an example of a polyatomic ion is carbonate: co3 2- what part of the formula should show up in your final answer

Answer:

It help cause we compost food scraps and other organic wastes. We also reuse and recycle materials to organize for government and industry to develop community recycling materials.

It depend on your opinion as a student.

Explanation:

Hope it helps

Organizing a community to collect waste  and implementing ecological solid waste management greatly helps to reduce pollution and landfilling also creates ideas for recycling.

In order to build and sustain an efficient waste management programme, community-based waste management are partnerships between non-governmental organizations, governmental organizations, and the affected communities.

Community based waste management helps to direct participation and accountability of community members monitoring the collection and reduction of trash waste separation at the homestead level

Similarly they are using priceless and reusable goods on-site , recycling organic trash as well as public collection service collects and transports garbage to a treatment facility.

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pH of solution A is 12.5 and it is the most basic (alkaline) among all.

Those solution which are having value more than 7 in the pH scale shows the basic character and relation between pH & pOH will be represented as:

pH + pOH = 14

Now we calculate the pH for given solutions:

For solution A, pOH = 1.5

pH = 14 - 1.5 = 12.5

For solution B, pOH = 7

pH = 14 - 7 = 7

For solution C, pOH = 13.5

pH = 14 - 13.5 = 0.5

Value of pH for solution A is highest and shows basic nature, solution B is neutral and solution C is acidic in nature.

Hence, solution A is most basic.

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The reaction performed with the elephant toothpaste demonstration is known as a decomposition reaction.

The process of breaking down a chemical compound into smaller molecules, atoms, or ions is known as a decomposition reaction. It is also known as analysis or disintegration. A reaction in which a single substance is broken down into two or more simpler substances is known as a decomposition reaction. The elephant toothpaste demonstration is a simple chemical reaction in which hydrogen peroxide breaks down into oxygen gas and water in a matter of seconds.

The formula for hydrogen peroxide is H₂O₂. It is a pale blue liquid that contains hydrogen, oxygen, and water. When you add yeast, soap, and food coloring, the reaction is more exciting. The yeast acts as a catalyst, breaking down hydrogen peroxide into water and oxygen gas. The oxygen gas created causes the soap to foam up, creating the "elephant toothpaste" effect. The chemical reaction that takes place during the elephant toothpaste demonstration can be written as follows:

2H₂O₂(liquid) → 2H₂O (liquid) + O₂ (gas)

This reaction is an example of a decomposition reaction.

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Answer:

Covalent bonding is the sharing of electrons between atoms. In addition, the ionization energy of the atom is too large and the electron affinity of the atom is too small for ionic bonding to occur.

For example: carbon does not form ionic bonds because it has 4 valence electrons, half of an octet.

Explanation:

a) This type of reaction is a combustion reaction.

b) The reaction is a combustion reaction and the percent yield is 50%.

The percent yield of a reaction can be calculated by dividing the actual yield of a product by the theoretical yield of the product, multiplied by 100%.

To find the theoretical yield of the product, we need the balanced equation: \(2 C_2H_2(g) + 5 O_2(g)\) → \(4 CO_2(g) + 2 H_2O(g)\)

The theoretical yield of water is 2 moles \(H_2O\) x 18.5 g/mole = 37 g

To find the actual yield of the product, we are given that 18.5 g of water is formed.

So the percent yield = (actual yield / theoretical yield) x 100%

= (18.5g / 37g) x 100% = 50%.

So the percent yield of this reaction is 50%.

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The magnitude of the force acting on the body is 4000 Newtons.

To find the magnitude of the force, we can use Newton's second law of motion, which states that the force applied to an object is equal to the product of its mass and acceleration.

The given information includes the mass of the body (80 kg) and the resulting velocity (10 m/s). However, since the time duration (0.2 seconds) is also provided, we can use it to calculate the acceleration of the body.

The formula to calculate acceleration is:

Acceleration = Change in Velocity / Time

The change in velocity can be calculated by subtracting the initial velocity (which is 0 m/s as the body is at rest) from the final velocity:

Change in Velocity = Final Velocity - Initial Velocity

Change in Velocity = 10 m/s - 0 m/s

Change in Velocity = 10 m/s

Now, we can calculate the acceleration:

Acceleration = Change in Velocity / Time

Acceleration = 10 m/s / 0.2 s

Acceleration = 50 m/s²

Finally, we can calculate the magnitude of the force using Newton's second law:

Force = Mass x Acceleration

Force = 80 kg x 50 m/s²

Force = 4000 N

Therefore, the magnitude of the force acting on the body is 4000 Newtons.

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Spanish System is not the name of a measurement system

WHAT IS MEASUREMENT SYSTEM?

Hence, Spanish System is not one of the names of measurement of systems.

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The various forms of abuse portrayed in A Thousand Splendid Suns, including physical violence, emotional manipulation, and neglect, and how the characters navigate and endure these experiences.

A Thousand Splendid Suns by Khaled Hosseini is a powerful novel that explores themes of abuse and oppression in Afghanistan. Here are some quotes from the book that deal with these themes:

"She was leaving the world as a woman who had loved and been loved back. She was leaving it as a friend, a companion, a guardian. A mother. A person of consequence at last. No. It was not so bad, Mariam thought, that she should die this way. Not so bad. This was a legitimate end to a life of illegitimate belongings." - This quote speaks to the idea that Mariam, one of the book's main characters, finds a sense of purpose and belonging despite the abuse she endures.

"She wondered if, in his own way, this was how her father loved her, through food." - This quote highlights the complicated nature of abusive relationships, as Mariam tries to find some semblance of love and caring in her father's cruel behavior.

"Mariam wished for so much in those final moments. Yet as she closed her eyes, it was not regret any longer but a sensation of abundant peace that washed over her. She thought of her entry into this world, the harami child of a lowly villager, an unintended thing, a pitiable, regrettable accident. A weed. And yet she was leaving the world as a woman who had loved and been loved back. She was leaving it as a friend, a companion, a guardian. A mother. A person of consequence at last." - This quote echoes the first one and speaks to Mariam's eventual redemption and sense of self-worth despite the abuse she experiences.

"The man had a face that looked like it had been designed to be struck repeatedly." - This quote is a harsh but accurate description of Rasheed, another main character, who is abusive to both Mariam and the book's other protagonist, Laila.

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for some reason it won't let me type the answer, it's the first option

Answer:

x+y = 12

Explanation:

shfb gfgjj ghjj dvgg ggggg ghggs ufac t g dgyyh

When a nickel(II) sulfate solution is placed in water, it forms a homogeneous solution.

Nickel(II) sulfate is a soluble salt that readily dissolves in water due to its ionic nature. In water, the nickel(II) ions (Ni²⁺) and sulfate ions (SO₄²⁻) become hydrated, forming an aqueous solution of nickel(II) sulfate.

The solution will appear clear and colorless, as nickel(II) sulfate does not have a distinct color. However, if the nickel(II) sulfate solution is sufficiently concentrated, it may appear slightly blue-green due to the absorption of light by the nickel ions. This is known as a "ligand field color" and is due to the electronic transitions within the nickel complex.

Overall, the addition of nickel(II) sulfate to water will form a homogeneous solution that is clear and colorless, unless the concentration of the solution is high enough to cause a ligand field color.

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Answer:

is the smallest unit of ordinary matter that forms a chemical element.

Explanation:

and were created after the Big Bang 13.7 billion years ago.

Answer:

eight atoms

hope it helps

Answer:

Aluminum and Zinc

Explanation:

Amphoteric oxides have both acidic and basic properties. The oxides of aluminium and zinc are examples. They form salts when they react with acids. They also react with alkalis to form complex salts.

Answer:

not chemical only that's classifying reactions

and figures equations

Explanation:

that may answer

sana po makatulong po sa inyo

The reaction of the different metals together to form a new compound is called a chemical reaction.

According to the question, we have to color the region which shows the behavior of the reaction.

Hence, these are the answer to the question.

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the d-spacing of the plane is 0.079nm which is equal to 0.79amstrong the miller indices of the family of directions in which {101} planes intersect are (434).

Associated with each plane is its d-spacing. This is the distance between successive, parallel planes of atoms. In particular, it is the distance between the planes described by xh + yk + zl = 0 and xh + yk + zl = 1. can be calculated by the Bragg's law: λ=2dsin(Ɵ) where λ is the wavelength of the X-ray beam (0.154nm), d is the distance between the adjacent GO sheets or layers, Ɵ is the diffraction angle.

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The enthalpy of the reaction is 14 J/mol.

The enthalpy of a reaction (ΔH) is the amount of energy transferred between a system and its surroundings during a chemical reaction at constant pressure, measured in joules per mole (J/mol). This value is important because it can tell us whether a reaction is exothermic or endothermic, as well as give us information about the strength of chemical bonds within the reactants and products.To calculate the enthalpy of a reaction, we need to know the amount of energy released or absorbed (Q) and the number of moles of the compound involved in the reaction (n). We can use the equation:
ΔH = Q/n
Given that 6 moles of a compound produce 84 J of energy, we can calculate the enthalpy of the reaction as follows:
ΔH = Q/n
ΔH = 84 J / 6 mol
ΔH = 14 J/mol
This means that for every mole of the compound involved in the reaction, 14 J of energy is transferred between the system and the surroundings. Since the value is positive, we can conclude that the reaction is endothermic, meaning that it requires an input of energy to occur.It is worth noting that the enthalpy of a reaction can depend on a number of factors, such as temperature, pressure, and the specific conditions under which the reaction occurs. As such, it is important to take these factors into account when calculating or predicting enthalpy values.

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The following prompt looks at various kinds of governments and the countries practicing them. See the attached image. One example is India tha practices the Parliamentary Republic.

A parliamentary republic is a republic that works under a parliamentary form of government in which the executive branch is legitimated by and accountable to the legislature. There are several types of parliamentary republics.

Alabnia, Armenia, Austria, Bangladesh, Barbados, Bosnia and Herzegovina, Botswana, Bulgaria, Croatia, Czech Republic, Dominica, Estonia, Ethiopia, Fiji, Finland, Georgia, Germany, Greece, Guyana, Hungary, Iceland, India, Iraq, Ireland, and others are parliamentary republics.

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To estimate the enthalpy of reaction for the combination of carbon monoxide (CO) and oxygen (O2) to produce carbon dioxide (CO2), we can use bond enthalpies. The enthalpy change of a reaction can be calculated by considering the difference in bond enthalpies between the reactants and products.

Given the balanced equation:

2 CO(g) + O2(g) → 2 CO2(g)

We need to consider the bonds broken in the reactants and the bonds formed in the products. The bond enthalpies (ΔH) for the relevant bonds are as follows:

ΔH(C=O) = 745 kJ/mol (bond broken in CO)

ΔH(O=O) = 498 kJ/mol (bond broken in O2)

ΔH(C=O) = 799 kJ/mol (bond formed in CO2)

Now, let's calculate the enthalpy change (ΔH) for the reaction using the bond enthalpies:

ΔHrxn = (2 * ΔH(C=O) CO2) - (2 * ΔH(C=O) CO) - ΔH(O=O)

ΔHrxn = (2 * 799 kJ/mol) - (2 * 745 kJ/mol) - 498 kJ/mol

ΔHrxn = 1598 kJ/mol - 1490 kJ/mol - 498 kJ/mol

ΔHrxn = -390 kJ/mol

Therefore, the estimated enthalpy of reaction for the combination of carbon monoxide and oxygen to produce carbon dioxide is -390 kJ/mol. The negative sign indicates that the reaction is exothermic, releasing energy.

Complete que-use the bond enthalpies below to estimate the enthalpy of reaction of carbon monoxide and oxygen to produce carbon dioxide: 2CO +O2---> 2CO2 C-C =351 kj/mol c(double)0 =799kj/mol C(triple bond) O=1070kj/mol O(double bond)O =498.7. PLease explain not just give me the answer.. Thank you I was doing products minus reactants 2(799+799)-2(1070)- (489.7)= 1.55x10^3 but not getting write answer

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A liquid is allowed to evaporate and leaves no residue. It can not be determined whether it was an element, a compound, or a mixture.

A water vapor molecule stays roughly 10 days in the atmosphere after it has evaporated. Water vapor starts to cool back down as it ascends higher in the atmosphere. The water vapor condenses when it becomes cold enough, turning it back into liquid water. Eventually, individual water droplets will condense to create clouds and precipitation.

It is not possible to determined whether it would be an element, a compound and mixture because the size of the particle will be too less.

A method for separating homogenous mixtures with one or even more dissolved salts is called evaporation. The procedure separates the liquid from the solid components. Usually, the procedure entails heating the combination until there is no more liquid is present.

Therefore, it can not be possible to determined whether it was an element, a compound, or a mixture by evaporation.

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80% copper (Cu)

Cu: 80 :  63.546 = 1.259

O: 20 : 16 = 1.25

Cu:O = 1 : 1

the formula: CuO

89% copper (Cu)

Cu: 89 :  63.546 = 1.4

O: 11 : 16 = 0.6875

Cu:O = 2:1

the formula: Cu₂O

Sodium from Na3PO4(aq) could be prepared by electrolysis of the aqueous solution shown. Based on the provided options, the element that could be prepared by electrolysis of the aqueous solution shown

Potassium from KCl(aq)
Here's why:
- Sodium from Na3PO4(aq) and Nitrogen from AgNO3(aq) are not possible because these ions are more stable in solution than undergoing electrolysis.
- Sulfur from K2S04(ed) is not valid as the compound should be K2SO4(aq) and even then, it would produce oxygen at the anode instead of sulfur.
- Oxygen from H2SO4(aq) can be prepared through electrolysis, but this is not an element directly obtained from the compound.
Potassium from KCl(aq) can be prepared by electrolysis. During this process, K+ ions are reduced to potassium metal at the cathode, and Cl- ions are oxidized to chlorine gas at the anode.

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Explanation:

2Al(OH)3 + 3H2SO4 --> Al2 (SO4)3 + 6H2O

Answer:

Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.

Explanation:

♡

The heat that is absorbed in each case or the mass obtained are;

1)  305 g

2) -27.4 J

3) 523°C

4) 465 g

5)  -58.9 J

Let us now go on to look at the question that have been asked and the things that we need to find in each case. If we look at the question we can see that;

q = heat

dT = temperature change

m = mass

1) q = 119150 J

ΔT = 1409.71

c = 0.2772

q = mcdT

m = q/cdT

m = 119150 J/1409.71 *  0.2772

m = 305 g

2) q = 83.5 * 2.05 * (-0.16)

q = -27.4 J

3) dT = q/mc

= 57984 J/535.2 * 0.207

= 523°C

4) m = q/dT * c

m = 1914.9 J/(-17.27) * 0.2386

m = 465 g

5) q = 30.3 * 0.2772 * (-7.01)

q = -58.9 J

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The correct statement about the citric acid cycle is that it produces most of the ATP that is subsequently used by the electron transport chain.

The citric acid cycle is also known as the Krebs cycle or the tricarboxylic acid cycle. It is a series of enzymatic reactions that occur in the mitochondria of eukaryotic cells. The cycle oxidizes acetyl CoA, a product of the breakdown of carbohydrates, fats, and proteins, to carbon dioxide. During this process, energy is released in the form of ATP and electrons are transferred to electron carriers, such as NADH and FADH2. These electron carriers are then used by the electron transport chain to produce more ATP. Therefore, the citric acid cycle is an important step in the process of cellular respiration, which generates energy for the cell. Option 2 is correct, as it highlights the main function of the citric acid cycle in producing ATP.

Option 1 is incorrect because the citric acid cycle does not directly oxidize glucose, but rather uses the products of glycolysis, pyruvate and acetyl CoA, as substrates. Option 3 is partly correct, as the availability of NAD+ is important for the citric acid cycle to proceed, but NAD+ is not a product of glycolysis. Option 4 is also partly correct, as the last reaction in the cycle produces oxaloacetate, which can be used as a substrate for the first reaction, but this is not the main function of the cycle. Option 5 is incorrect, as the citric acid cycle does not require molecular oxygen directly, but the electron transport chain, which is linked to the cycle, does require oxygen to function.
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If 0.50 liter of a 2.0 m hcl is diluted with h2o to a volume of 1.0 liter. The molarity of the new solution is 2.0M.

The molarity of the new solution can be calculated by using the following equation:

M1V1 = M2V2, where M1 is the initial molarity, V1 is the initial volume, M2 is the new molarity, and V2 is the new volume. In this case, M1 is 2.0M, V1 is 0.50L, V2 is 1.0L.

Plugging these values into the equation we get:

2.0M x 0.50L = M2 x 1.0L, which simplifies to M2 = 2.0M.

Molarity (M) is a unit of concentration used in chemistry that expresses the number of moles of solute in one liter of solution. Mathematically, it is defined as:

Molarity (M) = moles of solute / liters of solution

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The reactivity of halogens in free radical halogenation follows the order: fluorine > chlorine > bromine > iodine. This is due to the decreasing bond dissociation energy (BDE) of the halogen-halogen bond in this order.

Therefore, in the free radical halogenation of ethane, fluorine would be the most reactive halogen and undergo the reaction most rapidly. Chlorine would be less reactive than fluorine but more reactive than bromine and iodine.

Iodine and bromine are not as reactive as fluorine and chlorine due to their large size and lower electronegativity, which results in a weaker halogen-halogen bond. As a result, the reaction between ethane and iodine or bromine would be slower than that with fluorine or chlorine.

Finally, pyridine is not a halogen and is not expected to undergo free radical halogenation with ethane.

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Answer:

The answer is "1".

Explanation:

It is the lone pairs at, which the central atom provides the molecular and the polarity. It is only for substances with just a central atom, for which the molecules with only one central atom and only one of the solitary paired were required, that's why in this question the "1" is the correct answer.

Answer:

A: Crushing a Rock

Explanation:

The rock is physicially being broken down and turned into either smaller pieces of rock or dust if you pound it hard enough.

Answer:

the answer is a) crushing a rock because even though you broke it, its still a rock just in smaller pieces. B is not the answer because its a chemical change. The shirt is losing colour and you can't reverse it.