag